PCI
Bus
Power
Supply
1
System board connector
2
Diskette drive connector
The meanings of these LEDs are as follows:
CPU
Memory
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 2
Power supply 3
FAN
DASD
NMI
SP Bus
Event Log
NON RED
OVER SPEC
TEMP
CPU
Memory
A B C D
1 2 3 4
Fan
Microprocessor fault
Memory fault
Power supply number 1 failure
Power supply number 2 failure
Power supply number 3 failure
Fan failure
Hard disk drive fault
Nonmaskable interrupt
Service processor failure
Not implemented at this time.
Nonredundant power mode
Over specification
System temperature failure
DASD
NMI
SP Bus
Event Log
Non Red
Over Spec
Temp
Diagnostics
21