Appendix A: BIOS POST Codes
A-1
This section lists the POST (Power On Self Test) codes for the Phoenix BIOS. POST
codes are divided into two categories: recoverable and terminal.
Recoverable POST Errors
When a recoverable type of error occurs during POST, the BIOS will display an
POST code that describes the problem. BIOS may also issue one of the following
beep codes:
1 long and 8 short beeps - video confi guration error
1 repetitive long beep - no memory detected
1 continuous beep + Overheat LED on: System Overheat
Terminal POST Errors
If a terminal type of error occurs, BIOS will shut down the system. Before doing so,
BIOS will write the error to port 80h, attempt to initialize video and write the error
in the top left corner of the screen.
Appendix A
BIOS POST Codes
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