Hardware Maintenance Manual
Page 56
... not match the one specified in sequence 0190 Critical low battery error. 1. System RAM failure at offset nnnn. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Extended RAM failure at offset... and the auxiliary input device. 0220 Monitor type error - DIMM. 2. The password is dead. Keyboard error. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad - System board. (continued) 50 ThinkPad A20m/p, A21m...
... not match the one specified in sequence 0190 Critical low battery error. 1. System RAM failure at offset nnnn. 1. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. Extended RAM failure at offset... and the auxiliary input device. 0220 Monitor type error - DIMM. 2. The password is dead. Keyboard error. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password checksum bad - System board. (continued) 50 ThinkPad A20m/p, A21m...
Hardware Maintenance Manual
Page 57
... Date and time error - Symptom-to reset the time and date. 2. Load Setup Defaults in the computer. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable. 02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail-safe timer NMI failure. DIMM. 2. DIMM. 2. System board. 1. System board... A20m/p, A21m/p and A22m/p 51 System board. Replace the backup battery and run IBM BIOS Setup Utility to -FRU index FRU or action, in sequence 1. Run IBM BIOS Setup Utility to reset the time and date. 1. Replace the backup battery. 3. System board. 1. Neither the date nor the time is...
... Date and time error - Symptom-to reset the time and date. 2. Load Setup Defaults in the computer. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable. 02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail-safe timer NMI failure. DIMM. 2. DIMM. 2. System board. 1. System board... A20m/p, A21m/p and A22m/p 51 System board. Replace the backup battery and run IBM BIOS Setup Utility to -FRU index FRU or action, in sequence 1. Run IBM BIOS Setup Utility to reset the time and date. 1. Replace the backup battery. 3. System board. 1. Neither the date nor the time is...