IBM LS20 - BladeCenter - 8850, Service Manual

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Checkout procedure
The checkout procedure is the sequence of tasks that you should follow to
diagnose a problem in the blade server.
About the checkout procedure
Before performing the checkout procedure for diagnosing hardware problems,
review the following information:
v Read the safety information that begins on page v.
v
The diagnostic programs provide the primary methods of testing the major
components of the blade server. If you are not sure whether a problem is caused
by the hardware or by the software, you can use the diagnostic programs to
confirm that the hardware is working correctly.
v When you run the diagnostic programs, a single problem might cause more than
one error message. When this happens, correct the cause of the first error
message. The other error messages usually will not occur the next time you run
the diagnostic programs.
Exception: If there are multiple error codes or light path diagnostics LEDs that
indicate a microprocessor error, the error might be in a microprocessor or in a
microprocessor socket. See “Microprocessor problems” on page 32 for
information about diagnosing microprocessor problems.
v If the server is halted and a POST error code is displayed, see “Error logs” on
page 17. If the server is halted and no error message is displayed, see
“Troubleshooting tables” on page 27 and “Solving undetermined problems” on
page 50.
v
For intermittent problems, check the error log; see “Error logs” on page 17 and
“Diagnostic programs, messages, and error codes” on page 43.
v
If the blade server front panel shows no LEDs, verify the blade server status and
errors in the BladeCenter Web interface; also see “Solving undetermined
problems” on page 50.
v If device errors occur, see “Troubleshooting tables” on page 27.
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AMD Opteron LS20 Type 8850 for IBM BladeCenter: Problem Determination and Service Guide