POST Code Definition

D-3

 

 

6B

Program chipset registers according to items described in Setup & Auto-configuration table

1. Assign resources to all ISA PnP devices

6D 2. Auto assign ports to onboard COM ports if the corresponding item in Setup is set to “AUTO”

6F

1. Initialize floppy controller

2. Set up floppy related fields in 40:hardware

75Detect & install all IDE devices: HDD, LS120, ZIP, CDROM … (Optional Feature)

Enter AWDFLASH.EXE if:

76

-AWDFLASH is found in floppy drive -ALT+F2 is pressed

77Detect serial ports & parallel ports.

7A Detect & install co-processor

7C Init HDD write protect

Switch back to text mode if full screen logo is supported

7F -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

1. Call chipset power management hook

822. Recover the text font used by EPA logo (not for full screen logo)

3.If password is set, ask for password

83Save all data in stack back to CMOS

84Initialize ISA PnP boot devices

851. USB final Initialization

2.Switch screen back to text mode

87 NET PC: Build SYSID Structure

89 1. Assign IRQs to PCI devices

2. Set up ACPI table at top of the memory.

8B 1. Invoke all ISA adapter ROMs

2. Invoke all PCI ROMs (except VGA)

8D 1. Enable/Disable Parity Check according to CMOS setup

2. APM Initialization

8F Clear noise of IRQs

93 Read HDD boot sector information for Trend Anti-Virus code

94

1. Enable L2 cache

2. Program Daylight Saving

3. Program boot up speed

4. Chipset final initialization.

5. Power management final initialization

6.Clear screen & display summary table

7.Program K6 write allocation

8.Program P6 class write combining

95Update keyboard LED & typematic rate

1.Build MP table

2.Build & update ESCD

963. Set CMOS century to 20h or 19h

4.Load CMOS time into DOS timer tick

5.Build MSIRQ routing table

FF Boot attempt (INT 19h)

User’s Manual