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Table A-4. Uncompressed Initialization Error Codes
Post Code Description
The memory refresh line is toggling. Checking the 15 second on/off time
1Ah
next.
Passing control to the video ROM to perform any required configuration
2Bh
before the video ROM test.
All necessary processing before passing control to the video ROM is
2Ch
done. Looking for the video ROM next and passing control to it.
The video ROM has returned control to BIOS POST. Performing any
2Dh
required processing after the video ROM had control
Reading the 8042 input port and disabling the MEGAKEY Green PC
feature next. Making the BIOS code segment writable and performing any
23h
necessary configuration before initializing the interrupt vectors.
The configuration required before interrupt vector initialization has
24h
completed. Interrupt vector initialization is about to begin.
Interrupt vector initialization is done. Clearing the password if the POST
25h
DIAG switch is on.
Any initialization before setting video mode will be done next.
27h
Initialization before setting the video mode is complete. Configuring the
28h
monochrome mode and color mode settings next.
Bus initialization system, static, output devices will be done next, if
2Ah
present. See the last page for additional information.
Completed post-video ROM test processing. If the EGA/VGA controller is
2Eh
not found, performing the display memory read/write test next.
The EGA/VGA controller was not found. The display memory read/write
2Fh
test is about to begin.
The display memory read/write test passed. Look for retrace checking
30h
next.
The display memory read/write test or retrace checking failed. Performing
31h
the alternate display memory read/write test next.
The alternate display memory read/write test passed. Looking for
32h
alternate display retrace checking next.
Video display checking is over. Setting the display mode next.
34h
The display mode is set. Displaying the power on message next.
37h
Initializing the bus input, IPL, general devices next, if present. See the last
38h
page of this chapter for additional information.
Displaying bus initialization error messages. See the last page of this
39h
chapter for additional information.
The new cursor position has been read and saved. Displaying the Hit
3Ah
<DEL> message next.
The Hit <DEL> message is displayed. The protected mode memory test
3Bh
is about to start.
A-7
:
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