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40 IBM Desktop System HMM
Table 2-1 POST Error Codes and Messages List
NOTE:
To diagnose a problem, first find the BIOS error
messages or codes in left column. If directed to a
check procedure, replace the FRU indicated in the
check procedure. If no check procedure is indicated,
the first Action/FRU listed in right column is the most
likely cause.
BIOS Error Codes,
Messages
Action/FRU
Real Time Clock Error
CMOS Battery Has Failed
CMOS Checksum Error
1. Enter Configuration/
Setup Utility and load the
default settings.
2. CMOS battery.
3. System board.
Disk Boot Failure, Insert
System Disk And Press
Enter
1. Insert a bootable floppy
disk into floppy drive.
2. Check if floppy drive fails.
3. Check if system board
fails.
Diskette Drives Or Types
Mismatch Error-Run Setup
1. Enter Configuration/
Setup Utility to
reconfigure the drive type
correctly.
Display Switch Is Set
Incorrectly
1. Enter Configuration/
Setup Utility to
reconfigure Video
Setting.
Display Type Has Changed
Since Last Boot
1. Enter Configuration/
Setup Utility to configure
new display type.
2. Adapter Card
EISA Configuration
Checksum Error
Please Run EISA
Configuration Utility
1. No ESIA slot available.
EISA Configuration Is Not
Complete
Please Run EISA
Configuration Utility
1. No ESIA slot available.