Symptom-to-FRU index
The symptom-to-FRU index in this section lists symptoms
and errors and their possible causes. The most likely
cause is listed first, in boldface type.
Note: Do the FRU replacement or other actions in the
sequence shown in the column headed “FRU or
action, in sequence.” If replacing a FRU 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 is displayed for each error detected in
POST or system operation. In the displays, n can be any
number.
If no numeric code is displayed, check the narrative
descriptions of symptoms. If the symptom is not described
there, go to “Intermittent problems” on page 66.
Note
For an IBM device not supported by diagnostic
codes in the ThinkPad notebook computers, see the
manual for that device.
Numeric error codes
Symptom or error FRU or action, in sequence
0175
Bad CRC1, stop POST
task—The EEPROM checksum
is not correct.
System board.
0176
System Security—The system
has been tampered with.
1. Run IBM BIOS Setup
Utility, and then save
current setting by
pressing F10.
2. System board.
0177
Bad SVP data, stop POST
task—Checksum of the
supervisor password in the
EEPROM is not correct.
System board
0182
Bad CRC2. Enter BIOS Setup
and load Setup
defaults.—Checksum of the
CRS2 setting in the EEPROM
is not correct.
1. Run IBM BIOS Setup
Utility. Press F9, and
Enter to load the default
setting. Then save current
setting by pressing F10.
2. System board.
Symptom-to-FRU index
ThinkPad X30, X31 59
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