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A-1 BIOS Error Beep (POST) 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 manufacturer for possible repairs.
These fatal errors are usually communicated through a series of audible beeps. The numbers
on the fatal error list (on the following page) correspond to the number of beeps for the
corresponding error. All errors listed, with the exception of Beep Code 8, are fatal errors.
Beep Code
Error Message
1 beep
Refresh
5 short, 1 long
Memory error
5 beeps
No con-in or con-out devices
1 beep per device
Refresh
Beep Code
Error Message
1 long continuous
System OH
Appendix A
BIOS Error Codes
BIOS Beep (POST) Codes
Description
Ready to boot
No memory detected in system
Con-in includes USB or PS/2 keyboard, PCI or serial
console redirection, and IPMI KVM or SOL.
Con-out includes the video controller, PCI or serial
console redirection, and IPMI SOL
1 beep for each USB device detected
IPMI Error Codes
Description
System overheat condition
95
Appendix A: BIOS Error Codes
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