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Checkout Guide
Use the following procedure as a guide for computer
problems.
Note: The diagnostic tests are intended to test only IBM
products. Non-IBM products, prototype cards, or
modified options can give false errors and invalid
system responses.
1. Obtain the failing symptoms in as much detail as
possible.
2. Verify the symptoms by attempting to re-create the
failure by running the diagnostic test or by repeating
the same operation.
Note: To run the diagnostics, refer to “Running the
Diagnostics” on page 563.
3. Use the following table with the verified symptom to
determine which page to go to. Search the
symptoms column, and find the description that best
matches your symptom; then go to the page shown in
the “Go To” column.
Symptoms (Verified) Go To
Power failure. (The power
indicator does not go on or
stay on.)
“Power Systems Checkout”
on page 533.
POST does not complete.
No beeps or error codes are
displayed.
“Symptom-to-FRU Index” on
page 542, and then go to
“No Beep Symptoms” on
page 551.
The configuration is not the
same as the installed
devices.
“Checking the Installed
Devices List” on page 564.
POST beeps, but no error
codes are displayed.
“Symptom-to-FRU Index” on
page 542, and then go to
“Beep Symptoms” on
page 551.
POST detected an error and
displayed numeric error
codes.
“Symptom-to-FRU Index” on
page 542, and then go to
“Numeric Error Codes” on
page 542.
The diagnostic test detected
an error and displayed a
FRU code.
“FRU Codes” on page 548.
Other symptoms (such as
LCD display problems).
“Symptom-to-FRU Index” on
page 542, and then go to
“Other Symptoms” on
page 560.
Symptoms cannot be
re-created (intermittent
problems).
“Symptom-to-FRU Index” on
page 542 and then go to
“Intermittent Symptoms” on
page 560.
528 IBM Mobile Systems HMM