IBM XSERIES 255 TYPE 8685, Руководство по техническому обслуживанию и ремонту

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Notes:
1. If a diagnostics panel LED is lit and the information LED panel system-error
LED is off, there is probably an LED problem. Run LED diagnostics.
2. To locate the LEDs on the system board, see “System-board LED locations” on
page 47.
3. Check the System Error Log for additional information before replacing a FRU.
4. The DIMM error LEDs, microprocessor error LEDs, and VRM error LEDs turn
off when the system is turned off.
Note: See “System” on page 160 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.
Chapter 6. Symptom-to-FRU index
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