IBM 8670M1X User Manual page 41

Diagnostic panel LEDs
The following illustration shows the LEDs on the diagnostics panel inside the server.
See "Light Path Diagnostics table" on page 34 for information about identifying
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
2. The server supports a maximum of three PCI buses.
3. See the documentation that comes with the system-management software for
Light Path
1
Diagnostics™
POWER
SUPPLIES
2
VRM CPU
NON
MEMORY
REDUNDANT
OVER SPEC DASD
NMI A
PCI
ISMP B
BUS
CPU/VRM
C
MISMATCH
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 shut down due to a system overload 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 microprocessor or VRM mismatch.
Error occurred on an adapter in PCI slot 5.
System temperature exceeded maximum rating.
orientation on the LED panel.
more information about the service processor.
REMIND
FAN
TEMP
33
Chapter 3. Diagnostics