https://elinux.org/api.php?action=feedcontributions&user=Mcampos&feedformat=atomeLinux.org - User contributions [en]2024-03-28T16:24:03ZUser contributionsMediaWiki 1.31.0https://elinux.org/index.php?title=RaspberryPi_Boards&diff=157376RaspberryPi Boards2012-08-01T22:04:18Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week (back side, board edge near LAN connector). In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
<br />
| BH1208<br />
| Hynix <pre></pre><br />
| SMSC<pre></pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
| <pre></pre><br />
| <br />
* No issues after getting a good power supply<br />
| [[File:RaspberryPi-BS1208-Front-MarkBeckett.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1208-Back-MarkBeckett.JPG|100px|thumb|center]]<br />
| ?<br />
| MarkBeckett<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre><br />
H9TKNNN2GDMP<br />
LRNOM 217A<br />
</pre><br />
| SMSC<br />
<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
8R150188B<br />
ASE-TW (e3)<br />
</pre><br />
| <pre>2E<br />
22-<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* D1 shorted when attaching a Neewer HDMI to VGA adapter. The adapter has had no other tests and the raspberry pi's HDMI output has not been connected to any other devices before or since.<br />
| [[File:RaspberryPi-BH1218-Front-Tom1989.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BH1218-Back-Tom1989.jpg|100px|thumb|center]]<br />
| RS<br />
| Tom1989<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|-<br />
| BS1219<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GAL0859V</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
0941-LF</pre><br />
|<br />
* First had problems (freezing, no LAN, etc.) due to low quality power supply - cheap ebay adaptor. Solved with own [[RPi_5V_PSU_construction| PSU construction]] with 7805 stabiliser adjusted to 5.25V.<br />
* Now works OK with Raspbian “wheezy”, but not yet tested extensively.<br />
* Ethernet: HR901110A 1220<br />
| [[File:RPi-BS1219-Front_Pinoccio.jpg|100px|thumb|center]]<br />
| [[File:RPi-BS1219-Back_Pinoccio.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Pinoccio<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=157136RaspberryPi Boards2012-07-31T17:54:36Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week (back side, board edge near LAN connector). In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
<br />
| BH1208<br />
| Hynix <pre></pre><br />
| SMSC<pre></pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
| <pre></pre><br />
| <br />
* No issues after getting a good power supply<br />
| [[File:RaspberryPi-BS1208-Front-MarkBeckett.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1208-Back-MarkBeckett.jpg|100px|thumb|center]]<br />
| ?<br />
| MarkBeckett<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre><br />
H9TKNNN2GDMP<br />
LRNOM 217A<br />
</pre><br />
| SMSC<br />
<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
8R150188B<br />
ASE-TW (e3)<br />
</pre><br />
| <pre>2E<br />
22-<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* D1 shorted when attaching a Neewer HDMI to VGA adapter. The adapter has had no other tests and the raspberry pi's HDMI output has not been connected to any other devices before or since.<br />
| [[File:RaspberryPi-BH1218-Front-Tom1989.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BH1218-Back-Tom1989.jpg|100px|thumb|center]]<br />
| RS<br />
| Tom1989<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|-<br />
| BS1219<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GAL0859V</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
0941-LF</pre><br />
|<br />
* First had problems (freezing, no LAN, etc.) due to low quality power supply - cheap ebay adaptor. Solved with own [[RPi_5V_PSU_construction| PSU construction]] with 7805 stabiliser adjusted to 5.25V.<br />
* Now works OK with Raspbian “wheezy”, but not yet tested extensively.<br />
* Ethernet: HR901110A 1220<br />
| [[File:RPi-BS1219-Front_Pinoccio.jpg|100px|thumb|center]]<br />
| [[File:RPi-BS1219-Back_Pinoccio.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Pinoccio<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=157130RaspberryPi Boards2012-07-31T17:52:21Z<p>Mcampos: /* Hardware versions/revisions */ New board BH1208</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week (back side, board edge near LAN connector). In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
<br />
| BH1208<br />
| Hynix <pre></pre><br />
| SMSC<pre></pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
| <pre></pre><br />
| <br />
* No issues after getting a good power supply<br />
| [[File:RaspberryPi-BS1208-Front-MarkBeckett.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1208-Back-MarkBeckett.jpg|100px|thumb|center]]<br />
| ?<br />
| MarkBeckett<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre><br />
H9TKNNN2GDMP<br />
LRNOM 217A<br />
</pre><br />
| SMSC<br />
<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
8R150188B<br />
ASE-TW (e3)<br />
</pre><br />
| <pre>2E<br />
22-<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* D1 shorted when attaching a Neewer HDMI to VGA adapter. The adapter has had no other tests and the raspberry pi's HDMI output has not been connected to any other devices before or since.<br />
| [[File:RaspberryPi-BH1218-Front-Tom1989.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BH1218-Back-Tom1989.jpg|100px|thumb|center]]<br />
| RS<br />
| Tom1989<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|-<br />
| BS1219<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GAL0859V</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
0941-LF</pre><br />
|<br />
* First had problems (freezing, no LAN, etc.) due to low quality power supply - cheap ebay adaptor. Solved with own [[RPi_5V_PSU_construction| PSU construction]] with 7805 stabiliser adjusted to 5.25V.<br />
* Now works OK with Raspbian “wheezy”, but not yet tested extensively.<br />
* Ethernet: HR901110A 1220<br />
| [[File:RPi-BS1219-Front_Pinoccio.jpg|100px|thumb|center]]<br />
| [[File:RPi-BS1219-Back_Pinoccio.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Pinoccio<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BS1208-Back-MarkBeckett.JPG&diff=157124File:RaspberryPi-BS1208-Back-MarkBeckett.JPG2012-07-31T17:25:19Z<p>Mcampos: </p>
<hr />
<div></div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BS1208-Front-MarkBeckett.JPG&diff=157118File:RaspberryPi-BS1208-Front-MarkBeckett.JPG2012-07-31T17:24:48Z<p>Mcampos: </p>
<hr />
<div></div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=147878RaspberryPi Boards2012-07-09T14:52:26Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre><br />
H9TKNNN2GDMP<br />
LRNOM 217A<br />
</pre><br />
| SMSC<br />
<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
8R150188B<br />
ASE-TW (e3)<br />
</pre><br />
| <pre>2E<br />
22-<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* D1 shorted when attaching a Neewer HDMI to VGA adapter. The adapter has had no other tests and the raspberry pi's HDMI output has not been connected to any other devices before or since.<br />
| [[File:RaspberryPi-BH1218-Front-Tom1989.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BH1218-Back-Tom1989.jpg|100px|thumb|center]]<br />
| RS<br />
| Tom1989<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BH1218-Back-Tom1989.jpg&diff=147872File:RaspberryPi-BH1218-Back-Tom1989.jpg2012-07-09T14:50:54Z<p>Mcampos: RaspberryPi, Model B, Hynix RAM, Back, from Tom1989</p>
<hr />
<div>RaspberryPi, Model B, Hynix RAM, Back, from Tom1989</div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BH1218-Front-Tom1989.jpg&diff=147866File:RaspberryPi-BH1218-Front-Tom1989.jpg2012-07-09T14:50:27Z<p>Mcampos: RaspberryPi, Model B, Hynix RAM, Front, from Tom1989</p>
<hr />
<div>RaspberryPi, Model B, Hynix RAM, Front, from Tom1989</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=147860RaspberryPi Boards2012-07-09T14:47:56Z<p>Mcampos: /* Hardware versions/revisions */ New board</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre><br />
H9TKNNN2GDMP<br />
LRNOM 217A<br />
</pre><br />
| SMSC<br />
<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
8R150188B<br />
ASE-TW (e3)<br />
</pre><br />
| <pre>2E<br />
22-<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* D1 shorted when attaching a Neewer HDMI to VGA adapter. The adapter has had no other tests and the raspberry pi's HDMI output has not been connected to any other devices before or since.<br />
| [[File:RaspberryPi-BH1218-Front-Tom1989.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BH1218-Back-Tom1989.jpg|100px|thumb|center]]<br />
| RS<br />
| Tom1989<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=147854RaspberryPi Boards2012-07-09T14:39:00Z<p>Mcampos: /* Hardware versions/revisions */ New board</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| Samsung<br />
