IBM ThinkPad T21 Hardware Maintenance Manual page 56

Symptom-to-FRU index
Symptom or error
0193
RF antenna has been removed
0194
The computer has been carried
through a security gate
0195
Security hardware tamper
detected
0196
Security hardware removed
0197
Invalid remote change
requested
01C9
More than one Ethernet devices
are found. Remove one of
them. Press <Esc> to continue.
0200
Hard disk error—The hard disk
is not working.
021x
Keyboard error
0220
Monitor type error—Monitor
type does not match the one
specified in CMOS.
0230
Shadow RAM error—Shadow
RAM fails at offset nnnn.
0231
System RAM error—System
RAM fails at offset nnnn.
50
ThinkPad T20, T21, T22, T23 (MT 2647/2648)
FRU or action, in sequence
Enter the supervisor
password.
Enter the supervisor
password.
1. Enter IBM BIOS Setup
Utility by entering
supervisor password, and
select "Password" -->
"IBM Security Chip" -->
"Clear IBM Security Chip"
to clear this error.
2. Security chip.
3. System board.
1. Enter IBM BIOS Setup
Utility by entering
supervisor password, and
select "Password" -->
"IBM Security Chip" -->
"Clear IBM Security Chip"
to clear this error.
2. Security chip.
3. System board.
The remote configuration for
the security chip has failed.
Confirm the operation and try
again.
1. Remove the Ethernet
device that you installed;
or press Esc to ignore the
warning message.
2. System board.
1. Reseat the hard-disk
drive.
2. Load Setup Defaults in IBM
BIOS Setup Utility.
3. Hard-disk drive.
4. System board.
Run interactive tests of the
keyboard and the auxiliary
input device.
Load Setup Defaults in IBM
BIOS Setup Utility.
System board.
1. DIMM.
2. System board.