BIOS Setup Information
WEB-6580
【
R1.0
】
User’s Manual 4-23
“+3.300”, “+5.000V”, “+12.000V”.
4.11 BIOS POST Check Point List
AMIBIOS provides all IBM standard Power On Self Test (POST) routines
as well as enhanced AMIBIOS POST routines. The POST routines
support CPU internal diagnostics. The POST checkpoint codes are
accessible via the Manufacturing Test Port (I/O port 80h).
Whenever a recoverable error occurs during the POST, the system BIOS
will display an error message describing the message and explaining the
problem in detail so that the problem can be corrected.
During the POST, the BIOS signals a checkpoint by issuing one code to
I/O address 80H. This code can be used to establish how far the BIOS has
executed through the power-on sequence and what test is currently being
performed. This is done to help troubleshoot faulty system board.
If the BIOS detects a terminal error condition, it will halt the POST
process and attempt to display the checkpoint code written to port 80H. If
the system hangs before the BIOS detects the terminal error, the value at
port 80H will be the last
test performed. In this case, the terminal error cannot be displayed on the
screen. The following POST checkpoint codes are valid for all AMIBIOS
products with a core BIOS date of 07/15/95 version 6.27 (Enhanced).
Uncompressed Initialization Codes — The uncompressed
To Next Page
Loading...
Need help?
General
