IBM xSeries 346 Hardware Maintenance Manual And Troubleshooting Manual page 94

LED Problem
MEM When the LED is on, a memory error
has occurred. When the LED flashes,
an invalid DIMM configuration has
occurred.
NMI A machine check error has occurred.
S ERR A soft error has occurred.
SP The service processor has failed.
DASD A hard disk drive error has occurred.
RAID A RAID controller error has occurred.
FAN When the LED is lit, a fan has failed or
is operating too slowly. A failing fan can
also cause the TEMP LED to be lit.
When the LED flashes, an invalid fan
configuration has occurred.
TEMP The system temperature has exceeded
a threshold level.
BRD An error has occurred on the system
board.
PCI A An error has occurred on a PCI bus.
PCI B
PCI C
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xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide
Action
Replace the failing DIMM, which is indicated by the lit LED on
the system board. If a configuration error has occurred, make
sure the DIMMs are installed correctly.
Check the system-error log and BMC log for information about
the error.
Check the system-error log and BMC log for information about
the error.
Remove ac power from the server; then, reconnect the server
to ac power and restart the server.
If the problem remains, replace the system board.
Check the LEDs on the hard disk drives and replace the
indicated drive.
Check the system-error log and BMC log for information about
the error. See the documentation that comes with the RAID
controller.
Replace the failing fan, which is indicated by the lit LED. If a
configuration error has occurred, make sure that the fans are
installed correctly.
v Determine whether a fan has failed. If it has, replace it.
v Make sure that the room temperature is not too high. See the
User's Guide on the IBM xSeries Documentation CD for
temperature information.
v Make sure that the air vents are not blocked.
v Check the LEDs on the system board to identify the
component that is causing the error.
v Check the system-error log and BMC log for information
about the error.
v Check the system-error log and BMC log for information
about the error.
v If you cannot isolate the failing adapter through the
information in the system error log or BMC log, remove one
adapter at a time from the failing PCI bus, and restart the
server after each adapter is removed.
If the problem remains, replace the system board.