Lenovo ThinkPad A22p ThinkPad A2* Series Hardware Maintenance Manual (October - Page 57

Run IBM BIOS Setup Utility to, Load Setup Defaults

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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. 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. ThinkPad A20m/p, A21m/p and A22m/p 51

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Symptom or error
FRU or action, in sequence
0270
Real-time clock error.
1.
Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date
.
2.
System board.
0271
Date and time error — Neither
the date nor the time is set in
the computer.
Run IBM BIOS Setup Utility to
reset the time and date
.
02B2
Incorrect drive A type.
1.
Diskette drive
.
2.
External FDD cable.
3.
I/O card.
02F4
EISA CMOS not writable.
1.
Load Setup Defaults in
IBM BIOS Setup Utility
.
2.
Replace the backup battery.
3.
System board.
02F5
DIMM test failure.
1.
DIMM
.
2.
System board.
02F6
Software NMI failure.
1.
DIMM
.
2.
System board.
02F7
Fail-safe timer NMI failure.
1.
DIMM
.
2.
System board.
Symptom-to-FRU index
ThinkPad A20m/p, A21m/p and A22m/p
51