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• “Intermittent problems” on page 52
• “Undetermined problems” on page 53
The symptom-to-FRU index in this section lists symptoms and errors and their possible causes. The most
likely cause is listed rst, 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 52
.
Note: For a device not supported by diagnostic codes in the ThinkPad Notebooks, see the manual for
that device.
Numeric error codes
Table 2. 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 BIOS Setup Utility, and save the current
setting by pressing F10.
2. System board.
0177
Bad SVP data, stop POST task—The checksum of the
supervisor password in the EEPROM is not correct.
System board.
0182
Bad CRC2. Enter BIOS Setup and load Setup
defaults.—The checksum of the CRS2 setting in the
EEPROM is not correct.
1. Run BIOS Setup Utility. Press F9, and Enter to
load the default setting. Then save the current
setting by pressing F10.
2. System board.
0185
Bad startup sequence settings. Enter BIOS Setup and
load Setup defaults.
1. Run BIOS Setup Utility. Press F9, and Enter to
load the default setting. Then save the current
setting by pressing F10.
0187
EAIA data access error—The access to EEPROM is failed.
System board.
0188
Invalid RFID Serialization Information Area.
System board.
0189
Invalid RFID conguration information area—The
EEPROM checksum is not correct.
System board.
0190
Critical low-battery error
1. Charge the battery pack.
2. Battery pack.
46 ThinkPad T510, T510i, and W510 Hardware Maintenance Manual
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