IBM eserver xSeries 350, User Reference Manual

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108
IBM® xSeries 350: User’s Reference
Diagnostic panel LEDs
The following illustration shows the LEDs on the diagnostics panel inside the server.
See “Light Path Diagnostics” on page 109 for information on identifying problems
using these LEDs.
The meanings of these LEDs are as follows:
NMI Nonmaskable interrupt
SP Bus
Service processor failure
PCI Bus A (PCIA) PCI bus A fault
PCI Bus B (PCIB) PCI bus B fault
PCI Bus C (PCIC) PCI bus C fault
DASD Hard disk drive fault
Memory Memory fault
CPU Microprocessor fault
FAN Fan failure
TEMP System temperature failure
NON RED Nonredundant power mode
OVER SPEC Over specification
Power supply 1 Power supply number 1 failure
Power supply 2 Power supply number 2 failure
Power supply 3 Power supply number 3 failure
Notes:
1. The server does not support replaceable voltage regulator modules (VRMs).
2. The server supports a maximum of three PCI buses.
System board connector
Diskette drive connector
CPU
Memory
Fan
A B C
1 2 3
DASD
NMI
SP Bus
Event Log
Non Red
Over Spec
Temp
PCI
Bus
Power
Supply