English

POST (hex)

 

Description

50h

Initialize USB

52h

Test all memory (clear all extended memory to 0)

55h

Display number of processors (multi-processor platform)

57h

1.

Display PnP logo

 

2.

Early ISA PnP initialization

 

 

-Assign CSN to every ISA PnP device.

59h

Initialize the combined Trend Anti-Virus code.

5Bh

(Optional Feature)

 

Show message for entering AWDFLASH.EXE from FDD (optional)

5Dh

1.

Initialize Init_Onboard_Super_IO switch.

 

2.

Initialize Init_Onbaord_AUDIO switch.

60h

Okay to enter Setup utility; i.e. not until this POST stage can users

 

enter the CMOS setup utility.

65h

Initialize PS/2 Mouse

67h

Prepare memory size information for function call:

 

INT 15h ax=E820h

69h

Turn on L2 cache

6Bh

Program chipset registers according to items described in Setup &

 

Auto-configuration table.

6Dh

1.

Assign resources to all ISA PnP devices.

 

2. Auto assign ports to onboard COM ports if the corresponding item in Setup

 

is set to “AUTO”.

6Fh

1.

Initialize floppy controller

 

2.

Set up floppy related fields in 40:hardware.

73h

(Optional Feature)

 

Enter AWDFLASH.EXE if :

 

 

-AWDFLASH is found in floppy drive.

 

 

-ALT+F2 is pressed

75h

Detect & install all IDE devices: HDD, LS120, ZIP, CDROM¡K..

77h

Detect serial ports & parallel ports.

7Ah

Detect & install co-processor

7Fh

1.

Switch back to text mode if full screen logo is supported.

 

 

-If errors occur, report errors & wait for keys

 

 

-If no errors occur or F1 key is pressed to continue:

 

 

Clear EPA or customization logo.

 

 

E8POST.ASM starts

 

 

 

GA-G1975X Motherboard

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Intel GA-G1975X user manual E8POST.ASM starts