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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 long beeps + 2 short
beeps
5 beeps
1 beep per device
1 continuous beep
Appendix A
BIOS Error Beep Codes
BIOS Error Beep Codes
Error Message
Refresh
Memory error
Display memory
read/write error
No Con-In or No
Con-Out devices
Refresh
X9 IPMI Error Codes
System overheat
A-1
Appendix A: BIOS Error Beep Codes
Description
Circuits have been reset.
(Ready to power up)
No memory detected in the
system
Video adapter missing or with
faulty memory
Con-In: USB or PS/2 key-
board, PCI or Serial Console
Redirection, IPMI KVM or
SOL
Con-Out: Video Controller,
PCI or Serial Console Redi-
rection, IPMI SOL
1 beep for each USB device
System overheat
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