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Symptom or error
0270
Real-time clock error.
0271
Date and time error — Neither
the date nor the time is set in
the computer.
02B2
Incorrect drive A type.
02F4
EISA CMOS not writable.
02F5
DIMM test failure.
02F6
Software NMI failure.
02F7
Fail-safe timer NMI failure.
ThinkPad A20m/p, A21m/p and A22m/p
Symptom-to-FRU index
FRU or action, in sequence
1. Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date.
2. System board.
Run IBM BIOS Setup Utility to
reset the time and date.
1. Diskette drive.
2. External FDD cable.
3. I/O card.
1. Load Setup Defaults in
IBM BIOS Setup Utility.
2. Replace the backup battery.
3. System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
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