IBM 8682 Diagnostic panel LEDs, Microprocessor fault, Memory fault, PCI Bus A PCIA, Dasd

Diagnostic panel LEDs

The following illustration shows the LEDs on the diagnostics panel inside the server. See Table 1 on page 19 for information on identifying problems using these LEDs.

CPU	DASD
Memory
	NMI
PCI	SP Bus
Bus A B C D	Event Log
Power	Non Red
Supply 1 2 3 4	Over Spec
Fan	Temp

System board connector

Diskette drive connector

The meanings of these LEDs are as follows:

CPU	Microprocessor fault
Memory	Memory fault
PCI Bus A (PCIA)	PCI bus A fault
PCI Bus B (PCIB)	PCI bus B fault
PCI Bus C (PCIC)	PCI bus C fault
PCI Bus D (PCID)	Not implemented at this time
Power supply 1	Power supply number 1 failure
Power supply 2	Power supply number 2 failure
Power supply 3	Power supply number 3 failure
FAN	Fan failure
DASD	Hard disk drive fault
NMI	Nonmaskable interrupt
SP Bus	Service processor failure
Event Log	Not implemented at this time.
NON RED	Nonredundant power mode
OVER SPEC	Over specification
TEMP	System temperature failure

18IBM xSeries 350 Type 8682: Hardware Maintenance Manual