IBM x3690 X5 Service Manual page 90

Table 6. Light path diagnostics panel LEDs (continued)
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 3, "Parts listing", in the Problem Determination and Service Guide to determine which components
are customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If a action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
LED Description
CNFG A hardware configuration error
has occurred.
CPU An invalid microprocessor
configuration or a microprocessor
has failed (both the CPU LED
and the CNFG LED might be lit).
VRM Reserved.
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System x3690 X5 Types 7147, 7148, 7149, and 7192: Problem Determination and Service Guide
Action
1. If the CNFG LED and the CPU LED are lit, complete the
following steps to correct the problem:
a. Check the microprocessors that were just installed to
make sure that they are compatible with each other
(see "Replacing a microprocessor and heat sink" on
page 351 for additional information about
microprocessor requirements).
b. (Trained service technician only) Replace the
incompatible microprocessor.
c. Check the system-event logs for information about the
error. Replace any components that are identified in
the error log.
2. If the CNFG LED and the MEM LED are both lit,
complete the following steps:
a. Make sure that the DIMM configuration is supported
(see "Replacing a memory module" on page 296 for
DIMM requirements and installation sequence
information).
b. Replace the DIMMs with a supported configuration.
1. If the CNFG LED is lit, the system issues an invalid
microprocessor configuration error. Complete the
following steps to correct the problem:
a. Check the microprocessors that were just installed to
make sure that they are compatible with each other
(see "Replacing a microprocessor and heat sink" on
page 351 for additional information about
microprocessor requirements) and use the Setup utility
and select System Information → System Summary →
Processor to verify the microprocessors information.
b. (Trained service technician only) Replace the
incompatible microprocessor.
c. Check the system-event logs for information about the
error. Replace any components that are identified in
the error log.
2. If the CPU LED is lit and the CNFG LED is not lit,
complete the following steps:
a. (Trained service technician only) Make sure that the
failing microprocessor, which is indicated by a lit LED
on the system board, is installed correctly. See
"Replacing a microprocessor and heat sink" on page
351 for information about installation and
requirements.