Table of Contents
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AIMB-251 Series
Code (hex)
Name
3
Early Superio Init
4
Reserved
5
Blank video
6
Reserved
7
Init KBC
8
KB test
9
Reserved
A
Mouse Init
B
Onboard Audio init
C
Reserved
D
Reserved
E
CheckSum Check
F
Reserved
10
Auto detec EEPROM
11
Reserved
12
Cmos Check
13
Reserved
14
Chipset Default load
15
Reserved
16
Clock Init
17
Reserved
18
Identify the CPU
19
Reserved
1A
Reserved
1B
Setup Interrupt Vector
Table
1C
Reserved
1D
Early PM Init
1E
Reserved
1F
Re-initial KB
20
Reserved
21
HPM init
22
Reserved
23
Test CMOS Interface
and battery Status
24
Reserved
96 AIMB-251 Series User's Manual
Description
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard
Initialized the mouse
Onboard audio controller initialize if exist
Check the intergraty of the ROM, BIOS and message
Check Flash type and copy flash write/erase routines to 0F000h
segments
Check Cmos Circuitry and reset CMOS
Program the chipset registers with CMOS values
Init onboard clock generator
Check the CPU ID and init L1/L2 cache
Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR
and initialize INT 00h-1Fh according to INT_TBL
First step initialize if single CPU onboard
Re-init KB
If support HPM, HPM get initialized here
Verifies CMOS is working correctly, detects bad battery. If failed,
load CMOS defaults and load into chipset
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