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IBM ThinkPad A22m 2628 Hardware Maintenance Manual Page 53

Lenovo thinkpad a22m 2628: hardware guide.
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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.
FRU or action, in sequence
1. Replace the backup
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
2. Replace the backup battery.
3. System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
ThinkPad A22m wireless models
Symptom-to-FRU index
battery and run IBM BIOS
Setup Utility to reset the
time and date.
IBM BIOS Setup Utility.
49

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