IBM LS21 - BladeCenter - 7971, Service Manual

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No-beep symptoms
The following table describes situations in which no beep code sounds when POST
is completed.
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.
No-beep symptom Action
No beep and the blade server operates correctly (Trained service technician only) Replace the system
board assembly.
No beep and no video (system-error LED is off) See “Solving undetermined problems” on page 56.
No beep and no video (system attention LED is lit) See “Light path diagnostics” on page 38.
POST error codes
The following table describes the POST error codes and suggested actions to
correct the detected 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.
Error code Description Action
062 Three consecutive startup failures
1. Run the Configuration/Setup Utility program, select
Load Default Settings , make sure that the date
and time are correct, and save the settings.
2. Reseat the following components:
a. Battery
b. MPE unit (if one is installed)
c. DIMMs
d. (Trained service technician only)
Microprocessor 1
e. (Trained service technician only)
Microprocessor 2
3. Replace the following components one at a time,
in the order shown, restarting the blade server
each time:
a. Battery
b. DIMMs
c. (Trained service technician only)
Microprocessor 1
d. (Trained service technician only)
Microprocessor 2
e. (Trained service technician only) System board
assembly
Chapter 2. Diagnostics
15