IBM ThinkPad G40 Hardware Maintenance Manual page 56

Symptom-to-FRU index
Symptom or error
0250
System battery
error—System
battery is dead.
0251
System CMOS
checksum
bad—Default
configuration used.
0260
System timer error
0270
Real time clock error
0271
Date and time
error—Neither the
date nor the time is
set in the computer.
0280
Previous boot
incomplete—Default
configuration used.
02D0
System cache error
02F4
EISA CMOS not
writable
52
ThinkPad G40, G41
FRU or action, in sequence
1. Recharge the backup battery for
one hour by connecting the ac
adapter to the computer and run
IBM BIOS Setup Utility to verify the
configuration.
2. Replace the backup battery and run
IBM BIOS Setup Utility to reset the
time and date.
1. Recharge the backup battery for
one hour by connecting the ac
adapter to the computer and run
IBM BIOS Setup Utility to verify the
configuration.
2. Replace the backup battery and run
IBM BIOS Setup Utility to reset the
time and date.
1. Recharge the backup battery for
one hour by connecting the ac
adapter to the computer and run
IBM BIOS Setup Utility to verify the
configuration.
2. Replace the backup battery and run
IBM BIOS Setup Utility to reset the
time and date.
3. System board.
1. Recharge the backup battery for
one hour by connecting the ac
adapter to the computer and run
IBM BIOS Setup Utility to verify the
configuration.
2. Replace the backup battery and run
IBM BIOS Setup Utility to reset the
time and date.
3. System board.
Run IBM BIOS Setup Utility to reset the
time and date.
1. Load "Setup Default" in IBM BIOS
Setup Utility.
2. DIMM.
3. System board.
1. CPU
1. Load Setup Defaults in IBM BIOS
Setup Utility.
2. Recharge the backup battery for one
hour by connecting the ac adapter to
the computer and run IBM BIOS Setup
Utility to verify the configuration.
3. Replace the backup battery.
4. System board.