| ?<br />
| <pre></pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| [[File:RaspberryPi-BS1218-Front-JakeBlues.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-BS1218-Back-JakeBlues.jpg|100px|thumb|center]]<br />
| Farnell<br />
| JakeBlues<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.9 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BS1218-Back-JakeBlues.jpg&diff=147848File:RaspberryPi-BS1218-Back-JakeBlues.jpg2012-07-09T14:13:11Z<p>Mcampos: RaspberryPi, Model B, Samsung, Back, from JakeBlues</p>
<hr />
<div>RaspberryPi, Model B, Samsung, Back, from JakeBlues</div>Mcamposhttps://elinux.org/index.php?title=File:RaspberryPi-BS1218-Front-JakeBlues.jpg&diff=147842File:RaspberryPi-BS1218-Front-JakeBlues.jpg2012-07-09T14:12:30Z<p>Mcampos: RaspberryPi, Model B, Samsung, Front, from JakeBlues.jpg</p>
<hr />
<div>RaspberryPi, Model B, Samsung, Front, from JakeBlues.jpg</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=146912RaspberryPi Boards2012-07-06T13:17:33Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* "I haven't had any issues"[http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=50]<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=146906RaspberryPi Boards2012-07-06T13:01:17Z<p>Mcampos: /* Hardware versions/revisions */ Added antijn board</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAJ0419C</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
5.8 / 3.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:Antijn_raspi_farnell_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_farnell_bot.jpg|100px|thumb|center]]<br />
| Farnell<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LRNOM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR1501888</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.4 / 5.0<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| [[File:Antijn_raspi_RS_top.jpg|100px|thumb|center]]<br />
| [[File:Antijn_raspi_RS_bot.jpg|100px|thumb|center]]<br />
| RS<br />
| antijn<br />
|-<br />
| BH1218<br />
| Hynix <pre><br />
H9TKNNN2GDMP<br />
LRNDM 217A</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1817<br />
BR1494828</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
6.1 / 5.6<br />
| <pre><br />
SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
* Ethernet HR901110A 1211<br />
* E2112RSV1.0B1.1<br />
| <br />
| <br />
| RS<br />
| dukla2000<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1216-A1B17<br />
8R149482C<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
14 / 5.1<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Up headless with Squeeze and Wheezy for ~six weeks, light duty, no problems<br />
* Ethernet: HR901110A 1211<br />
|[[File:Rpi001F.jpg|100px|thumb|center]]<br />
|[[File:Rpi001R.jpg|100px|thumb|center]]<br />
| RS<br />
| Davidm870<br />
|-<br />
| BS1218<br />
| Samsung <pre>216<br />
K42P2G324ED-AGG1<br />
GAL0839T</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1212-A1B17<br />
8R149885A<br />
ASE-TW (e3)</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
T014 / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* Comes upp headless with Wheezy, not tested extensively<br />
* Ethernet: HR901110A 1218<br />
|[[File:Rpi002F.jpg|100px|thumb|center]]<br />
|[[File:Rpi002R.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Davidm870<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=146630RaspberryPi Boards2012-07-05T15:56:03Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are being debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=146606RaspberryPi Boards2012-07-05T14:36:02Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1208<br />
| Hynix<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| 14<br />
? / ?<br />
| ?<br />
| <br />
* None<br />
| [[File:Raspberry-pi-top.jpg|100px|thumb|center]]<br />
| [[File:Raspberry-pi-bottom.jpg|100px|thumb|center]]<br />
| Farnell<br />
| selsinork<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 217A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188B<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi1T.jpg|100px|thumb|center]]<br />
|[[File:RPi1B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1218<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 218A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
|<br />
* None<br />
|[[File:RPi2T.jpg|100px|thumb|center]]<br />
|[[File:RPi2B.jpg|100px|thumb|center]]<br />
| RS<br />
| Mortimer<br />
|-<br />
| BH1208<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>220<br />
16V<br />
EE2</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
1001-LF</pre><br />
|<br />
* Stable, powers up off any charger. Powers off laptop USB without any issues<br />
* Ethernet: LU1S041ALF 1018M<br />
|<br />
|<br />
| Farnell<br />
| Tass<br />
|-<br />
| BH1213<br />
| Hynix <pre>H9TKNNN2GDMP<br />
LANDM 149A</pre><br />
| SMSC<br />
<pre>LAN9512-JZX<br />
B1134-A1B17<br />
BR147769B<br />
STA-SG</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <pre>SE8117T33<br />
943-LF</pre><br />
|<br />
* Stable, no power issues (not thouroughly tested)<br />
* Ethernet: HR901110A 1211|<br />
|<br />
|<br />
| RS<br />
| Tass<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145862RaspberryPi Boards2012-07-03T14:32:15Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1215-A1B17<br />
BR150188A<br />
ASE-TW (e3)</pre><br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145856RaspberryPi Boards2012-07-03T14:24:10Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung <pre>216<br />
K4P2G324ED-AGC1<br />
GA30419V</pre><br />
| SMSC <pre>LAN9512-JZX<br />
B1211-A1B17<br />
BR149884A<br />
CTI-TW</pre><br />
| <pre>n2<br />
220C<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <pre>SE8117733<br />
943-1F</pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| AndrewS<br />
|-<br />
| BS1218<br />
| Samsung<pre>216<br />
K4P26324ED-AGC1<br />
GAL0839V</pre><br />
| SMSC<pre><br />
LAN9512-JZX<br />
B1212-A1B17<br />
BR149884S</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145826RaspberryPi Boards2012-07-03T11:42:47Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145820RaspberryPi Boards2012-07-03T11:42:07Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences are been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145814RaspberryPi Boards2012-07-03T11:41:19Z<p>Mcampos: /* Hardware versions/revisions */ added two boards</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences have been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
5.8 / 3.9<br />
| <pre></pre><br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| antijn<br />
|-<br />
| BS1218<br />
| ?<br />
| ?<br />
| <pre>?</pre><br />
| ?<br />
6.4 / 5.0<br />
| <pre></pre><br />
| <br />
* USB/Keyboard/LAN issues<br />
| <br />
| <br />
| RS<br />
| antijn<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145808RaspberryPi Boards2012-07-03T11:12:38Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences have been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
| SN<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
6-7 / 6-7<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
| SN<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145796RaspberryPi Boards2012-07-03T10:03:29Z<p>Mcampos: /* Hardware versions/revisions */ New board</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences have been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BS12xx<br />
| Samsung<br />
<pre>216 k4p<br />
26324ED<br />
agc1</pre><br />
| SMSC<br />
<pre>lan9512-jzx <br />
b1212 a1b17 <br />
br149884b <br />
cti-tw</pre><br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* OK "has not been stress tested yet"<br />
| <br />
| <br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=145790RaspberryPi Boards2012-07-03T09:57:34Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
These differences have been debated on raspberrypi.org on this thread [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=9524&start=25]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
Note: For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
| Troublesome<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "stable good runner overclocked to 900mhz"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
| Troublesome<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=145556R-Pi Troubleshooting2012-07-02T08:31:53Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about See [[#Troubleshooting_power_problems]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems]].<br />
*There is a bug in the distributed version of bootcode.bin which causes problems with some sdcards. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't). This can also manifest itself as intermittent booting, or only booting when cold.<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply producing too low a voltage. See [[#Troubleshooting_power_problems]].<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
