Error Messages - IBM ThinkPad X21 2660 Hardware Maintenance Manual

02F7
Fail-safe timer NMI failure

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
Operating system not found
Fan error
40
ThinkPad X21
1. DIMM.
2. System board.
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. Enter IBM BIOS
Setup Utility and see
whether the hard disk
drive and the diskette
drive are properly
identified.
2. Diskette drive.
3. Hard disk drive.
4. System board.
1. Restore the system
configuration to what
it was the before the
computer entered
hibernation mode.
2. If memory size has
been changed, re-
create the hibernation
file.
1. Reseat the hard disk
drive.
2. Check the boot
sequence by use of
IBM BIOS Setup
1. Fan.