Bios Error Messages; Beep Codes - HP Compaq t5125 Troubleshooting Manual

Diagnostics and Troubleshooting

BIOS Error Messages

Beep Codes

4-4
A BIOS beep code indicates that a video error has occurred and the
BIOS cannot initialize the video screen to display any additional
information. This beep code consists of a single long beep followed
by two short beeps. One long beep followed by three short beeps
indicates the system is running in boot block recovery mode. If there
are no video errors, the system goes directly to POST messages.
POST Messages
BIOS ROM checksum error -
System halted
CMOS battery failed
CMOS checksum error -
Defaults loaded
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Procedures
The checksum of the BIOS code in the
BIOS chip is incorrect, indicating the
BIOS code may have become
corrupt. To restore a corrupt BIOS,
refer to Appendix D, "System BIOS"
or call your local HP Call Center for a
diagnosis. For phone numbers of an
HP Call Center near you, visit the
following Web site:
http://www.hp.com/cgi-bin/hpsupp
ort/index.pl
The CMOS battery is no longer
functional. For information on
replacing the battery, refer to
Appendix E, "Replacing the CMOS
Battery."
Checksum of CMOS is incorrect, so
the system loads the default
equipment configuration. A checksum
error may indicate that CMOS has
become corrupt. A weak battery may
have caused this error. Replace the
battery if necessary. For more
information, refer to Appendix E,
"Replacing the CMOS Battery."
Troubleshooting Guide