Lenovo ThinkPad X23 ThinkPad X20, X21, X22, X23, X24 Hardware Maintenance Manu - Page 54

Error messages

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02F4 EISA CMOS not writable. 02F5 DIMM test failure 02F6 Software NMI failure 02F7 Fail-safe timer NMI failure 1. Load Setup Defaults in IBM BIOS Setup Utility.Replace the backup battery. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 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 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. 50 ThinkPad X20, X21, X22, X23, X24

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02F4
EISA CMOS not writable.
1.
Load Setup Defaults in
IBM BIOS Setup
Utility.
Replace the backup
battery.
2.
System board.
02F5
DIMM test failure
1.
DIMM.
2.
System board.
02F6
Software NMI failure
1.
DIMM.
2.
System board.
02F7
Fail-safe timer NMI failure
1.
DIMM.
2.
System board.
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.
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.
50
ThinkPad X20, X21, X22, X23, X24