This option can also help when there is no display output at all, the display periodically blanks, or colours are wrong/inverted.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
If you have the [http://www.raspberrypi.org/archives/1435 Wheezy] image (recommended) then try<br />
hdmi_safe=1<br />
<br />
Otherwise, try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. It is best to measure voltage when Pi is busy.<br />
<br />
If your voltage is low, it could be:<br />
* The power supply produces too low a voltage<br />
* The power supply cannot supply enough current, which results in a voltage drop. Make sure Power supply is labelled as at least 700mA. (Some cheap power supplies don't deliver what is labelled).<br />
* The USB power cable is low quality. See: [[On_the_RPi_usb_power_cable]]<br />
* Attached USB devices want too much power. The Pi is only designed for up to 100mA USB devices. A USB device wanting more that that will cause a voltage drop.<br />
Note: keyboards with LCD displays, built in USB hubs, backlights, etc are likely to be problematic. Try to use a basic one. Wifi dongles are also unlikely to work when directly connected. Connect high powered USB devices to a powered USB hub.<br />
<br />
Try booting without HDMI, ethernet or USB deviced plugged in, and see if the voltage improves.<br />
See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (S) and Hynix (H).<br />
<br />
For '''Board ver'''. we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| BS12xx<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|200px|thumb|center]]<br />
|-<br />
| BH12xx<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|200px|thumb|center]]<br />
|}<br />
<br />
<big>See a '''complete list''' and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144776RaspberryPi Boards2012-06-29T17:25:01Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144770RaspberryPi Boards2012-06-29T17:24:13Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| <pre>Se8117t33<br />
12-13 cf</pre><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144764RaspberryPi Boards2012-06-29T17:23:22Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144758RaspberryPi Boards2012-06-29T17:21:03Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| 14<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144752RaspberryPi Boards2012-06-29T17:19:05Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144746RaspberryPi Boards2012-06-29T17:17:43Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
| <blank><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144740RaspberryPi Boards2012-06-29T17:13:14Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
For '''Board ver.''' we used: <model><RAM Maker><production date> (ex.: BS1218 is "Model B, Samsung RAM, 18th week of 2012")<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H<br />
</pre><br />
| T014<br />
? / ?<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144734RaspberryPi Boards2012-06-29T17:05:50Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| Ayxxxx<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| BS1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| BS1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| BH1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| BH1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144728RaspberryPi Boards2012-06-29T17:02:28Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
| <pre>SE8117T33<br />
1213-LF</pre><br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144722RaspberryPi Boards2012-06-29T16:59:51Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144716RaspberryPi Boards2012-06-29T16:53:13Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| F014<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144710RaspberryPi Boards2012-06-29T16:46:35Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
| marcoalexcampos<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
| marcoalexcampos<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144692R-Pi Troubleshooting2012-06-29T15:08:51Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| A12xx<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|200px|thumb|center]]<br />
|-<br />
| B12xx<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|200px|thumb|center]]<br />
|}<br />
<br />
<big>See a '''complete list''' and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144686RaspberryPi Boards2012-06-29T15:07:26Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions that differ on the type RAM used, Samsung (A) and Hynix (B).<br />
<br />
<br />
'''Model A:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
'''Model B:'''<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144680R-Pi Troubleshooting2012-06-29T15:04:18Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
Look for the date of manufacturing printed with the year and week. In this example year (2012) and week (18th):[[File:Date_of_manufacturing.jpg|200px|thumb|right]]<br />
<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|200px|thumb|center]]<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|200px|thumb|center]]<br />
|}<br />
<br />
<big>See a '''complete list''' and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=File:Date_of_manufacturing.jpg&diff=144668File:Date of manufacturing.jpg2012-06-29T14:59:18Z<p>Mcampos: Data of manufacturing
Year: 2012
Week: 18th</p>
<hr />
<div>Data of manufacturing<br />
Year: 2012<br />
Week: 18th</div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144662R-Pi Troubleshooting2012-06-29T14:55:23Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|200px|thumb|center]]<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|200px|thumb|center]]<br />
|}<br />
<br />
<big>See a '''complete list''' and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144656R-Pi Troubleshooting2012-06-29T14:50:28Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|200px|thumb|center]]<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|200px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|200px|thumb|center]]<br />
|}<br />
<br />
<big>See a complete list and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144650R-Pi Troubleshooting2012-06-29T14:37:02Z<p>Mcampos: /* Hardware versions/revisions */ Moved most of the content for it's own page and summarized this section.</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following tables try to help you identify your board for better troubleshooting.<br />
<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! Front<br />
! Back<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
|}<br />
<br />
<big>See a complete list and user feedback here: [[RaspberryPi Boards]]</big><br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144644RaspberryPi Boards2012-06-29T14:23:12Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions:<br />
* A: Samsung RAM<br />
* B: Hynix RAM<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RaspberryPi_Boards&diff=144638RaspberryPi Boards2012-06-29T14:19:44Z<p>Mcampos: New page: RaspberryPi Boards</p>
<hr />
<div>==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions:<br />
* A: Samsung RAM<br />
* B: Hynix RAM<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|-<br />
| B1213<br />
| Hynix<br />
h9tknnn2c0mp landm 1494<br />
| SMSC<br />
lan9512-jzx b1134 a1b17 8r14 77698 sta-sg<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* Works OK<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| B1218<br />
| Hynix<br />
h9trnnn2g0mp lrndm 217a<br />
| SMSC<br />
lan9512-jzy b1215-a1b17 ase-tw<br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* Works OK<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|}</div>Mcamposhttps://elinux.org/index.php?title=RPi_Hub&diff=144632RPi Hub2012-06-29T14:18:33Z<p>Mcampos: /* Hardware & Peripherals */ Added: "List of boards and user feedback"</p>
<hr />
<div>{{TOC right}}{{Template:Hub_Flags}} <!-- please edit template to alter banner and flag display on all hubs --><br />
{{Clear}}<br />
'''The Raspberry Pi wiki pages on this site are a community work - the Raspberry Pi Foundation is not responsible for content on these pages.'''<br />
<br />
==Now shipping to customers==<br />
Premier Farnell and RS Components have started shipping to customers. Congratulations to those at the front of the queue!.<br />
<br />
Work is ongoing to clear the backlog of orders, with both distributors now manufacturing them in serial production. Farnell/Element14 have stated that all people worldwide who ordered their Raspberry Pi through them on or before April 18th should receive theirs by the end of June.<br />
<br />
See the [[RPi Buying Guide | Buying Guide]] on how to order one, or visit the [http://www.raspberrypi.org Raspberry Pi Foundation Home Page]<br />
