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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the Hardware Maintenance Manual to determine which components are customer replaceable units
(CRUs) and which components are field replaceable units (FRUs).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Lit EasyLED
diagnostics LED with
the system-error or
information LED also
lit Description Action
System-event log
(LOG)
A system error occurred. View the contents of the system-event log (see “Event
logs” on page 176).
Temperature The system temperature has
exceeded a threshold level.
1. See the system-event log for the source of the
fault (see “Event logs” on page 176).
2. Make sure that the airflow in the server is not
blocked.
3. Make sure that the room temperature is neither too
hot nor too cold (see “Environment” in “Features
and technologies” on page 7).
System board (BRD) An error occurred on the system
board.
1. Check the LEDs on the system board to identify
the component that is causing the error. The BRD
LED can be lit for the following conditions:
v Failed or missing battery
v Failed voltage regulator
2. Check the system-event log for information about
the error.
3. Replace any failed or missing replaceable
components, such as the battery.
4. (Trained service technician only) If a voltage
regulator has failed, replace the system board.
PCI bus A PCI adapter has failed.
1. See the system-event log (see “Event logs” on
page 176).
2. Check the LEDs on the PCI slots to identify the
component that is causing the error, and reseat the
failing adapter.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. Failing adapter
b. (Trained service technician only) System board
Fan A fan has failed or is operating too
slowly.
1. Reinstall the removed fan.
2. If an individual fan LED is lit, replace the fan.
3. (Trained service technician only) Replace the
system board.
Chapter 4. Server controls, LEDs, and power 21