Lenovo D400 Desktop IdeaCentre - Manual (Page 30)

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The Symptom-to-FRU index lists error symptoms and possible causes. The
most likely cause is listed first. Always begin with Chapter 4, “General
Checkout,” on page 13. This index can also be used to help you decide which
FRUs to have available when servicing a computer. If you are unable to correct
the problem using this index, go to “Undetermined problems” on page 27.
Notes
• If you have both an error message and an incorrect audio response
diagnose the error message first.
• If you cannot run the diagnostic tests or you get a diagnostic error code
when running a test but did receive a POST error message diagnose the
POST error message first.
• If you did not receive any error message look for a description of your error
symptoms in the first part of this index.
Symptom-to-FRU index