Lenovo ThinkPad T510 Hardware Maintenance Manual page 61

Table 2. Numeric error codes (continued)
Symptom or error
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.
0280
Previous boot incomplete— Default configuration used.
02B2
Incorrect drive A type.
02D0
System cache error.
02F0
CPU ID:xx Failed.
02F4
EISA CMOS not writable.
02F5
DMA test failed.
FRU or action, in sequence
1. Charge the backup battery for more than 8 hours
by connecting the ac adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
1. Charge the backup battery for more than 8 hours
by connecting the ac adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
Reset the password by running BIOS Setup Utility.
1. Charge the backup battery for more than 8 hours
by connecting the ac adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
3. System board.
1. Charge the backup battery for more than 8 hours
by connecting the ac adapter.
2. Replace the backup battery and run BIOS Setup
Utility to reset the time and date.
3. System board.
Run BIOS Setup Utility to reset the time and date.
1. Load "Setup Default" in BIOS Setup Utility.
2. DIMM.
3. System board.
1. Diskette drive.
2. External FDD cable.
3. I/O card.
1. CPU.
2. System board.
1. Load Setup Defaults in BIOS Setup Utility.
2. Replace the backup battery.
3. System board.
1. DIMM.
2. System board.
Chapter 4
.
Related service information
53