Compaq Presario Series Maintenance And Service Manual page 157

System CMOS
Checksum Bad
System RAM Failed
at Offset, nnn
System Timer Error
UMB Upper Limit
Segment Address
nnn
Video BIOS
Shadowed
1.800.AT.COMPAQ
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CMOS is corrupted or modified
incorrectly
System RAM failed
DMA, timers, etc.
Displays the address nnn of the upper
limit of Upper Memory Blocks,
indicating released segments of the
BIOS
Video BIOS successfully copied to
shadow RAM
Run Setup.
Replace memory modules.
Replace the system board.
Status message. No action required.
Status message. No action required.