IBM T23 Hardware Maintenance Manual - Page 57

Run IBM BIOS Setup Utility to, and run IBM BIOS Setup - password reset

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Symptom-to-FRU index Symptom or error 0232 Extended RAM error-Extended RAM fails at offset nnnn. 0250 System battery error-System battery is dead. 0251 System CMOS checksum bad-Default configuration used. 0252 Password checksum bad-The password is cleared. 0260 System timer error 0270 Real time clock error 0271 Date and time error-Neither the date nor the time is set in the computer. 02B2 Incorrect drive A type 02F4 EISA CMOS not writable 02F5 DMA test failed 02F6 Software NMI failed 02F7 Fail-safe timer NMI failed FRU or action, in sequence 1. DIMM. 2. System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. Reset the password by running IBM BIOS Setup Utility. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. Run IBM BIOS Setup Utility to reset the time and date. 1. Diskette drive. 2. External FDD cable. 3. I/O card. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. Replace the backup battery. 3. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. 1. DIMM. 2. System board. ThinkPad T20, T21, T22 and T23 series 51

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Symptom or error
FRU or action, in sequence
0232
Extended RAM
error
—
Extended RAM fails at
offset nnnn.
1.
DIMM
.
2.
System board.
0250
System battery error
—
System
battery is dead.
Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date
.
0251
System CMOS checksum
bad
—
Default configuration
used.
Replace the backup battery
and run IBM BIOS Setup
Utility to reset the time and
date
.
0252
Password checksum bad
—
The
password is cleared.
Reset the password by
running IBM BIOS Setup
Utility.
0260
System timer error
1.
Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date
.
2.
System board.
0270
Real time clock error
1.
Replace the backup
battery and run IBM BIOS
Setup Utility to reset the
time and date
.
2.
System board.
0271
Date and time error
—
Neither
the date nor the time is set in
the computer.
Run IBM BIOS Setup Utility to
reset the time and date
.
02B2
Incorrect drive A type
1.
Diskette drive
.
2.
External FDD cable.
3.
I/O card.
02F4
EISA CMOS not writable
1.
Load Setup Defaults in
IBM BIOS Setup Utility
.
2.
Replace the backup battery.
3.
System board.
02F5
DMA test failed
1.
DIMM
.
2.
System board.
02F6
Software NMI failed
1.
DIMM
.
2.
System board.
02F7
Fail-safe timer NMI failed
1.
DIMM
.
2.
System board.
Symptom-to-FRU index
ThinkPad T20, T21, T22 and T23 series
51