ibm thinkpad 600x Schematics

Symptom-to-FRU error messages

Symptom-to-FRU error messages

This chapter describes the Symptom-to-FRU error
messages.

How to use error messages

Use the error codes displayed on the screen to diagnose
failures.

If two or more error codes are displayed, begin the
diagnosis with the first one. Whatever caused the first
error code can cause false error codes to be displayed.

If no error code is displayed, see if the error symptom is
listed in the “Symptom-to-FRU index.”

How to diagnose multiple FRUs

When an adapter or a device has more than one FRU, the
error code could be caused by any of them. Before
replacing multiple FRUs, try removing or exchanging each
FRU, one by one in the specified sequence, to see if the
symptoms change.

Symptom-to-FRU index

The symptom-to-FRU index lists the symptoms and errors
and their possible causes. The most likely cause is listed
first.

Note: Do the FRU replacements or other actions in the

sequence shown in the “FRU/Action in Sequence”
column. If a FRU replacement does not solve the
problem, put the original part back in the computer.
Do not replace a nondefective FRU.

This index can also help you determine, during regular
servicing, what FRUs are likely to need to be replaced
next.

A numeric error code is displayed for each error detected
in POST or system operation. In the displays, X can be
any number.

If no numeric codes is presented, use the narrative
descriptions of symptoms.

If a symptom is not listed, go to “Undetermined problems”
on page 31.

Note

For an IBM device not supported by diagnostic codes
in the ThinkPad notebook computers, see the manual
for that device.

17

Symptom-to-FRU error messages

Numeric error codes

Symptom or error FRU or action, in

10X

101: Interrupt failure.
102: Timer failure.
103: Timer interrupt

failure.

104: Protected mode

failure.

105: Last 8042

command not
accepted.
107: NMI test failure.
108: Timer bus test
failure.

109: Low meg-chip

select test.

110

System board parity.

111

I/O parity.

11XX

1101: Serial_A test failure.

12XX

1201: Serial_B test failure.

158

No hard disk password has
been set even though the
supervisor password is set.

159

The hard disk password is
not set the same as the
supervisor password.

sequence

1. System board

1. Go to “Testing the

computer” on
page 7.

2. DIMM card.

3. If the expansion unit is
attached to the
computer, detach it.

4. System board.

1. Go to “Testing the

computer” on
page 7.

2. Expansion unit or port
replicator.

3. System board.

1. Go to “Testing the

computer” on
page 7.

2. Serial device.

3. Communication cable.

4. System board.

1. Go to “Testing the

computer” on
page 7.

2. System board
(infrared).

Set the password for the
hard disk drive.

Set the correct password
for the hard disk drive.

18 ThinkPad 600X Hardware Maintenance Manual