ThinkPad A21m Cmos Battery - Lenovo

ThinkPad A21m Cmos Battery

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ThinkPad A2* Series Hardware Maintenance Manual (October 2001)


Page 56
... IBM BIOS Setup Utility. 3. System RAM failure at offset nnnn. System board. (continued) 50 ThinkPad A20m/p, A21m/p, A22m/p System board. 0250 System battery error - The password is dead. Load Setup Defaults in CMOS. DIMM. 2. System battery is cleared. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0252 Password...
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ThinkPad A2* Series Hardware Maintenance Manual (October 2001)


Page 57
...backup battery. 3. DIMM. 2. System board. 1. Neither the date nor the time is set in sequence 1. I/O card. 1. System board. 1. System board. 1. External FDD cable. 3. System board. System board. Run IBM BIOS Setup Utility to reset the time and date. 2. Diskette drive. 2. DIMM. 2. ThinkPad A20m/p, A21m/p and... A22m/p 51 Symptom-to-FRU index FRU or action, in the computer. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable. 02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail...
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Hardware Maintenance Manual for ThinkPad A21e (2628)


Page 46
...time and date. 2. DIMM. 2. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 0251 System CMOS checksum bad-Default configuration used. System board. 0270 Real-time clock error. 1. Charge the battery pack. 2. Run interactive tests of the keyboard and...-to-FRU index Symptom or error FRU or action, in CMOS. Reseat the hard-disk drive. 2. Load Setup Defaults in the computer. Run IBM BIOS Setup Utility to reset the time and date. (continued) 42 ThinkPad A21e Battery pack. 0200 Hard disk error - Keyboard error. System board...
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Hardware Maintenance Manual for ThinkPad A21e (2628)


Page 47
... Utility. 2. System board. 1. Load Setup Defaults in IBM BIOS Setup Utility. 2. System board. 1. External FDD cable. 3. Replace the backup battery. 3. DIMM. 2. Diskette drive. 2. DIMM. 2. System board. 1. System board. Symptom-to-FRU index Symptom or error 0280 Previous boot incomplete... - Default configuration used. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable. 02F5 DIMM test failure. 02F6 Software NMI failure. 02F7 Fail-safe timer NMI failure. 1801 Attached docking station is not supported...
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Hardware Maintenance Manual for ThinkPad A22m (wireless models)


Page 52
...2. The hard disk is dead. Load Setup Defaults in IBM BIOS Setup Utility. 0230 Shadow RAM error - DIMM. 2. System board. (continued) 48 ThinkPad A22m wireless models through a security gate. 0200 Hard disk error - Monitor type does not match the one specified in sequence 0190 Critical low...run IBM BIOS Setup Utility to -FRU index Symptom or error FRU or action, in CMOS. Symptom-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 ...
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Hardware Maintenance Manual for ThinkPad A22m (wireless models)


Page 53
System board. Replace the backup battery. 3. DIMM. 2. DIMM. 2. System board. Replace the backup battery and run IBM BIOS Setup Utility to reset the time and date. 1. I/O card. 1. DIMM. 2. ThinkPad A22m wireless models 49 Symptom or error 0270 Real-time clock error. 0271 Date and time error... - Run IBM BIOS Setup Utility to reset the time and date. 2. Diskette drive. 2. Load Setup Defaults in the computer. 02B2 Incorrect drive A type. 02F4 EISA CMOS not writable....
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English - User's Guide for A Series


Page 33
...with PC-Doctor (refer to "Testing your computer" on page 30). Then test the memory with PC-Doctor. The extended RAM failed. Replace the battery and run the BIOS Setup Utility (refer to "Testing your computer" on the computer first; If the same error code appears, have the computer ...Message 021x: Keyboard error 0220: Monitor type error 0230: Shadow RAM error 0231: System RAM error 0232: Extended RAM error 0250: System battery error 0251: System CMOS checksum bad 0252: Password checksum bad 0260: System timer error Cause and action Make sure that no object is placed on the keyboard ...

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We have the following 9 documents available for the Lenovo ThinkPad A21m:
  • ThinkPad A2* Series Hardware Maintenance Manual (October 2001)
  • Hardware Maintenance Manual for ThinkPad A22m (wireless models)
  • Hardware Maintenance Manual for ThinkPad A21e (2628)
  • English - User's Guide for A Series
  • (English) Access Connections Profile Deployment guide
  • (English) Deployment Guide for IBM Access Connections
  • Microsoft Windows XP Conversion Kit
  • ThinkPad A Series Setup Guide
  • EasyServe Repair Inventory Sheet
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