<br />
==About==<br />
[[File:RpiFront.jpg|300px|thumb|right|The Rpi beta board (model B)]]<br />
<br />
The Raspberry Pi (short: RPi or RasPi) is an ultra-low-cost credit-card sized Linux computer which was conceived with the primary goal of teaching computer programming to children. It was developed by the [http://www.raspberrypi.org Raspberry Pi Foundation], which is a UK registered charity (Registration Number 1129409). The foundation exists to promote the study of computer science and related topics, especially at school level, and to put the fun back into learning computing. The device is expected to have many other applications both in the developed and the developing world ([[RPi_Philosophy|Read more]]).<br />
<br />
Raspberry Pi is manufactured and sold in partnership with the worldwide industrial distributors [http://www.farnell.com/ Premier Farnell/Element 14] and [http://rswww.com/ RS Components].<br />
<br />
* You can get the latest news from the [http://www.raspberrypi.org Foundation Home Page], the [http://twitter.com/intent/user?screen_name=Raspberry_Pi Twitter Feed] or in the [http://www.raspberrypi.org/forum/general-discussion/news-articles-and-blog-posts-about-raspberry-pi forums].<br />
* For Raspberry Pi frequently asked questions see the [[R-Pi FAQ]] or the [http://www.raspberrypi.org/?page_id=8 Raspberry Pi Foundation's FAQ] page.<br />
* Both manufacturing partners provide community areas for more technically focused discussions, articles, FAQs and related information:<br />
:* Premier Farnell: [http://www.element14.com/community/groups/raspberry-pi?view=discussions Element 14 Raspberry Pi Group]<br />
:* RS-Components: [http://www.designspark.com/theme/raspberrypi DesignSpark - Raspberry Pi]<br />
* Products are RoHS, CE, FCC, CTick, CSA and WEEE compliant<ref>http://www.element14.com/community/docs/DOC-44828/l/raspberry-pi-safety-data-sheet</ref>. In common with all Electronic and Electrical products the Raspberry Pi should not be disposed of in household waste. Please contact the distributor from whom you purchased your Raspberry Pi device for details regarding WEEE in your country.<br />
* Price: 25USD Model A, 35USD for Model B, excluding taxes, postage and packaging. For information about availability and shipping see the [[RPi Buying Guide | Buying Guide]].<br />
<br />
<br />
===History===<br />
* Confused about seeing different versions of the board? Visit the [[Rpi HardwareHistory | History of the Raspberry Pi Hardware]] for information about the past versions.<br />
<br />
* RegHardware's very detailed analysis is [http://www.reghardware.com/2011/11/28/raspberry_pi/ well worth a read]. Wikipedia also has [http://en.wikipedia.org/wiki/Raspberry_Pi an entry].<br />
<br />
* Russell Davis (aka forum admin [[ukscone]]) has a series of blog articles recording his perspective of the [http://russelldavis.org/2012/01/14/the-raspberry-pi-part-one/ Raspberry Pi story] in several parts from the beginning.<br />
<br />
* You will often hear mention of the BBC Micro Computer when people talk about the purpose of the Raspberry Pi Foundation. See this article on the [http://www.reghardware.com/2011/11/30/bbc_micro_model_b_30th_anniversary/ history of the BBC Micro Computer].<br />
<br />
* Here's a video from the Financial Times, with three different groups evaluating the raspberry pi: http://video.ft.com/v/1498254373001/Taste-testing-the-Raspberry-Pi (March 2012)<br />
<br />
==Getting Started==<br />
{| border="1" style="background:transparent;"<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa;" |<br />
===[[Buying RPi |Buying Guide]]===<br />
----<br />
Where can I get one and for how much?<br />
* Raspberry Pi can only be purchased via their official distribution partners - detailed information can be found on the [[Buying RPi | RPi Buying Guide]] page.<br />
<br />
* Additional accessories, peripherals and merchandise will also be available through the [http://www.raspberrypi.com/ Raspberry Pi Shop].<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa;" |<br />
<br />
===[[RPi Hardware Basic Setup | Basic Setup]]===<br />
----<br />
First little Raspberry Pi Steps...<br />
* Ensure you have all the [[RPi Hardware Basic Setup#Typical_Hardware_You_Will_Need |equipment]] you need to go with your Raspberry Pi.<br />
* Become familiar with the [[RPi Hardware Basic Setup#Connecting_Together | board layout and connect]] it ready for power up.<br />
* If you have not been provided with a pre-setup SD card you will need to prepare one with your chosen [[RPi_Easy_SD_Card_Setup | Operating System distribution]]<br />
* Note: On the Debian OS after you log in you need to type startx at the prompt to get a graphic desktop.<br />
<br />
* '''Having problems? Try the [http://elinux.org/R-Pi_Troubleshooting Troubleshooting] page.'''<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa;" |<br />
<br />
===[[RPi Beginners | Beginners Guide]]===<br />
----<br />
You've just got your new Raspberry Pi device - what now?<br />
* [[RPi Beginners | Beginners Guide]]<br />
<br />
* Learn about the basics with the [http://h2g2.com/dna/h2g2/A13735596 H2G2 - Introducing the Raspberry Pi] entry.<br />
<br />
* Get started with some basic projects and tutorials:<br />
[http://www.youtube.com/user/RaspberryPiTutorials Raspberry Pi YouTube Tutorials]<br><br />
[http://www.youtube.com/user/RaspberryPiBeginners Another set of video tutorials]<br />
<br />
[[RPi Tutorial Easy GPIO Hardware & Software | Easy GPIO Hardware & Software]] - in-progress at the moment<br />
Example projects/tuts which can be linked from here<br />
(or from within a beginners guide page perhaps):<br />
Setup XBMC media centre<br />
Programming tutorials (Liams YouTube etc)<br />
Easy GPIO (when complete or similar thing).<br />
Also links to some basic linux user guides.<br />
<br />
* Take a look through the [[R-Pi_Hub#Community|Community]] section, which contains a range of beginner and advanced tutorials and guides, as well as groups to help you find like-minded developers.<br />
<br />
|}<br />
<br />
==Resources==<br />
{| border="1" style="background:transparent;"<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
<br />
===[[RPi Hardware|Hardware]] & [[RPi VerifiedPeripherals|Peripherals]]===<br />
----<br />
<br />
*The Model B is more advanced than the Model A - see [[RPi Hardware]].<br />
*The RPi can be plugged into a [[RPi Screens|suitable TV or monitor]].<br />
*The unit will support a range of [[RPi VerifiedPeripherals |USB devices, peripherals and accessories]].<br />
*The [[Rpi Low-level peripherals| Low-level interfaces]] allow the use of optional [[RPi Expansion Boards|Expansion Boards]] in a wide range of projects.<br />
*For more advanced issues including see [[RPi Advanced Setup|Advanced Setup]].<br />
*[[RPi Peripherals|Setting up peripherals - examples/HowTos]]<br />
*[[RaspberryPi Boards|List of boards and user feedback]]<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
<br />
===[[Rpi_Software|Software]] & [[RPi_Distributions|OS Distributions]]===<br />
----<br />
The Raspberry Pi will run a range of OS Distributions and run a variety of software.<br />
* See [[RPi Software|Software]] for an overview, and [[RPi Distributions|OS Distributions]] for supported operating system and pre-configured 'images'.<br />
*Main OS distributions include [[RPi Distributions#Debian_ARM | Debian ARM]], [[RPi Distributions#Fedora | Fedora]], [[RPi Distributions#KidsRuby | KidsRuby]] and [http://puppylinux.org/wikka/Puppi Puppi] from Puppy Linux.<br />
*Advice is also available if you want to [[Rpi_kernel_compilation|compile a kernel]] or [[RPi_Performance|test the Pi's performance]].<br />
*The Raspberry Pi supports a wide range of [[RPi Programming|programming languages]], with many tutorials available.<br />
*Information about installing specific [[RPi_applications|applications]] is available through the link.<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
<br />
===[[RPi Documentation|Documentation]]===<br />
----<br />
Documentation relating to the Raspberry Pi can be found [[RPi Documentation|here]].<br />
<br />
[[RPi DatasheetCategories|Frambozenier.org Documentation Project Datasheets]]<br />
<br />
Example documents which can be linked from here (or sub page):<br />
Official Datasheets<br />
White Papers<br />
User Manuals<br />
Recommended books (perhaps)<br />
<br />
=== R-Pi Troubleshooting ===<br />
<br />
Head over to the [[R-Pi Troubleshooting|troubleshooting page]] for help fixing common problems.<br />
<br />
=== R-Pi Model B 3D CAD files ===<br />
Theses are various 3D CAD Versions in both RAR and ZIP.<br />
<br />
* CATIA V5 RAR http://sdrv.ms/JqdhMb<br />
* CATIA V5 ZIP http://sdrv.ms/LjyLGD<br />
* ProE RAR http://sdrv.ms/KCv1hZ<br />
