IBM T23 Hardware Maintenance Manual - Page 58

Error messages

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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. 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. 52 ThinkPad T20, T21, T22, T23 (MT 2647/2648)

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Error messages
Symptom or error
FRU or action, in sequence
Device address conflict.
1.
Load
“
Setup Defaults
”
in
IBM BIOS Setup Utility
.
2.
Backup battery.
3.
System board.
Allocation error for device.
1.
Load
“
Setup Defaults
”
in
IBM BIOS Setup Utility
.
2.
Backup battery.
3.
System board.
Failing bits: nnnn.
1.
DIMM
.
2.
System board.
Invalid system configuration
data.
1.
DIMM
.
2.
System board.
I/O device IRQ conflict.
1.
Load
“
Setup Defaults
”
in
IBM BIOS Setup Utility
.
2.
Backup battery.
3.
System board.
Operating system not found.
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.
Hibernation error.
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 error.
Fan
.
Thermal sensing error.
System board
.
Symptom-to-FRU index
52
ThinkPad T20, T21, T22, T23 (MT 2647/2648)