Lenovo ThinkPad i Series 1800 TP A21e, A22e Hardware Maintenance Manual (June - Page 51
continued, ThinkPad A21e, A22e, i 1800, Run IBM BIOS Setup Utility
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Symptom-to-FRU index Symptom or error FRU or action, in sequence 0190 Critical low battery error. 1. Charge the battery pack. 2. Battery pack. 0200 Hard disk error - The hard disk is not working. 1. Reseat the hard-disk drive. 2. Load Setup Defaults in IBM BIOS Setup Utility. 3. Hard-disk drive. 4. System board. 021x Stuck key - Keyboard error. Run interactive tests of the keyboard and the auxiliary input device. 0220 Monitor type error - Monitor type does not match the one specified in CMOS. Load Setup Defaults in IBM BIOS Setup Utility. 0230 Shadow RAM error - The shadow RAM failure at offset nnnn. System board. 0231 System RAM failure at offset nnnn. 1. DIMM. 2. System board. 0232 Extended RAM error - Extended RAM failure 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. (continued) ThinkPad A21e, A22e, i 1800 47