v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the Problem Determination and Service Guide on the IBM System x Documentation CDto determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Lit light path
diagnostics LED with
the system-error or
information LED also
lit Description Action
SERVICE
PROCESSOR BUS
There is a fault in the Remote
Supervisor Adapter II SlimLine.
1. Reseat the Remote Supervisor Adapter II SlimLine.
2. Update the firmware for the Remote Supervisor
Adapter II SlimLine (see the Problem
Determination and Service Guide on the IBM
System x Documentation CD).
3. Replace the Remote Supervisor Adapter II
SlimLine.
MEMORY Memory failure.
Note: The error LED on the DIMM
is also lit.
1. Remove the DIMM that has the lit error LED; then,
press the light path diagnostics button on the
DIMM to identify the failed DIMM.
2. Reseat the DIMM.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. DIMM
b. (Trained service technician only) System board
DASD/RAID A hard disk drive, integrated SAS
controller, or integrated RAID error
has occurred.
Notes:
1. The error LED on the failing
hard disk drive is also lit.
2. Check the BMC event log for a
ServeRAID-8k or RAID error.
1. Reinstall the removed drive.
2. Reseat the following components:
a. Failing hard disk drive
b. SAS hard disk drive backplane
c. SAS signal and power cables
d. System board
e. ServeRAID-8k
3.
Replace the components listed in step 2, one at a
time, in the order shown, restarting the server each
time.
FAN A fan has failed or has been
removed.
Note: A failing fan can also cause
the TEMP LED to be lit.
1. Reinstall the removed fan.
2. If an individual fan LED is lit, replace the fan.
3. (Trained service technician only) Replace the
system board.
PCI BUS A PCI adapter has failed.
1. See the BMC log or the system-error log (see the
Problem Determination and Service Guide on the
IBM System x Documentation CD).
2. Reseat the failing adapter.
3. Replace the following components, one at a time,
in the order shown, restarting the server each time:
a. Failing adapter
b. (Trained service technician only) System board
Chapter 2. Installing optional devices 19
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