IBM 6339 - Chapter 6. Symptom-To-FRU Index

© Copyright IBM Corp. 2000 71
Chapter 6. Symptom-to-FRU Index
SDRAM memory errors . . . . . . . . . . . . . . . . . . . . . . 72
Hard disk drive boot error. . . . . . . . . . . . . . . . . . . . 72
Power Supply Errors. . . . . . . . . . . . . . . . . . . . . . . . . 72
Diagnostic error codes . . . . . . . . . . . . . . . . . . . . . . . 74
Beep symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
No-beep symptoms . . . . . . . . . . . . . . . . . . . . . . . . . 93
POST error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Miscellaneous error messages . . . . . . . . . . . . . . . 107
Undetermined problems . . . . . . . . . . . . . . . . . . . . 109
The Symptom-to-FRU index lists error symptoms and possible causes. The most
likely cause is listed first. Always begin with "General Checkout" on page 1. 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 109.
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.
• Check the hard disk drive jumper settings before you replace a hard disk drive.
Important:
Some errors are indicated with a series of beep codes (see “Beep symptoms” on page 91).
Type 2254, 2256, 2257, 6336, 6337, 6339, 6341, 6342, 6346, 6347, 6348 computers default to come
up quiet (no beep and no memory count and checkpoint code display) when no errors are
detected by POST. To enable beep and memory count and checkpoint code display when a
successful POST occurs, do the following:
1. Select Start Options in the Configuration/Setup Utility program (see “Setup Utility
program” on page 10).
2. Set Power-On Self-Test to Enhanced.
The processor is a separate FRU from the system board; the processor is not included with the
system board FRU.