Light Path Diagnostics Panel - IBM eServer 342 xSeries User Reference Manual

Light Path Diagnostics panel

The following illustration identifies the individual LEDs on the Light Path Diagnostics
panel.
Table 3. Diagnostics panel LEDs.
34
IBM xSeries 342: User's Reference
MEM PS1
CPU PS2
PCI A PS3
PCI B NON
PCI C OVER
VRM NMI
DASD TEMP
SP FAN
REMIND
Diagnostic
panel LED
PS1 Power supply 1 failure.
PS2 Power supply 2 failure if installed.
PS3 Not used.
NON Server power supplies are no longer redundant (applicable only with
redundant power feature).
OVERSPEC Overspecification. The system has exceeded the power capabilities (max
rating) of the installed power-supply units.
NMI Nonmaskable interrupt occurred.
TEMP System temperature exceeded maximum limit. Other LEDs will be on to
identify the location of the temperature problem.
FAN A fan failed or is operating slowly.
MEM Memory failure. One or more dual inline memory modules (DIMMs) failed.
CPU One or both microprocessors failed or one is seated in wrong connector.
PCI A Error occurred on an adapter in PCI slot 1, or one of the PCI devices
integrated on the system board.
PCI B Error occurred on an adapter in PCI slots 2 or 3, or one of the PCI devices
integrated on the system board.
PCI C Error occurred on an adapter in PCI slots 4 or 5, or one of the PCI devices
integrated on the system board.
SP System management subsystem detected an error.
VRM Error on voltage regulator module.
DASD The SCSI backplane (if any) or a device connected to a SCSI bus failure.
Description
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