IBM BladeCenter JS21 Types 8844 Service Manual page 142

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, Types 7988 and 8844," on page 137 to determine which components are
CRUs and which components are 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 light path
diagnostics LED Description
I/O expansion A I/O expansion option error occurred.
option error
Microprocessor x The microprocessor has failed.
error
NMI error The system board has failed.
System board error The system board has failed
System- The service processor has failed
management
processor error
Temperature error The system temperature has exceeded a
threshold level.
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BladeCenter JS21 Types 7988 and 8844: Problem Determination and Service Guide
Action
1. Make sure that the I/O expansion option is
supported.
2. Reseat the I/O expansion option.
3. Replace the I/O expansion option.
1. Replace the blade server cover, reinsert
the blade server in the BladeCenter unit,
and then restart the blade server.
2. Check the management module event log
for information about the error.
3. Replace the system-board and chassis
assembly.
1. Replace the blade server cover, reinsert
the blade server in the BladeCenter unit,
and then restart the blade server.
2. Check the management module event log
for information about the error.
3. Replace the system-board and chassis
assembly.
1. Replace the blade server cover, reinsert
the blade server in the BladeCenter unit,
and then restart the blade server.
2. Check the management module event log
for information about the error.
3. Replace the system-board and chassis
assembly.
1. Replace the blade server cover, reinsert
the blade server in the BladeCenter unit,
and then restart the blade server.
2. Check the management module event log
for information about the error.
3. Replace the system-board and chassis
assembly.
1. Check to see if a blower on the
BladeCenter unit has failed. If it has,
replace the blower (see the Hardware
Maintenance Manual and Troubleshooting
Guide or Problem Determination and
Service Guide for your BladeCenter unit for
more information).
2. Make sure that the room temperature is not
too high. (See "Features and specifications"
on page 3 for temperature information.)