6 Tests and Error Messages

Order in Which POST Tests Are Performed

Checkpoint

 

MaxiLife LCD

Beep

POST Routine Description

Display

Code

Codes

 

Message

 

 

 

 

 

 

 

A2h

Check key lock

 

 

 

 

 

 

A4h

Initialize typematic rate

 

 

 

 

 

 

A8h

Erase F2 prompt

 

 

 

 

 

 

AAh

Scan for F2 key stroke

 

 

 

 

 

 

ACh

Enter SETUP

BIOS SETUP

 

 

 

 

 

AEh

Clear Boot flag

 

 

 

 

 

 

B0h

Check for errors

...Checking...

 

 

 

 

 

B2h

POST done - prepare to boot operating system

 

 

 

 

 

 

B5H

Terminate QuietBoot (optional)

 

 

 

 

 

 

B6h

Check password (optional)

Check Password

 

 

 

 

 

B7h

ACPI tables initialized

ACPI Init.

 

 

 

 

 

B8h

Clear global descriptor table

 

 

 

 

 

 

B9h

Prepare Boot

Prepare Boot...

 

 

 

 

 

BAh

Initialize DMI parameters

DMI Tables Init.

 

 

 

 

 

BBh

Initialize PnP Option ROMs

PNP Opt. ROM Init

 

 

 

 

 

BCh

Clear parity checkers

 

 

 

 

 

 

BDh

Display MultiBoot menu

 

 

 

 

 

 

BEh

Clear screen (optional)

 

 

 

 

 

 

BFh

Check virus and backup reminders

 

 

 

 

 

 

C0h

Try to boot with INT 19

 

 

 

 

 

 

C1h

Initialize POST Error Manager (PEM)

 

 

 

 

 

 

C2h

Initialize error logging

 

 

 

 

 

 

C3h

Initialize error display function

 

 

 

 

 

 

C4h

Initialize system error handling

 

 

 

 

 

 

C5h

PnPnd dual CMOS (optional)

 

 

 

 

 

 

 

 

 

 

110

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Image 110
HP XU700 Check key lock, Initialize typematic rate, Erase F2 prompt, Scan for F2 key stroke, Enter Setup, Clear Boot flag