94

Final Init

Final init for last micro details

 

 

before boot

95

Special KBC patch

Set system speed for boot

 

 

Setup NumLock status according to

 

 

Setup

96

Boot Attempt

Set low stack

 

 

Boot via INT 19h.

FF

Boot

 

Quick POST Codes

Code(hex) Name

Description

65Init onboard device 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

 

66

Early System setup

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

 

67

KBC and CMOS Init

Verifies CMOS is working correctly,

 

 

 

 

 

detects bad battery. If failed, load

 

 

 

CMOS defaults and load into chipset

 

 

 

Final Initial KBC and setup BIOS data

 

 

 

area.

 

68

Video Init

Read CMOS location 14h to find out

 

 

 

 

 

type of video in use.

 

 

 

Detect and Initialize Video Adapter.

 

 

 

Test video memory, write sign-on

 

 

 

message to screen.

 

 

 

Setup shadow RAM - Enable shadow

 

 

 

according to Setup.

 

69

8259 Init

Init 8259 channel 1 and mask IRQ 9

 

 

 

6A

Memory test

Quick Memory Test

 

 

 

 

 

 

 

 

6B

CPU Detect and IO

Detect CPU speed and display

 

 

 

 

init

CPU vendor specific version string

 

 

 

and turn on all necessary CPU features

 

 

 

Display PnP logo and PnP early init

 

 

 

Setup virus protect according to

 

 

 

Setup. If required, will auto load

 

 

 

Awdflash.exe in POST

 

 

 

Initializing onboard superIO

 

6C

Reserved

 

 

 

 

6D

Reserved

 

 

 

 

6E

Reserved

 

 

 

 

6F

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

55

 

 

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AMD 790GX, SB750 user manual Quick Post Codes