IBM LS21 - BladeCenter - 7971, Service Manual

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6. Did a single beep sound and are there readable instructions on the main menu?
v No: Find the failure symptom in “Troubleshooting tables”; if necessary, see
“Solving undetermined problems” on page 56.
v
Yes: Run the diagnostic programs (see “Running the diagnostic programs” on
page 43).
– If you receive an error, see “Diagnostic error codes” on page 44.
– If the diagnostic programs were completed successfully and you still
suspect a problem, see “Solving undetermined problems” on page 56.
Troubleshooting tables
Use the troubleshooting tables to find solutions to problems that have identifiable
symptoms. If these symptoms relate to shared BladeCenter unit resources, see
“Solving shared BladeCenter resource problems” on page 52.
If you cannot find the problem in these tables, see “Running the diagnostic
programs” on page 43 for information about testing the blade server.
If you have just added new software or a new optional device, and the blade server
is not working, complete the following steps before using the troubleshooting tables:
1. Remove the software or device that you just added.
2. Run the diagnostic tests to determine whether the blade server is running
correctly.
3. Reinstall the new software or new device.
General problems
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 7971 and 7972,” on page 59 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.
Symptom Action
A cover lock is broken, an LED
is not working, or a similar
problem has occurred.
If the part is a CRU, replace it. If the part is a FRU, the part must be replaced by a
trained service technician.
Chapter 2. Diagnostics
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