* ProE ZIP http://sdrv.ms/KCvhxq<br />
* STEP RAR http://sdrv.ms/KCvv7T<br />
* STEP ZIP http://sdrv.ms/JMhv18<br />
* SketchUp http://scc.jezmckean.com/item/581<br />
|}<br />
<br />
==Community==<br />
{| border="1" style="background:transparent;"<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
<br />
===[[RPi Projects |Projects]], [[RPi Guides |Guides]] & [[RPi Tutorials |Tutorials]]===<br />
----<br />
*An important source of information and guides is the [http://www.raspberrypi.org/forum Official Forum].<br />
*Knowledgeable users may want to review and help out with the [[RPi Tasks |Tasks page]].<br />
*Get started by following some of the many [[RPi Tutorials | Tutorials]].<br />
*Common tasks and useful tip are available through the [[RPi Guides | Guides page]]. <br />
*Projects can be found, and added to, on the [[RPi Projects |Projects page]].<br />
<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
<br />
===[[Rpi Education|Schools, Universities, Clubs & Groups]]===<br />
----<br />
*The Raspberry Pi Foundation's aims include encouraging education. Several groups including [http://www.computingatschool.org.uk/ Computing At School] aim to bring Computing Science back into schools.<br />
*Go to the [[Rpi Education|Education Page]] to add your project and find helpful links.<br />
<br />
| style="width:33%; vertical-align:top; border:1px solid #aaa; padding-left:5px;" |<br />
===[[RPi Community |Supporting Communities]]===<br />
----<br />
The [[RPi Community |Raspberry Pi Community]] is steadily growing: <br />
*[http://www.raspberrypi.org/forum The Official Raspberry Pi Forum]<br />
<br />
*[http://www.element14.com/community/groups/raspberry-pi?view=discussions Element 14 Raspberry Pi Group], community site of Premier Farnell<br />
<br />
*[http://www.designspark.com/theme/raspberrypi DesignSpark], community site of RS-Components<br />
<br />
*[http://www.frambozenbier.org/index.php/ 'Frambozenbier' (Raspberry Pi Homebrew)]<br />
<br />
*[http://www.raspberrymod.com/ Raspberrymod] and [http://www.raspberrypiforums.com/forum RPiforums] Un-Official Raspberry Pi Discussion Boards<br />
<br />
*[http://www.raspberrypi-spanish.es Non-official community of Raspberry Pi in spanish language]<br />
<br />
*[http://www.worldofpi.com/ World Of Pi] A forum based on all things Raspberry Pi.<br />
<br />
*[[RPi Community Magazine]] - User contributed eMagazine, get involved!<br />
<br />
*[[RaspberryPi Osdev]] - Hardware specific OS-development community, sitting in freenode.net#raspberrypi-osdev.<br />
<br />
|}<br />
<br />
==About the RPi Wiki==<br />
<br />
'''Do not be afraid to add your bit, content is vital for the wiki to function.'''<br />
<br />
[[File:Rasp_turn_around.gif|200px|thumb|right|A 3D rendering of the Raspberry Pi logo by forum user Antario. [http://www.raspberrypi.org/forum/projects-and-collaboration-general/raspberry-pi-3d-logo-animation Source]]]<br />
This wiki is '''open''' for the community. You are encouraged to sign up and add your own projects, guides and correct anything within it. It is important that users like you continue to add to and grow this wiki, that way others will be able to come and do the same making the wiki a valuable resource. See [[Help:Editing | Help Editing The Wiki]] and the [[Special:Upload | Upload File]] link (on the left sidebar) to reference images.<br />
Have a look at our [[RPi Wiki Best Practice|Guidelines]] and then you are free to go !<br />
<br />
=== Translations ===<br />
<br />
The wiki is being translated into several languages, some of which can be seen on the hub banner above. Current languages include:<br />
<br />
* English: [[R-Pi Hub]]<br />
* French: [[FR:R-Pi Hub]]<br />
* German: [[DE:R-Pi Hub]]<br />
* Greek: [[EL:R-Pi Hub]]<br />
* Hungarian: [[HU:R-Pi Hub]]<br />
* Japanese: [[JP:R-Pi_Hub]]<br />
* Polish: [[PL:R-Pi_Hub]]<br />
* Portugese: [[pt-BR:Raspberry Pi Board]]<br />
* Romanian: [[RO:R-Pi_Hub]]<br />
* Russian: [[RU:RaspberryPiBoard]]<br />
* Spanish: [[ES:R-Pi Hub]]<br />
* Italiano: [[IT:R-Pi Hub]]<br />
* Chinese:[[CH:R-Pi Hub]]<br />
* Hebrew:[[HE:R-Pi Hub]]<br />
<br />
Any help translating would be greatly appreciated. Thank you to those who have already contributed!<br />
<br />
===Admins/Contributors===<br />
<br />
Please see the [[Talk:R-Pi_Hub|Talk]] page for outstanding issues and discussions regarding the RPi Hub and related pages. <br><br />
Also , have look at [[RPi Wiki Best Practice]]. You can discuss the recommendations <br />
[[Talk:RPi Wiki Best Practice | here ]] . <br />
<br />
To share your thoughts, comments, thanks and interesting articles, see our [[RPi Visitor Book |Visitor Book]].<br />
<br />
''Big thanks to elinux.org and their groups for the wiki space and content from which these pages have been grown.''<br />
<br />
=References=<br />
<references/><br />
<br />
{{Template:Raspberry Pi}}<br />
[[Category:RaspberryPi]]</div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144626R-Pi Troubleshooting2012-06-29T13:53:53Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions:<br />
* A: Samsung RAM<br />
* B: Hynix RAM<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
|<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
! Owner<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|<br />
|-<br />
| B1213<br />
| Hynix<br />
<pre>h9tknnn2c0mp<br />
landm 1494</pre><br />
| SMSC<br />
<pre>lan9512-jzx<br />
b1134 a1b17 8r14<br />
77698<br />
sta-sg</pre><br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
<pre>h9trnnn2g0mp<br />
lrndm 217a</pre><br />
| SMSC<br />
<pre>lan9512-jzy<br />
b1215-a1b17<br />
ase-tw</pre><br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
| RaTTuS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|<br />
|}<br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144602R-Pi Troubleshooting2012-06-29T13:43:34Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions:<br />
* A: Samsung RAM<br />
* B: Hynix RAM<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| <br />
| <br />
|<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|-<br />
| B1213<br />
| Hynix<br />
h9tknnn2c0mp landm 1494<br />
| SMSC<br />
lan9512-jzx b1134 a1b17 8r14 77698 sta-sg<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| B1218<br />
| Hynix<br />
h9trnnn2g0mp lrndm 217a<br />
| SMSC<br />
lan9512-jzy b1215-a1b17 ase-tw<br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|}<br />
<br />
==References==<br />
<references><br />
</references></div>Mcamposhttps://elinux.org/index.php?title=R-Pi_Troubleshooting&diff=144596R-Pi Troubleshooting2012-06-29T13:43:22Z<p>Mcampos: /* Hardware versions/revisions */</p>
<hr />
<div>Back to the [[R-Pi Hub|Hub]].<br />
<br />
[[Category:RaspberryPi]]<br />
This page lists the most common problems and suggests some solutions.<br />
<br />
==Power / Start-up==<br />
A good power supply that will supply 5V is vital. There is more information about [[RPi_Hardware#Power|power supplies and troubleshooting]].<br />
===Red power LED does not light, nothing on display===<br />
The power is not properly connected.<br />
<br />
===Red power LED is blinking===<br />
The red power LED should never blink, because it is hard-wired to the 3.3V power supply rail. If it is blinking, as one user has reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7528</ref> it means the 5V power supply is dropping out. Use a different power supply.<br />
<br />
===Red power LED is on, green LED does not flash, nothing on display===<br />
*There would appear to be a bug in the distributed version of bootcode.bin. Try this version: https://github.com/raspberrypi/firmware/blob/234c19de7cbaaf4997671d61df20a05759066295/boot/bootcode.bin. Please let us know if it "fixes" your non-working SD card (or, more importantly, if it doesn't).<br />
*The Raspberry Pi cannot find a valid image on the SD card. Check card is inserted correctly. Check that you have correctly written a Raspberry Pi image to the card. Insert the SD card into a Windows machine and you should see bootcode.bin, loader.bin and start.elf amongst others. Some SD cards work when cold, but not when warm from use<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. See also, [[RPi_VerifiedPeripherals#SD_cards|Known SD Cards]].<br />
*Try with no cables connected except the USB power lead, and SD card inserted. You should see flashing of the OK light for ~20 seconds. If that helps, plug in cables one at a time to identify which is interfering with boot.<br />
*The voltage is too low (below 5 V), try a different power supply and/or cable. The R-Pi needs a supply rated for 700 mA or more. Some supplies labeled as such cannot actually provide their rated current while maintaining 5V. See also, [[#Troubleshooting_power_problems|Power Problems]].<br />
