IBM 866631Y - Netfinity 7100 - 8666 Hardware Maintenance Manual page 133

Notes:
1. To locate the LEDs on the processor board see "Processor board component
locations" on page 41.
2. Check the System Error Log for additional information before replacing a FRU.
3. It may be necessary to view the system error log from a remote connection,
such as MOST.
4. The memory card DIMM error LEDs, processor error LEDs, and VRM error
LEDs turn off when the system is powered down.
Diagnostic Panel FRU/Action
LED
All LEDs off (Check
1. System Error Log is 75% full; clear the log.
System Error Log for
2. Bad, missing or mis-installed processor terminator; remove and
error condition, then
clear System Error
3. PFA alert; check Netfinity log for failure; clear PFA alert;
Log when the
problem is found.)
4. If failure reading I2C device, check devices on bus "X"; see "I2C
5. Run Information Panel diagnostics.
CPU LED on (The
1. Processor 1, 2, 3, or 4.
LED next to the
2. Processor/PCI Board.
failing CPU should be
on.)
VRM LED on (The
1. Corresponding voltage regulator module.
LED next to the
2. Processor/PCI Board.
failing VRM should
be on.)
DASD LED on
1. Be sure the fans are operating correctly and the air flow is
(Check amber drive
LED for a failing hard
2. Failing drive.
drive.)
3. SCSI Backplane.
FAN LED on
1. Check individual fan LEDs.
2. Replace respective fan.
3. Fan Cable.
4. Processor/PCI Board.
5. I/O Legacy Board.
6. Power Backplane Board.
MEM LED on (The
1. Failing DIMM(s) in slot J1-J16.
LED next to the
2. Memory Card.
failing DIMM is on.)
3. Processor/PCI Board.
NMI LED on
1. Reboot the system.
2. Check the System Error Log.
PCI A LED on
1. PCI Card in slot 1 or 2.See "Processor board component
2. Remove all PCI adapters from slots 1-6.
3. Processor/PCI Board
4. I/O Legacy Board.
reinsert terminator.
remove AC power for at least 20 seconds, reconnect, then
power up system.
bus fault messages" on page 141.
good.
locations" on page 41.
123
Symptom-to-FRU index