ThinkPad A2* Series Hardware Maintenance Manual (October 2001)
Page 56
...computer has been carried password. The hard disk is not working. 1. Load Setup Defaults in CMOS. System board. 021x Stuck key - Load Setup Defaults in sequence 0190 Critical low battery error. 1. The shadow RAM failure at offset nnnn. 1. System RAM failure at offset ...nnnn. 1. System board. 0250 System battery error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m...
...computer has been carried password. The hard disk is not working. 1. Load Setup Defaults in CMOS. System board. 021x Stuck key - Load Setup Defaults in sequence 0190 Critical low battery error. 1. The shadow RAM failure at offset nnnn. 1. System RAM failure at offset ...nnnn. 1. System board. 0250 System battery error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 2. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m...
ThinkPad A2* Series Hardware Maintenance Manual (October 2001)
Page 57
... Defaults in sequence 1. System board. 1. Symptom or error 0270 Real-time clock error. 0271 Date and time error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Diskette drive. 2. System board. Neither the date nor the time... is set 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. System board. 1. System board. 1. ThinkPad A20m/p, A21m/p and A22m/p 51 Replace the backup battery. 3.
... Defaults in sequence 1. System board. 1. Symptom or error 0270 Real-time clock error. 0271 Date and time error - Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. Diskette drive. 2. System board. Neither the date nor the time... is set 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. System board. 1. System board. 1. ThinkPad A20m/p, A21m/p and A22m/p 51 Replace the backup battery. 3.