*''(unlikely)'' hardware abuse, for example by connecting a 7 V supply to a 3v3 GPIO output pin<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76503#p76503</ref> or powering up the board after a solder splash shorts some traces<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5096&p=76654#p76654</ref>.<br />
<br />
===Geen LED blinks in a specific pattern===<br />
<br />
With recent firmware, according to [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=8725#p103338 this forum post] the green light will blink in a specific pattern to indicate some types of errors:<br />
<br />
* 3 flashes: <tt>loader.bin</tt> not found<br />
* 4 flashes: <tt>loader.bin</tt> not launched<br />
* 5 flashes: <tt>start.elf</tt> not found<br />
* 6 flashes: <tt>start.elf</tt> not launched<br />
<br />
===Coloured splash screen===<br />
[[File:Debug-screen.jpg]]<br />
<br />
With recent firmware, a coloured splash screen is displayed after firmware (start.elf) is loaded. This should be replaced by linux console a second later.<br />
However if the coloured screen remains, it suggests the kernel.img file is failing to boot. Try replacing it with a known good one.<br />
<br />
===Kernel Panic on boot ===<br />
Text appears on screen, but then hangs with debug messages. This can be caused by USB devices such as keyboards. <br />
Try again with nothing in the USB.<br />
<br />
===Raspberry Pi shuts down soon after booting up===<br />
This is caused by a power supply with too low voltage or too high voltage. <br />
Or it could be the cable. See: [[On_the_RPi_usb_power_cable]]<br />
<br />
===Pi boots sometimes but not always===<br />
With a known good power supply and known good SD card, the R-Pi boots occasionally, but other times shows only a tiny green flicker from the "OK" LED and it fails to start, even with no USB devices and no Ethernet. This has been reported several times<ref>http://www.raspberrypi.org/forum/troubleshooting/will-not-boot-consistently-any-suggestions-before-i-send-my-pi-back</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/booted-once-wont-work-again</ref><br />
<ref>http://www.raspberrypi.org/forum/troubleshooting/possible-fault-pi-boots-sometimes-but-not-always</ref> and remains an open issue. Low voltage or an improper SD card can cause it. Some SD cards will work until they warm up slightly, and then fail<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=79008#p79008</ref>. When exposed to 21 C room temperature the warmest part of an uncased working R-Pi should be 41 C<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=6&t=5900&p=78973#p78973</ref>. The wiki has a [[RPi_VerifiedPeripherals#SD_cards | list of working SD cards]]. Buy from a reliable vendor as it has been [http://www.petapixel.com/2011/05/20/one-third-of-the-sandisk-memory-cards-on-earth-are-counterfeit/ claimed] that 1/3 of all "Sandisk" labelled memory cards are counterfeit.<br />
<br />
==Keyboard / Mouse / Input Devices==<br />
<br />
===R-Pi does not respond to key presses / Keyboard randomly repeats key presses===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power: most will have a label showing the voltage and mA requirements. They should be 5v 100mA each max, any more than this they must be used with a powered USB hub. Try unplugging every USB device except the keyboard (you should also note that some keyboards have built in hubs and can try to draw 150mA (Pi can only handle 100mA per USB slot without a hub)).<br />
Also, use the latest software. Forum user MrEngman [http://www.raspberrypi.org/forum/absolute-beginners/using-a-powered-usb-port-to-power-a-rpi#p76485 reported] some keyboard repeats and wireless hangs until [http://www.raspberrypi.org/downloads upgrading] to the debian6-19-04-2012 kernel, which he reports stable with no problems even with a low [[R-Pi_Troubleshooting#Troubleshooting_power_problems | TP1-TP2 voltage]] of 4.65 - 4.68 volts.<br />
<br />
===Keyboard / Mouse interferes with USB WiFi device===<br />
Connecting a keyboard and/or mouse while a USB WiFi device is connected, may cause one or both devices to malfunction. On April 30 2012, there was a bugfix<ref>https://github.com/raspberrypi/linux/commit/e09244e60881148431ecd016ccc42f1fa0678556</ref> relating to USB sharing between high-speed (eg. WiFi) and full/low-speed devices (eg. keyboard/mouse). User spennig<ref>http://www.raspberrypi.org/forum/troubleshooting/usb-power-hub-wifi/page-4#p74609</ref><ref>http://www.raspberrypi.org/forum/troubleshooting/success-with-kb-mouse-wifi?value=3761&type=8&include=1&search=1</ref> reports this patch did not fix the Mouse/WiFi conflict. On 2012-05-12, user spennig was pleased to confirm that wifi was working with a USB keyboard and mouse, as long as the Raspberry Pi had a good PSU and a powered hub. Even so, some experimentation was needed, e.g. USB mouse connected to the device, and the keyboard and mouse connected to the powered hub. Some experimentation may be necessary to find a working combination; however a good power supply is essential.<br />
<br />
===Wireless Keyboard trouble===<br />
Some wireless keyboards, for example the Microsoft Wireless Keyboard 800 are reported to fail<ref>http://www.raspberrypi.org/forum/troubleshooting/display-and-keyboard-issues-on-a-real-pi#p74816</ref> even though the current drawn by the wireless adaptor is within the R-Pi USB spec limit of 100 mA. This may be a software driver problem.<br />
<br />
===Re-mapping the keyboard with Debian Squeeze===<br />
If different letters appear on-screen from that which you typed, you need to reconfigure you keyboard settings. In Debian, from a command line type:<br />
sudo dpkg-reconfigure keyboard-configuration<br />
Follow the prompts. Then restart your RasPi.<br />'''Or:'''<br /> From the command line type:<br />
sudo nano /etc/default/keyboard<br />
Then find where it says <blockquote>XKBLAYOUT=”gb”</blockquote>and change the gb to the two letter code for your country. [http://www.raspberrypi.org/phpBB3/viewtopic.php?p=78325#p78325]<br />
<br />
===Slow keyboard mapping=== <br />
If you have remapped your keyboard and get a very long delay during the keyboard mapping at startup, type the following once on the command line after you have logged in:<br />
sudo setupcon<br />
<br />
===No USB device works, with known good PS, SD card, KB=== <br />
There has been more than one report<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7533</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p77576</ref><ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5766#p80995</ref> of a R-Pi booting but not getting USB input, using a known-good power supply, SD card, and keyboard. The more common cause for no USB devices working is [[#Troubleshooting_power_problems|low power supply voltage]] from bad PSU, cable, or USB hub, but in this case the problem was no clock signal present at the LAN9512 USB/Ethernet chip "IC3", and the solution was to reflow the solder on the 25 MHz crystal "X1" on the bottom side of the board.<br />
Or return the board for a replacement, but before making this conclusion, confirm known good peripherals. A significant number of <br />
[[RPi_VerifiedPeripherals#USB_Keyboards| USB keyboards]] are not compatible with R-Pi. As of June 1 2012, Eben reported<ref>http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=6822&p=89589&hilit=eben#p89513</ref> that only about 1 in 1000 shipped R-Pi boards have been found to have a hardware fault of any kind.<br />
<br />
== Updating firmware ==<br />
=== Check your firmware version ===<br />
Using the latest firmware version may help various problems with SD card and display compatibility. Check the kernel version with:<br />
uname -a<br />
Linux RPi 3.1.19 #1 PREEMPT Fri Jun 1 14:16:38 CEST 2012 armv6l GNU/Linux<br />
<br />
And the GPU firmware with:<br />
/opt/vc/bin/vcgencmd version<br />
May 31 2012 13:35:03<br />
Copyright (c) 2012 Broadcom<br />
version 317494 (release)<br />
<br />
=== Get the latest firmware version ===<br />
The GPU firmware and kernel can be updated with [https://github.com/Hexxeh/rpi-update Hexxeh's rpi-update tool].<br />
<br />
However this requires the Pi to be successfully booted. With sdcard problems, you may not get that far, so can try a manual udpate.<br />
If you have a Linux machine, rpi-update can be run on that in an offline mode, and will update your sdcard from the Linux machine.<br />
<br />
Otherwise, on a Windows computer, you will see the "/boot" partition appear as the contents of SD card. <br />
You can download the latest GPU firmware version [https://github.com/raspberrypi/firmware/blob/master/boot/start.elf here].<br />
Click on '''view raw''', then save it, and put the new start.elf file on the sdcard replacing the existing one. Similarly, the latest kernel is [https://github.com/raspberrypi/firmware/tree/master/boot/kernel.img here].<br />
