IBM 560x Hardware Manual
Symptom-to-FRU Index
The symptom-to-FRU Index lists the symptoms and errors
and the possible causes. The most likely cause is listed
first.
and the possible causes. The most likely cause is listed
first.
Note
Perform the FRU replacement or actions in the
sequence shown in the “FRU/Action” columns. If a
FRU replacement did not solve the problem, put the
original FRU back in the computer. Do not replace a
nondefective FRU.
sequence shown in the “FRU/Action” columns. If a
FRU replacement did not solve the problem, put the
original FRU back in the computer. Do not replace a
nondefective FRU.
This index can also help you determine the next possible
FRUs to be replaced when servicing a computer.
FRUs to be replaced when servicing a computer.
Numeric error codes show the errors detected in POST or
system operation. In the following error codes, X can be
any number.
system operation. In the following error codes, X can be
any number.
If no codes are available, use narrative symptoms.
If the symptom is not listed, go to “Undetermined
Problems” on page 46.
Problems” on page 46.
Note
For IBM devices not supported by diagnostic codes in
the ThinkPad notebook computers, see the manual for
that device.
the ThinkPad notebook computers, see the manual for
that device.
Numeric Error Codes
Symptom / Error
FRU / Action in Sequence
10X
101: Interrupt failure.
102: Timer failure.
103: Timer interrupt
failure.
failure.
104: Protected mode
failure.
failure.
105: Last 8042
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.
109: Low meg-chip
select test.
select test.
1. System board.
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IBM ThinkPad 560X (2640-60x, 70x) HMM