IBM 8685 Hardware Maintenance Manual - Page 143

Run the Configuration/Setup Utility program, Check System Error log.

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Page 143 highlights

Note: See "System" on page 162 to determine which components should be replaced by a field service technician. Diagnostics panel LED FRU/action NMI on 1. If PCIx LED is also on, follow that action. 2. If PCIx LED is not on, restart the server. 3. Check the System Error Log. ISMP on 1. Unplug the server for 30 seconds, and then retry. 2. Reflash or update firmware for ISMP, BIOS. 3. System board. LOG on 1. System Error Log is 75% full; clear the log. 2. PFA alert; check log for failure; clear PFA alert; remove ac power for at least 20 seconds, reconnect, then turn on the system. 3. Run Light Path Diagnostics. PCIA on 1. Check System Error log. 2. Remove all adapters and replace one at a time until failing adapter is identified. 3. System board. PCIB on 1. Check System Error log. 2. Remove all adapters and replace one at a time until failing adapter is identified. 3. System board. PCIC on 1. Check System Error log. 2. Remove all adapters and replace one at a time until failing adapter is identified. 3. System board. PCID on 1. Check System Error log. 2. Remove all adapters and replace one at a time until failing adapter is identified. 3. System board. DASD on (The LED located next to 1. Be sure the fans are operating correctly and the airflow is good. the drive bay that the failing drive is installed in is lit. Check the amber 2. If installed, reseat SCSI cables between SCSI backplane and the system drive LED for the failing hard drive.) board. 3. Failing hard disk drive. 4. SCSI backplane. PS1 on 1. Check the dc good LED on power supply 1. If it is off, replace power supply 1. 2. Power backplane. PS2 on 1. Check the dc good LED on power supply 2. If it is off, replace power supply 2. 2. Power backplane. CPU on (The LED next to the failing CPU is on.) 1. Run the Configuration/Setup Utility program to verify that all CPUs have identical cache sizes and types, clock speeds and clock frequencies. 2. Microprocessor. 3. System board. Chapter 6. Symptom-to-FRU index 133

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Note:
See “System” on page 162 to determine which components should be replaced by a field service technician.
Diagnostics panel LED
FRU/action
NMI on
1.
If PCI
x
LED is also on, follow that action.
2.
If PCI
x
LED is not on, restart the server.
3.
Check the System Error Log.
ISMP on
1.
Unplug the server for 30 seconds, and then retry.
2.
Reflash or update firmware for ISMP, BIOS.
3.
System board.
LOG on
1.
System Error Log is 75% full; clear the log.
2.
PFA alert; check log for failure; clear PFA alert; remove ac power for at
least 20 seconds, reconnect, then turn on the system.
3.
Run Light Path Diagnostics.
PCIA on
1.
Check System Error log.
2.
Remove all adapters and replace one at a time until failing adapter is
identified.
3.
System board.
PCIB on
1.
Check System Error log.
2.
Remove all adapters and replace one at a time until failing adapter is
identified.
3.
System board.
PCIC on
1.
Check System Error log.
2.
Remove all adapters and replace one at a time until failing adapter is
identified.
3.
System board.
PCID on
1.
Check System Error log.
2.
Remove all adapters and replace one at a time until failing adapter is
identified.
3.
System board.
DASD on
(The LED located next to
the drive bay that the failing drive is
installed in is lit. Check the amber
drive LED for the failing hard drive.)
1.
Be sure the fans are operating correctly and the airflow is good.
2.
If installed, reseat SCSI cables between SCSI backplane and the system
board.
3.
Failing hard disk drive.
4.
SCSI backplane.
PS1 on
1.
Check the dc good LED on power supply 1. If it is off, replace power
supply 1.
2.
Power backplane.
PS2 on
1.
Check the dc good LED on power supply 2. If it is off, replace power
supply 2.
2.
Power backplane.
CPU on
(The LED next to the
failing CPU is on.)
1.
Run the Configuration/Setup Utility program
to verify that all CPUs have
identical cache sizes and types, clock speeds and clock frequencies.
2.
Microprocessor.
3.
System board.
Chapter 6. Symptom-to-FRU index
133