After updating these files you should be able to boot. You still need to run rpi-update to update the kernel modules (in /lib/modules) and the GPU libraries (in /opt/vc).<br />
<br />
=== Choosing the right ARM/GPU memory split ===<br />
There is a choice of how the 256M of RAM is divided between the ARM and GPU:<br />
arm224_start.elf : 224M ARM, 32M GPU split : Maximum ARM memory. Good for ARM desktop use. No accelerated video or 3D possible.<br />
arm192_start.elf : 192M ARM, 64M GPU split : Reasonable ARM memory. Simple video (omxplayer) or 3D (quake) is possible. This is the default.<br />
arm128_start.elf : 128M ARM, 128M GPU split : Use this for heavy 3D work, or 3D plus video. Needed for XBMC.<br />
<br />
To switch replace start.elf with one of the above files and reboot. E.g.<br />
sudo cp /boot/arm224_start.elf /boot/start.elf && sudo reboot<br />
<br />
== SD cards ==<br />
<br />
* If you have problems, check you have latest firmware version (described above)<br />
* Some SD cards do not work on the R-Pi, so check the [[RPi_VerifiedPeripherals#SD_cards|list of known SD cards]].<br />
* If you are having problems setting up your SD card you might want to start by erasing it completely - especially if it has been used elsewhere and still contains data / partitions.<br />
** Windows and Mac users can download a formatting tool from the SD Association: https://www.sdcard.org/downloads/formatter_3/<br />
* After writing the image to the SD card, verify that you can see the boot partition when you insert the SD card into your computer. The partition should contain a number of files, including ''start.elf'' and ''kernel.img''. If you do not see these files on the SD card, you have made an error writing the image file.<br />
* If you are manually preparing your SD card on Linux or Mac OS using the ''dd'' command, this operation will completely erase any existing data and partitions. Make sure you write to the whole card (e.g. <tt>/dev/sdd</tt>) and not to an existing partition (e.g. <tt>/dev/sdd1</tt>).<br />
* If you have an sdcard that doesn't work with latest firmware, head over [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=6093 here].<br />
<br />
==Networking==<br />
<br />
===Ethernet connection is lost when a USB device is plugged in===<br />
This is caused by inadequate power. Use a good power supply and a good power cable. Some cheap cables that work with a cell phone, cannot fully power the R-Pi. Some USB devices require a lot of power (>100 mA), so they must be used with a powered USB hub. Some cheap USB hubs suck power from the Raspberry Pi even if a USB power supply is connected.<br />
<br />
===Ethernet connects at 10M instead of 100M===<br />
The LED in the corner of the board labelled "10M" is mislabeled. When that LED is on, the R-Pi is actually connected at 100 Mbps. You can confirm the true transfer rate using a network benchmark such as iperf. You can also read the current network speed with<br />
cat /sys/class/net/eth0/speed<br />
<br />
===Cannot ssh in to Pi===<br />
<br />
In the Debian image, ssh is disabled by default. Boot commands are taken from /boot/boot.rc if that file present. There is an example file named '''boot_enable_ssh.rc''' that enables ssh. So:<br />
<br />
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc<br />
<br />
and reboot should enable ssh. (password as below)<br />
<br />
==Passwords==<br />
===I do not know the password to login===<br />
Please check the page [http://www.raspberrypi.org/downloads http://www.raspberrypi.org/downloads] for the correct username and password for each image.<br />
<br />
<br />
Debian from later dates - pi/raspberry<br />
Debian Feb 17 - pi/suse<br />
Arch - root/root<br />
<br />
===Some programs refuse to accept my password===<br />
While using Debian, some programs may ask for your password but refuse to accept a valid password.<br />
<br />
This is a fault in some Debian images and will be fixed soon. If you are using an image with this fault, enter the following command on the command line.<br />
gconftool-2 --type bool --set /apps/gksu/sudo-mode true<br />
Please enter this command carefully, the spaces are important. The command should be accepted without any response or errors.<br />
<br />
===I don't know the root password===<br />
<br />
There is no root password set by default on Debian. You are expected to do everything through sudo. You can set one with "sudo passwd root" - just make sure you know what you are doing with a root account.<br />
<br />
==Sound==<br />
===Sound does not work with an HDMI monitor===<br />
This is caused by some computer monitors which select DVI mode even if an HDMI cable is connected. This fix may be necessary even if other HDMI devices work perfectly on the same monitor (or TV)!<br />
<br />
Edit the configuration file - see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file:<br />
hdmi_drive=2<br />
<br />
This will force it to select HDMI mode.<br />
<br />
===Sound does not work at all, or in some applications===<br />
Sound is disabled by default because the ALSA sound driver is still "alpha" (not fully tested) on the R-Pi. To try out sound, from the command prompt ''before'' "startx", type<br />
<br />
sudo apt-get install alsa-utils<br />
sudo modprobe snd_bcm2835<br />
sudo aplay /usr/share/sounds/alsa/Front_Center.wav<br />
<br />
By default output will be automatic (hdmi if hdmi supports audio, otherwise analogue). You can force it with:<br />
<br />
sudo amixer cset numid=3 <n><br />
<br />
where n is 0=auto, 1=headphones, 2=hdmi.<br />
<br />
If you are running Debian, try<br />
<br />
cd /opt/vc/src/hello_pi/hello_audio<br />
make<br />
./hello_audio.bin<br />
<br />
to test analogue output. And<br />
<br />
./hello_audio.bin 1<br />
<br />
to test HDMI.<br />
<br />
Also note that you may have to add your user to the 'audio' group to get permission to access the sound card.<br />
<br />
==Display==<br />
===Startx fails to start===<br />
If you just get errors instead of a desktop when typing<br />
startx<br />
you may be out of storage space on the SD card. By default there are only a few hundred MB free in the 2 GB main partition, which can quickly fill up if you download files. Make sure there is some space free (gparted can expand a partition, if the SD card is > 2GB). Also, installing some software may incorrectly create or modify a .Xauthority file in your home directory, causing startx to fail, according to [http://www.raspberrypi.org/forum/troubleshooting/startx-fails-worked-yesterday this thread]. Temporarily renaming, moving, or deleting that file may fix the problem.<br />
<br />
===Video does not play or plays very slowly===<br />
The only hardware-accelerated video player is in the [http://www.raspberrypi.org/forum/general-discussion/openelec-meets-raspberry-pi-part-1-xbmc XBMC distribution] and its command line variant [[omxplayer]]. H264 is the only hardware-accelerated codec, for playback. No hardware encoding is supported. Additional codecs were not purchased as licensing fees would have increased the R-Pi's price.<br />
<br />
===Can only get 800x480 resolution in LXDE (Arch linux)===<br />
Known issue with distro package as of 17th April 2012 - there's some missing boot config information. Creating a suitable cmdline.txt fixes it - type the following at the Raspberry Pi command line:<br />
<br />
<pre><br />
sudo echo "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" >/boot/cmdline.txt<br />
</pre><br />
<br />
===Big black borders around small image on HD monitors===<br />
<br />
Out of the box, R-Pi graphics don't necessarily fill the whole screen. This is due to something called "Underscan", and it can be fixed easily.<br />
<br />
Note: the best solution is to disable overscan in display menu options (it may be called "just scan", "screen fit", "HD size", "full pixel", "unscaled", "dot by dot", "native" or "1:1"), then use the disable_overscan=1 option.<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following lines to the configuration file...<br />
<br />
If your display has no overscan:<br />
<br />
<pre><br />
<br />
disable_overscan=1<br />
<br />
</pre><br />
<br />
or if your display has some overscan:<br />
<br />
<pre><br />
<br />
overscan_left=-20<br />
<br />
overscan_right=-20<br />
<br />
overscan_top=-20<br />
<br />
overscan_bottom=-20<br />
<br />
</pre><br />
<br />
Making the R-Pi graphics fill the screen is a matter of experimenting with the numbers you put in the config.txt file. Change the numbers – try jumps of 5 or 10 at a time. Bigger negative numbers reduce the black borders (so -40 means less black border than -20). The numbers do not all have to be the same; you can use this feature to centre the display on the screen.<br />
<br />
===Writing spills off the screen on HD monitors===<br />
<br />
