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Symptom or error FRU or action, in sequence
0190
Critical low battery error.
1. Charge the battery pack.
2. Battery pack.
0193
RF antenna has been removed.
Enter the supervisor
password.
0194
The computer has been carried
through a security gate.
Enter the supervisor
password.
0200
Hard disk error — The hard
disk is not working.
1. Reseat the hard-disk
drive.
2. Load Setup Defaults in IBM
BIOS Setup Utility.
3. Hard-disk drive.
4. System board.
021x
Stuck key — Keyboard error.
Run interactive tests of the
keyboard and the auxiliary
input device.
0220
Monitor type error — Monitor
type does not match the one
specified in CMOS.
Load Setup Defaults in IBM
BIOS Setup Utility.
0230
Shadow RAM error — The
shadow RAM failure at offset
nnnn.
System board.
0231
System RAM error — System
RAM failure at offset nnnn.
1. DIMM.
2. System board.
0232
Extended RAM error —
Extended RAM failure at offset
nnnn.
1. DIMM.
2. System board.
0250
System battery error — System
battery is dead.
Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date.
0251
System CMOS checksum
bad—Default configuration
used.
Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date.
0252
Password checksum bad —
The password is cleared.
Reset the password by
running IBM BIOS Setup
Utility.
0260
System timer error.
1. Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date.
2. System board.
(continued)
Symptom-to-FRU index
50 ThinkPad A20m/p, A21m/p, A22m/p