IBM eServer 342 xSeries, User Reference Manual

Page: 48 / 160

34
IBM xSeries 342: User’s Reference
Light Path Diagnostics panel
The following illustration identifies the individual LEDs on the Light Path Diagnostics
™
panel.
Diagnostic
panel LED
Description
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.
Table 3. Diagnostics panel LEDs.
MEM
CPU
PCI A
PCI B
PCI C
VRM
DASD
SP
PS1
PS2
PS3
NON
OVER
NMI
TEMP
FAN
REMIND