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During the POST (Power-On Self-Test) routines, which are performed at each
system boot, errors may occur.
Non-fatal errors are those which, in most cases, allow the system to continue to
boot. The error messages normally appear on the screen.
Fatal errors will not allow the system to continue with bootup procedure. If a
fatal error occurs, 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.
Beep Code/LED
1 beep
5 short beeps + 1
long beep
5 beeps
Appendix A
BIOS Error Beep Codes
BIOS Error Beep Codes
Error Message
Refresh
Memory error
No Con-In or
Con-Out devices
A-1
Appendix A: BIOS Error Beep Codes
Description
Circuits have been reset. (Ready to power
up)
No memory detected in the system
Con-In includes USB or PS/2 keyboard,
PCI or Serial Console Redirection.
Con-Out includes Video Controller, PCI or
Serial Console Redirection.
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