AMD 790GX, SB750 user manual BootBlock POST Codes, Codehex, Name, Description

		Reset Video controller
		Keyboard controller init
		Test the Keyboard
		Initilized the mouse
5B	Cmos Check	Check Cmos Circuitry and reset CMOS
5C	Chipset default	Program the chipset registers with
	Prog	CMOS values. Init onboard clock
		generator
5D	Identify the CPU	Check the CPU ID and init L1/L2 cache
5E	Setup Interrupt	Initialize first 120 interrupt
	Vector Table	vectors with SPURIOUS_INT_HDLR and
		INT 00h-1Fh according to INT_TBL
		First step initialize if single CPU
		Onboard. Re-init KB
		If support HPM, HPM get initialized
		Here.
5F	Test CMOS	Verifies CMOS is working correctly,
	Interface and	detects bad battery. If failed, load
	Battery status	CMOS defaults and load into chipset
60	KBC final Init	Final Initial KBC and setup BIOS data
		area
61	Initialize Video	Read CMOS location 14h to find out
	Interface	type of video in use.
		Detect and Initialize Video Adapter.
62	Video memory test	Test video memory, write sign-on
		message to screen.
		Setup shadow RAM - Enable shadow
		according to Setup.
63	Setup PS2 mouse and	Setup PS2 Mouse and reset KB
	test DMA	Test DMA channel 0
64	Test 8259	Test 8259 channel 1 and mask IRQ 9
65	Init Boot Device	Detect if mouse is present,
		initialize mouse, install interrupt
		vectors.
		Special treatment to PS2 Mouse port
		ACPI sub-system initializing
		Initialize cache controller.
66	Install Boot	Enter setup check and auto-
	Devices	configuration check up
		Initialize floppy disk drive
		controller and any drives.
		Install FDD and setup BIOS data area
		Parameters Initialize hard drive
		controller and any drives.
		IDE device detection and install
67	Cache Init	Cache init and USB init
68	PM init	PM initialization
69	PM final Init and	Final init Before resume
	issue SMI
FF	Full on

BootBlock POST Codes

Code(hex)	Name	Description
1	Base memory test	Clear base memory area
		(0000:0000--9000:ffffh)
5	KB init	Initialized KBC
12	Install interrupt	Install int. vector (0-77), and
	vectors	initialized 00-1fh to their
		proper place
0D	Init Video	Video initializing
41	Init FDD	Scan floppy and media capacity for onboard
		superIO
		57