IBM Xseries 345 8670 Maintenance Manual page 43

problems using these LEDs.
The Light Path Diagnostics LEDs are described in the following table.
Table 4. Diagnostics panel LEDs
Diagnostic panel LED
POWER SUPPLY 1
POWER SUPPLY 2
VRM
CPU
NON-RED
MEMORY
OVER SPEC
DASD
NMI
PCI BUS A
ISMP
PCI BUS B
FAN
CPU/VRM MISMATCH
PCI BUS C
TEMP
Notes:
1. Depending on your server model, these items might appear in a different
ISMP
Description
The power supply in bay 1 failed.
The power supply in bay 2 failed.
Error on microprocessor voltage regulator module (VRM).
One or both microprocessors failed, or one is seated in the wrong socket.
Server power supplies are no longer redundant (applicable only with redundant power
feature).
Memory failure. One or more dual inline memory modules (DIMMs) failed.
The system has shutdown due to a system over load condition.
The SCSI backplane or a device connected to a SCSI bus failure.
Nonmaskable interrupt occurred.
Error occurred on an adapter in PCI-X slots 1 or 2 or one of the integrated PCI
devices on the system board.
Integrated System management detects an internal error.
Error occurred on an adapter in PCI-X slots 3 or 4.
A fan (1, 2, 3, 4, 5, 6, 7, or 8) failed or is operating slowly.
The service processor detected a CPU or VRM mismatch.
Error occurred on an adapter in PCI slot 5.
System temperature exceeded maximum rating.
orientation on the LED panel.
Speaker
Diskette
connector
Remind
button
Chapter 3. Diagnostics
33