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Table 10. Light path diagnostics panel LEDs (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See "Parts listing" to determine which components are customer replaceable units (CRU) and which
components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)", that step must be performed only by a
trained service technician.
Description
LED
TEMP
The system temperature has
exceeded a threshold level. A
failing fan can cause the TEMP
LED to be lit.
MEM
When only the MEM LED is lit, a
memory error has occurred.
When both the MEM and CNFG
LEDs are lit, the memory
configuration is invalid or the PCI
Option ROM is out of resource.
NMI
A nonmaskable interrupt has
occurred, or the NMI button was
pressed.
Action
1. Make sure that the heat sink is seated correctly.
2. Determine whether a fan has failed. If it has, replace it.
3. Make sure that the room temperature is not too high. See
"Features and specifications" on page 6
temperature information.
4. Make sure that the air vents are not blocked.
5. For more information, go to
entry/portal/docdisplay?lndocid=SERV-CALL
Note: Each time you install or remove a DIMM, you must
disconnect the server from the power source; then, wait 10
seconds before restarting the server.
1. If the MEM LED and the CNFG LED are lit, complete the
following step:
a. Check the system-event log in the Setup utility or IMM
error messages.
2. If the CNFG LED is not lit, the system might detect a
memory error. Complete the following steps to correct the
problem:
a. Update the server firmware to the latest level.
b. Reseat or swap the DIMMs.
c. Check the system-event log in the Setup utility or IMM
error messages.
Check the system-error log for information about the error.
for the server
http://www.ibm.com/support/
.
.
Chapter 3
Diagnostics
389
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