Troubleshooting Charts; Memory Problems; Microprocessor Problems; Monitor Problems - IBM eServer BladeCenter HS20 Type 8832 Installation And User Manual

Troubleshooting charts

The following tables list problem symptoms and suggested solutions. See the blade
server Hardware Maintenance Manual and Troubleshooting Guide on the IBM
BladeCenter Documentation CD or the IBM BladeCenter T Documentation CD for
more detailed troubleshooting charts. If you cannot find the problem in these charts,
run the diagnostic programs. If you have run the diagnostic test programs, or if
running the tests does not reveal the problem, call for service.

Memory problems

Symptom
The amount of system
memory displayed is less
than the amount of physical
memory installed.

Microprocessor problems

Symptom
The blade server emits a
continuous tone during POST.

Monitor problems

Note: The monitor screen remains blank until it is directed to a blade server that is
Suggested action
Make sure that:
v The memory modules are seated correctly.
v You have installed the correct type of memory.
v If you changed the memory, you updated the memory configuration in the
Configuration/Setup Utility program.
v All banks of memory are enabled. The blade server might have automatically
disabled a memory bank when it detected a problem, or a memory bank might
have been manually disabled.
Check the POST error log for error message 289:
v If the DIMM was disabled by a system-management interrupt (SMI), replace the
DIMM.
v If the DIMM was disabled by the user or by POST, run the Configuration/Setup
Utility program and enable the DIMM.
v If this error remains, replace the DIMM.
If the problem remains, call for service.
Suggested action
The startup (boot) microprocessor is not working properly.
make sure that the startup microprocessor is seated correctly. If it is, replace the
startup microprocessor.
If the problem remains, call for service.
powered on; this is normal behavior.
Chapter 6. Solving problems
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