Out of the box, R-Pi graphics may be larger than the 1080p (ie Full HD) screen. This is due to something called "Overscan", and it can be fixed easily by creating a simple text file on the R-Pi SD card by using Notepad on your PC.<br />
<br />
Follow the instructions in the section "Big black borders around small image on HD monitors", but use positive numbers for the overscan settings, for example<br />
<pre><br />
<br />
overscan_left=20<br />
<br />
overscan_right=20<br />
<br />
overscan_top=20<br />
<br />
overscan_bottom=20<br />
<br />
</pre><br />
<br />
===Interference visible on a HDMI or DVI monitor===<br />
This may be caused by loss of signal on long video cables. The signal level may be increased by changing a configuration parameter.<br />
<br />
[[File:RPi_HDMI_interference.jpg|600px]]<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
config_hdmi_boost=4<br />
<br />
You may experiment with different values of config_hdmi_boost. Value 1 is used for very short cables, value 7 is used for very long cables.<br />
<br />
===No HDMI output at all===<br />
First make sure the display is powered on and switched to the right input before booting Pi.<br />
<br />
Try adding the following line to the configuration file (similar to interference case above)<br />
config_hdmi_boost=4<br />
<br />
Your monitor/cable may not be asserting the hotplug signal. You can override this with:<br />
hdmi_force_hotplug=1<br />
<br />
Also [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=28&t=7513 try] the following video options:<br />
hdmi_group=2<br />
hdmi_mode=4<br />
which resolved an issue with DVI monitor reporting "input signal out of range"<br />
<br />
As a last resort, try deleting (rename to keep backup) config.txt from the SD card.<br />
<br />
===Composite displays only back and white or no image===<br />
Remember, the output display will be HDMI if detected, and composite if not. Make sure there isn't a HDMI cable connected when you are wanting composite output.<br />
<br />
We default to NTSC output. Most TVs will show an image with that, but if not:<br />
<br />
Edit the configuration file, see the instructions at [[R-Pi_ConfigurationFile]].<br />
<br />
Add the following line to the configuration file<br />
sdtv_mode=2<br />
<br />
(You can try other values: 0 is NTSC, 1 is Japanese NTSC, 2 is PAL, 3 is Brazilian PAL)<br />
<br />
==GPIO==<br />
Remember that the GPIO pins are 3.3V logic level only, and are <strong>NOT</strong> 5V tolerant.<br />
<br />
If you momentarily shorted the two end GPIO pins together (+3.3V and +5V), or a supply pin to ground, and the Pi appears to be dead, don't panic. The input polyfuse may have tripped. It is self-resetting after it cools down and the polymer re-crystallizes, which can take several hours. Set the Pi aside and try again later.<br />
<br />
==General==<br />
===The time is incorrect===<br />
If the clock is off by a series of hours, in the command line type:<br />
sudo dpkg-reconfigure tzdata<br />
<br />
The R-Pi has no real-time clock, so unless it can access a timeserver over the network at boot, or time is manually entered by the user, the time/date will restart counting from the last logged time in the previous session.<br />
<br />
===A part broke off===<br />
<br />
The silver cylinder near the microUSB power input is a 220 uF capacitor ("C6" on schematic). It sticks up and due to the small surface-mount pads, it is easy to break off; several people have done so. This is a power supply filter capacitor which reduces any noise and spikes on the input +5V power. If you like, you can solder it back on, or just leave it off. If you do solder it back on, take care to observe the correct polarity with the black stripe towards the board edge. This part, C6 is a "just in case" component which is good design practice to include, but [http://www.raspberrypi.org/phpBB3/viewtopic.php?f=2&t=4926| as it turns out] most power supplies still work OK without this part installed. This part is also [http://elinux.org/RPi_Hardware#Capacitor_C6 discussed here].<br />
<br />
==Troubleshooting power problems==<br />
If you think you have a problem with your power supply, it is a good idea to check the actual voltage<br />
on the Raspberry Pi circuit board. Two test points labelled TP1 and TP2 are provided on the circuit board<br />
to facilitate voltage measurements.<br />
<br />
Use a multimeter which is set to the range 20 volts DC (or 20v =). You should see a voltage between 4.75 and 5.25 volts. Anything outside this range indicates that you have a problem with your power supply or your power cable.<br />
<br />
If you have not used a multimeter before, see these [[http://www.sparkfun.com/tutorials/202 basic instructions]]<br />
<br />
Note: Even if the multimeter shows the correct voltage, you may have some power supply problems. A multimeter only displays the average voltage. If there are very short-lived dips or spikes in the voltage, these will not be shown by the multimeter. <br />
<br />
Note: Onboard voltage drops as current draw increases. During boot-up the R-Pi draws less current than when it is running normally. Attached USB devices can put a large load on the supply. Some parts, eg. a WiFi adaptor use more current when configured and active, than before configuration. Some devices can source current into the R-Pi (USB powered hub, TV via HDMI port). See also: [[RPi_Hardware#Power_Supply_Problems| Power Supply Problems]]<br />
<br />
[[File:RPI_Test_Points.JPG|400px]] [[File:Voltmeter.JPG|250px]]<br />
<br />
==Hardware versions/revisions==<br />
Several different boards have been found probably from different assembly lines, and the following table tries to help you identify your board for better troubleshooting.<br />
<br />
For what we can see for model B boards there are mainly two versions:<br />
* A: Samsung RAM<br />
* B: Hynix RAM<br />
<br />
Model A:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|<br />
|}<br />
<br />
<br />
Model B:<br />
{| border="1" class="wikitable"<br />
|-<br />
! Board<br />
ver.<br />
! RAM<br />
Chip <br />
! USB<br />
Chip <br />
! C6<br />
! F1 / F2<br />
Ref. & Ohm<br />
! RG2 <br />
! Reported issues / Feedback<br />
! Front<br />
! Back<br />
! Seen from<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EEZ</pre><br />
| ?<br />
? / ?<br />
| <br />
|<br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| A1215<br />
| Samsung<br />
| SMSC<br />
| <pre>n2<br />
220<br />
UD</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-A1219-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-A1219-Back.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1218<br />
| Samsung<br />
| SMSC<br />
| <pre>220<br />
16V<br />
EE5</pre><br />
| T014<br />
3.8 / 4.4<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_A-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_A-Back.JPG|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| A1219<br />
| Samsung<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| Farnell<br />
|-<br />
| B1213<br />
| Hynix<br />
| SMSC<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| 14<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-Board_C-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_C-Back.jpg|100px|thumb|center]]<br />
| <br />
|-<br />
| B1213<br />
| Hynix<br />
h9tknnn2c0mp landm 1494<br />
| SMSC<br />
lan9512-jzx b1134 a1b17 8r14 77698 sta-sg<br />
| <pre>n2<br />
220c<br />
UD</pre><br />
| ?<br />
? / ?<br />
| <blank><br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1213-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1213-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| Farnell<br />
|-<br />
| B1218<br />
| Hynix<br />
h9trnnn2g0mp lrndm 217a<br />
| SMSC<br />
lan9512-jzy b1215-a1b17 ase-tw<br />
| <pre>2e<br />
220<br />
16h</pre><br />
| ?<br />
? / ?<br />
| Se8117t33<br />
12-13 cf<br />
|<br />
* "pretty stable"<br />
| [[File:RaspberryPi-B1218-Front-RaTTuS.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back-RaTTuS.jpg|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2E<br />
220<br />
16H</pre><br />
| 14<br />
8.2 / 5.9<br />
|<br />
| <br />
* USB/Keyboard/LAN power down[http://www.raspberrypi.org/phpBB3/viewtopic.php?p=109984#p109984]<br />
*<br />
| [[File:RaspberryPi-Board_B-Front.JPG|100px|thumb|center]]<br />
| [[File:RaspberryPi-Board_B-Back.JPG|100px|thumb|center]]<br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>2B<br />
220<br />
16H</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| <br />
| <br />
| RS<br />
|-<br />
| B1218<br />
| Hynix<br />
| SMSC<br />
| <pre>?</pre><br />
| ?<br />
? / ?<br />
|<br />
| <br />
* None<br />
| [[File:RaspberryPi-B1218-Front.jpg|100px|thumb|center]]<br />
| [[File:RaspberryPi-B1218-Back.jpg|100px|thumb|center]]<br />
| RS<br />
|}<br />
<br />
==References==<br />
<references><br />
</references></div>Mcampos