IBM x3690 X5 Service Manual page 93

Table 6. Light path diagnostics panel LEDs (continued)
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, "Parts listing", in the Problem Determination and Service Guide to determine which components
are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If a action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
LED Description
BRD (Continued) An error has occurred on the
system board.
Action
If the 12 V channel C error LED is lit, complete the following
steps:
1. Turn off the server and disconnect the power from the
server.
2. Remove all installed PCI Express adapters.
3. Restart the server to see whether the problem remains.
4. Reinstall each device that you removed in step 2 one at a
time, starting the server each time, to isolate the failing
device.
5. Replace any failing device.
6. (Trained service technician only) Replace the system
board.
If the 12 V channel D error LED is lit, complete the following
steps:
1. Turn off the server and disconnect the power from the
server.
2. Remove all installed PCI Express adapters, hard disk
drives or solid state drives, and drive backplanes.
3. Restart the server to see whether the problem remains.
4. Reinstall each device that you removed in step 2 one at a
time, starting the server each time, to isolate the failing
device.
5. Replace any failing device.
6. (Trained service technician only) Replace the system
board.
(Continued on the next page.)
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Chapter 3. Diagnostics