Error LEDs
The following is an illustration of the system board LEDs. The system board has
error LEDs that will help to locate the source of the error. Run the diagnostic
programs to find out the cause of the error (see “Running the diagnostic programs”
on page 74).
The server is designed so that LEDs remain lit when the server is connected to an
ac power source but is not turned on, provided that the power supply is operating
correctly. This feature helps you to isolate the problem when the operating system
is shut down.
Many errors are first indicated by a lit system-error LED on the control-panel
assembly of the server. If this LED is lit, one or more LEDs elsewhere in the server
might also be lit and can direct you to the source of the error.
Before working inside the server to view the LEDs, read the safety information that
begins on page vii and “Handling static-sensitive devices” on page 144.
If an error occurs, view the server LEDs in the following order:
1. Check the control-panel assembly on the front of the server. If the system-error
LED is lit, it indicates that an error has occurred.
2. Check the front and rear of the server to determine whether any component
LEDs are lit.
3. Remove the server cover and look inside the server for lit LEDs. Certain
components inside the server have LEDs that will be lit to indicate the location
of a problem. For example, a DIMM error will light the LED next to the failing
DIMM on the system board.
Look at the system service label inside the side cover of the server, which gives
an overview of internal components. This information can often provide enough
information to correct the error.
The following table describes the LEDs on the system board and PCI extender
cards and suggested actions to correct the detected problems.
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 4, “Parts listing, System x3200 M3 Types 7327 and 7328,” on page 133 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Component LED Description Action
DIMM error LEDs A memory DIMM has failed or is
incorrectly installed.
1. Remove the DIMM that has the lit error LED.
2. Reseat the DIMM.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. DIMM
b. (Trained service technician only) System board
Fan error LEDs A fan has failed, is operating too
slowly, or has been removed.
1. Reseat the failing fan, which is indicated by a lit
LED near the fan connector on the system board.
2. Replace the failing fan.
Chapter 3. Diagnostics 69
To Next Page
Loading...
Need help?
General