A-1
Appendix A: BIOS POST Error Codes
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
the boot-up process. The error messages normally appear on the screen.
Fatal errors
are those which will not allow the system to continue the boot-up
procedure. If a fatal error occurs, you should consult with your system manufac-
turer 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
Error Message
Description
1 beep
Refresh
Circuits have been reset.
(Ready to power up)
5 short beeps + 1 long
beep
Memory error
No memory detected in the
system
8 beeps
Display memory
read/write error
Video adapter missing or with
faulty memory
1 continuous beep w/
Front Panel OH LED on
System Overheat
1 continuous beep with the
front panel OH LED on