IBM x3690 X5 Service Manual page 91

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
DASD A hard disk drive has failed or is
missing.
RAID Reserved.
BRD An error has occurred on the
system board.
Action
1. Check the LEDs on the hard disk drives for the drive
with a lit status LED and reseat the hard disk drive.
2. Make sure that the cables are correctly connected to the
hard disk drive backplane.
3. For more information, see "Hard disk drive problems" on
page 52.
4. If the error remains, replace the following components in
the order listed, restarting the server after each:
a. Replace the hard disk drive.
b. Replace the hard disk drive backplane.
5. If the error remains, replace the following components
one at a time, in the order listed, restarting the server
after each:
a. Replace the hard disk drive.
b. Replace the hard disk drive backplane.
6. If the problem remains, go to http://www.ibm.com/
systems/support/supportsite.wss/
docdisplay?brandind=5000008&lndocid=SERV-CALL.
1. Check the LEDs on the server and the front of the MAX5
(if installed).
2. Check the LEDs on the system board to identify the
component that caused the error. The BRD LED can be lit
due to any of the following reasons:
v Battery
v Missing PCI riser-card assembly
v 12V channel fault
v Failed system board
v Failed MAX5 system-board tray (if attached
3. Check the system-event log for information about the
error.
4. Replace any failed or missing replacement components,
such as the battery or PCI riser-card assembly.
5. (Trained service technician only) replace the server system
board.
6. Replace the MAX5 system-board tray.
Continued on the next page.
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Chapter 3. Diagnostics