POST Code

Function

Phase

Component

 

 

 

 

0xB5

Fade out OEM Logo or post string

LBT

Core

0xC5

End hotkey detection (Server BIOS)

LBT

Core

 

 

 

 

0xBE

If BCP option is enabled, clear the screen before

LBT

Core

 

booting.

 

 

 

 

 

 

0xB6

If password on boot is enabled, a call is made to

LBT

Core

 

Setup to check password. If the user does not enter

 

 

 

a valid password, Setup does not return.

 

 

 

 

 

 

0xBC

Clear parity-error latch

LBT

Core

 

 

 

 

0xB7

Initialize ACPI BIOS.

LBT

Core

 

 

 

 

0x9B

Enable CPU management (Geyserville I)

LBT

Core

 

 

 

 

0xBD

Display Boot First menu if MultiBoot is installed and

LBT

Core

 

hotkey pressed.

 

 

 

 

 

 

0xBF

Check virus and backup reminders.

LBT

Core

 

 

 

 

0x97

Create pointer to MP table in Extended BDA.

LBT

Core

 

 

 

 

0x99

Check support status for Self-Monitoring Analysis

LBT

Core

 

Reporting Technology (disk-failure warning).

 

 

 

 

 

 

0xB1

Unload ROM Pilot

LBT

Core

 

 

 

 

0xDD

Perform remote flash if requested

LBT

Core

 

 

 

 

0xC7

If UCR redirection is installed, remove display

LBT

Core

 

manager and unhook INT10

 

 

 

 

 

 

0XDF

Shutdown the PXE UNDI code

LBT

Core

 

 

 

 

0xB3

Store enhanced CMOS values in non-volatile area

LBT

Core

 

 

 

 

0xE4

Last Legacy BIOS Task before hand off to UEFI/DXE

LBT

Core

 

 

 

 

0xB9

Clear all screen graphics before booting.

bootLegacy

Core

 

 

 

 

0xC0

INT19 entry for legacy boot

bootLegacy

Core

 

 

 

 

0xEF

Invalid AP #

SDXE

Core

 

 

 

 

0xEF

Non-Yohna and non-Morem class CPU found for

SDXE

Core

 

SDXE (getTSCFreq)

 

 

 

 

 

 

0xEE

AP cannot synch BSP in SDXE (syncWithBSP)

SDXE

Core

 

 

 

 

0xEE

BSP cannot synch w/ AP in SDXE (syncWithAP)

SDXE

Core

 

 

 

 

154

Chapter 4

Page 164
Image 164
Aspire Digital 7730G manual 0XDF