HP KAYAK XU800 the video, Setting video mode, 8254 timer initialization, 6 Tests and Error Messages, vector initialization begins, Initializing memory refresh test

6 Tests and Error Messages

Order in Which POST Tests Are Performed

Checkpoint	POST Routine Description (Continued)
Code	(A Check Point Code is NOT an error code or error number)
0Eh	Keyboard controller BAT command result has been verified. Next performing any
	necessary initialization after the keyboard controller BAT command test.
0Fh	Keyboard command byte is then written.
10h	Issuing the Pin 23 and 24 blocking and unblocking commands.
11h	Checking if the <End> or <Ins> keys were pressed during power-on. Initializing
	CMOS RAM if the Initialize CMOS RAM in every boot AMIBIOS POST option was set in
	AMIBCP or the <End> key was pressed.
12h	Disabling DMA controllers 1 and 2, and Interrupt controllers 1 and 2.
13h	Video display has been disabled. Port B has been initialized. Then, initializing the chipset.
14h	8254 timer initialization.
19h	Initializing memory refresh test.
1Ah	memory refresh line is toggling. Checking the 15 second on/off time.
23h	Reading the 8042 input port and disabling the MEGAKEY Green PC feature. Making the
	BIOS code segment writable and performing any necessary configuration before
	initialization the interrupt vectors.
24h	Configuration required before Interrupt vector initialization has completed. Then Interrupt
	vector initialization begins.
25h	Clearing the password if the POST DIAG switch is on.
27h	Setting video mode.
28h	Video ROM performs any required configuration before the video ROM test.
2Ah	System bus initialization, static, output devices, if present.
2Bh	Video ROM performs any required configuration before testing.
2Ch	All necessary processing before passing control to the Video ROM is completed. Video
	ROM is searched, then control passed on to it.
2Dh	Video ROM returns control to the BIOS POST. Performing any required processing after
	the video
2Eh	If the EGA/VGA controller is not found, performing the display memory read/write test.
2Fh	The EGA/VGA controller was not found. The display memory read/write test begins.

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