Error Messages - IBM ThinkPad T21 Hardware Maintenance Manual

Symptom-to-FRU index

Error messages

Symptom or error
Device address conflict.
Allocation error for device.
Failing bits: nnnn.
Invalid system configuration
data.
I/O device IRQ conflict.
Operating system not found.
Hibernation error.
Fan error.
Thermal sensing error.
52
ThinkPad T20, T21, T22, T23 (MT 2647/2648)
FRU or action, in sequence
1. Load "Setup Defaults" in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
1. Load "Setup Defaults" in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
1. DIMM.
2. System board.
1. DIMM.
2. System board.
1. Load "Setup Defaults" in
IBM BIOS Setup Utility.
2. Backup battery.
3. System board.
1. Check that the operating
system has no failure and is
installed correctly.
2. Enter IBM BIOS Setup
Utility and see whether
the hard-disk drive and
the diskette drive are
properly identified.
3. Reseat the hard-disk drive.
4. Reinstall the operating
system.
5. Diskette drive.
6. Hard-disk drive.
7. System board.
1. Restore the system
configuration to what it
was before the computer
entered hibernation mode.
2. If memory size has been
changed, re-create the
hibernation file.
Fan.
System board.