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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.
Note
Replace the FRUs one at a time in the sequence
shown in the FRUs of the SelectaDock Sequence of
Action column. If a replaced part did not resolve the
problem, put the original part back in the SelectaDock
Docking System. Do not replace nondefective parts.
Always begin with “General Preparation” on page 3. This
index also can be used to help you decide which FRUs to
have available when servicing the SelectaDock Docking
System.
Numeric error codes show the errors detected in the POST
or system operation. Xs, when included in the error code,
can be any number.
FRU codes are used for errors detected by diagnostic
tests.
If no error codes are available, use narrative symptoms.
If the symptom is not listed or you cannot correct the
problem using this index, go to “Undetermined Problems”
on page 30.
If you cannot correct the problem using this index, go to
“Undetermined Problems” on page 30.
Important
1. Before replacing any SCSI device, verify there
are no duplicate SCSI ID settings.
2. Make sure there are no conflicts of hardware
settings, such as, interrupt level, memory
address, DMA channel, and I/O address.
3. If you have both an error message and an
incorrect audio response, diagnose the error
message first.
4. If you cannot run the advanced diagnostic tests,
but did receive a POST error message, diagnose
the POST error message.
5. If you did not receive an error message, look for
a description of your error symptoms in the first
part of this index.
6. Check all power supply voltages before you
replace the main card, riser card, and audio card
of the SelectaDock Docking System. (See
“Power Supply” on page 6.)
18 IBM Mobile Systems HMM