IBM 300 Series 6268, Hardware Maintenance Manual

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Symptom-to-FRU index
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 24. See
“IBM PC Enhanced Diagnostics error codes” on page 1
when running diagnostics. 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 problem” on
page 102.
Notes
Ÿ
If you have both an error message and an
incorrect audio response, diagnose the error
message first.
Ÿ
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.
Ÿ
If you did not receive any error message, look for
a description of your error symptoms in the first
part of this index.
Ÿ
Check all power supply voltages before you
replace the system board. (See “Power supply”
on page 29.)
Ÿ
Check the hard disk drive jumper settings before
you replace a hard disk drive. (See “Hard disk
drive jumper settings” on page 52.)
Important
1. Some errors are indicated with a series of beep
codes. (See “Beep symptoms” on page 81.)
Type 6268/6278/6288/6338/2173 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:
Ÿ
Enable Power on Status in setup. See
“Setup Utility program” on page 41.
2. The processor is a separate FRU from the
system board; the processor is not included with
the system board FRU.
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IBM PC 300/IntelliStation/Aptiva Vol 2 HMM