Acer power sx/sxb/sc manual 4EH, 4FH, 4CH, 5CH, 5EH, 5AH, 5FH, 7CH, 6CH, A0H, A4H, A2H, A8H

Check Point		Description
35H	PCI pass 0
4EH	Scan PnP Devices
4FH	Config PnP Devices
40H	Initial PCI (1)
41H	Initial PCI (2)
42H	Initial PCI (3)
44H	Initial PCI (4)
45H	Initial PCI (5)
50H	Initializes video display
		NOTE: If system has any display card, it should be initialized via its I/O ROM or
		corresponding initialization program.
51H	Copy F-seg from ROM into shadow RAM
54H	Process VGA shadow region
4CH	Check CPU brand, ID and external frequency
58H	1.	Displays Acer (or OEM) logo (if necessary)
	2.	Displays Acer copyright message (if necessary).
	3.	Displays BIOS serial number.
59H	Hook INT 1CH for Quiet Boot.
64H	Tests keyboard interface
		NOTE: The keyboard LEDs should flash once.
5CH	Memory test (except the 384K base memory)
5EH	Load Pentium Pro CPU update code
5AH	Test SM RAM
5FH	Enables/Disables USB Function
60H	1.	Initializes SRAM cache capacity
	2.	Enables the cache function
70H	Initializes parallel port(s)
74H	Initializes parallel port(s)
78H	Reset math coprocessor
7CH	Check and initialize pointing device
80H	Set security status
82H	Prepare entering SETUP for user pressing CTRL + ALT DEL.
84H	Keyboard device initialization
6CH	1.	Tests and initializes FDD
	2.	The FDD LED should flash once and its head should be positioned
88H	1.	Sets HDD type and features (i.e. transfer speed, mode,....)
	2.	Tests HDD controller
90H	Displays POST status
93H	Rehook INT 1CH for Quiet Boot
94H	1.	Initializes I/O ROM
	2.	I/O ROM is an optional extension of the BIOS located on an installed add-on card as
		part of the I/O subsystem. POSt detects I/O ROMs and gives them opportunity to
		initialize themselves and their hardware environment.
96H	Initializes PCI I/O ROM
A0H	Sets time and day
A4H	Initializes security features
A2H	Initializes setup items
A8H	Setup SMI parameters

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