IBM 88371RU, Maintenance And Troubleshooting Manual

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Note: See “System replaceable units” on page 122 to determine which components should be replaced by a field
service technician.
Diagnostics panel LED FRU/action
FAN (fan: lit=failure or slow fan
operation (LED at failing fan is on);
flashing=invalid fan configuration))
Note: The TEMP LED might also
be lit.
1. Make sure fans are installed correctly.
2. Failing fan.
3. Fan backplanes.
4. System board.
TEMP (temperature exceeded a
threshold level)
Note: The FAN LED might also be
lit.
1. Ambient temperature must be within normal operating specifications;
see “Features and specifications” on page 3.
2. Make sure that all fans are operating correctly and the airflow is not
blocked.
3. System board.
BRD
(battery fault or system board error)
1. Check error LEDs on system board to identify faulty component.
2. Check system-error log and BMC log.
3. Replace battery.
4. System board.
PCI A (error has occurred on PCI
bus A)
1. PCI-Express adapter in slot 2.
2. System board.
PCI B (error has occurred on PCI
bus B)
1. PCI/PCI-X adapter in slots 1 or 2
2. SCSI backplane
3. System board
PCI C (error has occurred on PCI
bus C)
1. Verify that the Ethernet controllers are working correctly.
2. Check system-error log and BMC log.
3. System board.
Chapter 6. Symptom-to-FRU index
95