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Chapter 4
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
Check Point
Description
Содержание Power Sc
Страница 6: ...VI ...
Страница 14: ...6 Chapter 1 AcerPower Sx Main Board Layout ...
Страница 30: ...22 Chapter 1 ...
Страница 58: ...50 Chapter 2 ...
Страница 62: ...54 Chapter 3 3 Remove the CPU ...
Страница 70: ...62 Chapter 3 ...
Страница 91: ...82 Chapter 6 ...
Страница 101: ...92 Appendix A ...
Страница 111: ...102 Appendix B ...
Страница 113: ...104 Appendix C ...