Check Procedures 430250System Battery is Dead-Replace and Run SETUP1. Check system battery.If replaced, re-runSetup0251System CMOS ChecksumBad-Default ConfigurationUsed1. Run Setup. Load thedefault settings, orenter Setup to key-inyour own values.2. Check system battery0260System Timer Error0270Real Time Clock Error1. Check system board0271Check Date and TimeSettings1. Run Setup. Reset theReal-Time clock.0280Previous Boot Incomplete-Default Configuration Used1. Run Setup. Verify if thewait-state configurationis correct.0281Memory Size Found byPOST Differed from CMOS1. Check system battery02B0Diskette Drive A Error1. Re-connect floppy diskdrive2. Enter Configuration/Setup Utility and loadthe default settings.3. Floppy disk drive4. System board02B1Diskette Drive B Error1. Re-connect floppy diskdrive2. Enter Configuration/Setup Utility and loadthe default settings.3. Floppy disk drive4. System boardTable 2-1 POST Error Codes and Messages ListNOTE: To diagnose a problem, first find the BIOS errormessages or codes in left column. If directed to acheck procedure, replace the FRU indicated in thecheck procedure. If no check procedure is indicated,the first Action/FRU listed in right column is the mostlikely cause.BIOS Error Codes,Messages Action/FRU