Gigabyte GA-G1975X Manual - Page 106

E8POST.ASM, starts, POST hex, Description

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English POST (hex) 50h 52h 55h 57h 59h 5Bh 5Dh 60h 65h 67h 69h 6Bh 6Dh 6Fh 73h 75h 77h 7Ah 7Fh Description Initialize USB Test all memory (clear all extended memory to 0) Display number of processors (multi-processor platform) 1. Display PnP logo 2. Early ISA PnP initialization -Assign CSN to every ISA PnP device. Initialize the combined Trend Anti-Virus code. (Optional Feature) Show message for entering AWDFLASH.EXE from FDD (optional) 1. Initialize Init_Onboard_Super_IO switch. 2. Initialize Init_Onbaord_AUDIO switch. Okay to enter Setup utility; i.e. not until this POST stage can users enter the CMOS setup utility. Initialize PS/2 Mouse Prepare memory size information for function call: INT 15h ax=E820h Turn on L2 cache Program chipset registers according to items described in Setup & Auto-configuration table. 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". 1. Initialize floppy controller 2. Set up floppy related fields in 40:hardware. (Optional Feature) Enter AWDFLASH.EXE if : -AWDFLASH is found in floppy drive. -ALT+F2 is pressed Detect & install all IDE devices: HDD, LS120, ZIP, CDROM¡K.. Detect serial ports & parallel ports. Detect & install co-processor 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 - 106 -

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GA-G1975X Motherboard
- 106 -
English
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
POST (hex)
Description