HP Deskpro 1000 Reference Manual page 70

Message Probable Cause
The computer beeps. No system memory present.
The beeps consist of
continuous long
beeps.
The computer beeps. A video error has occurred
The beeps consist of and the BIOS cannot initialize
a single long beep the video screen to display
followed by two short any additional information.
beeps.
BIOS ROM The checksum of the BIOS
Checksum Error - code in the BIOS chip is
System Halted incorrect, indicating the BIOS
code may have become
corrupt.
CMOS Battery Failed CMOS battery is no longer
functional.
CMOS Checksum The checksum of CMOS is
Error - Defaults incorrect, so the system loads
Loaded the default equipment
configuration.
appendix C
E M
RROR ESSAGES
This appendix lists the error codes that you may encounter
during the Power-On Self-Test (POST), the probable source of
the problem, and what steps you can take to resolve the error
condition.
Power-On Self-Test Messages
Recommended Action
Add system memory.
Ensure the VGA card is installed correctly and that
the monitor cable is well connected.
Contact your Compaq authorized dealer or service
provider to replace the BIOS.
Contact your Compaq authorized dealer or service
provider for a replacement battery.
A checksum error may indicate that CMOS has
become corrupt. This error may have been caused
by a weak battery. Check the battery and replace if
necessary.
Continued
Reference Guide C-1