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 59.
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 Load Setup
Defaults.
2. System board.
0177
Bad SVP data, stop POST task.
System board.
0182
Bad CRC2. Enter BIOS Setup
and load Setup Defaults.
Run IBM BIOS Setup Utility
and Load Setup Defaults.
0185
Bad startup sequence settings.
Enter BIOS Setup and load
setup defaults.
Run IBM BIOS Setup Utility
and Load Setup Defaults
Symptom-to-FRU index
ThinkPad R40
53
Summary of Contents for ThinkPad R40
Page 1: ...IBM Mobile Systems ThinkPad Computer Hardware Maintenance Manual IBM...
Page 6: ...2 ThinkPad R40...
Page 46: ...Checkout guide 42 ThinkPad R40...
Page 88: ...3 Removing and replacing a FRU 84 ThinkPad R40...
Page 93: ...Modem daughter card MDC 3 4 5 continued Removing and replacing a FRU ThinkPad R40 89...
Page 105: ...7 7 Removing and replacing a FRU ThinkPad R40 101...
Page 132: ...5 6 7 8 10 11 12 13 14 9 1 2 3 4 15 16 Locations 128 ThinkPad R40...
Page 160: ...LCD FRUs 1 2 3 5 6 4 Parts list 156 ThinkPad R40...
Page 178: ...IBMR Part Number 92P1332 Printed in U S A 1P P N 92P1332...