Appendix A: POST Error Beep Codes
A-1
Appendix A
BIOS Error Beep Codes
During the POST (Power-On Self-Test) routines, which are performed each time
the system is powered on, errors may occur.
Non-fatal errors
are those which, in most cases, allow the system to continue
with bootup. The error messages normally appear on the screen.
Fatal errors
will not allow the system to continue to bootup. If a fatal error oc-
curs, you should consult with your system manufacturer for possible repairs.
These fatal errors are usually communicated through a series of audible beeps.
The numbers on the fatal error list correspond to the number of beeps for the
corresponding error.
A-1 BIOS Error Beep Codes
BIOS Error Beep Codes
Beep Code/LED
Error Message
Description
1 beep
Refresh
Circuits have been reset.
(Ready to power up)
5 short beeps
Memory error
No memory detected in the
system
OH LED On
System OH
System Overheat
