Hardware Maintenance Manual
Page 56
.... System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p The hard disk is dead. System board. 0231 System RAM error - DIMM. 2. through a security gate. 0200 Hard disk error - Load Setup Defaults in CMOS. Monitor type does not match the one specified in IBM BIOS Setup Utility. 3. Replace the backup battery and run IBM BIOS Setup Utility to reset...
.... System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p The hard disk is dead. System board. 0231 System RAM error - DIMM. 2. through a security gate. 0200 Hard disk error - Load Setup Defaults in CMOS. Monitor type does not match the one specified in IBM BIOS Setup Utility. 3. Replace the backup battery and run IBM BIOS Setup Utility to reset...
Hardware Maintenance Manual
Page 57
.... External FDD cable. 3. Replace the backup battery. 3. System board. 1. Run IBM BIOS Setup Utility 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. ThinkPad A20m/p, A21m/p and A22m/p 51 DIMM...
.... External FDD cable. 3. Replace the backup battery. 3. System board. 1. Run IBM BIOS Setup Utility 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. ThinkPad A20m/p, A21m/p and A22m/p 51 DIMM...