Code

Beeps

POST Routine Description

 

 

 

AAh

 

Scan for F2 key stroke

 

 

 

ACh

 

Enter SETUP

 

 

 

AEh

 

Clear Boot flag

 

 

 

B0h

 

Check for errors

 

 

 

B2h

 

POST done—prepare to boot operating

 

 

system

 

 

 

B4h

1

One short beep before boot

 

 

 

B5h

 

Terminate QuietBoot (optional)

 

 

 

B6h

 

Check password (optional)

 

 

 

B9h

 

Prepare Boot

 

 

 

BAh

 

Initialize DMI parameters

 

 

 

BBh

 

Initialize PnP Option ROMs

 

 

 

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 handler

 

 

 

C5h

 

PnPnd dual CMOS (optional)

 

 

 

C6h

 

Initialize notebook docking (optional)

 

 

 

C7h

 

Initialize notebook docking late

 

 

 

C8h

 

Force check (optional)

 

 

 

C9h

 

Extended checksum (optional)

 

 

 

D2h

 

Unknown interrupt

 

 

 

E0h

 

Initialize the chipset

 

 

 

E1h

 

Initialize the bridge

 

 

 

E2h

 

Initialize the CPU

 

 

 

E3h

 

Initialize the system timer

 

 

 

E4h

 

Initialize system I/O

 

 

 

E5h

 

Check force recovery boot

 

 

 

E6h

 

Checksum BIOS ROM

 

 

 

E7h

 

Go to BIOS

 

 

 

E8h

 

Set Huge Segment

 

 

 

E9h

 

Initialize Multi Processor

 

 

 

EAh

 

Initialize OEM special code

 

 

 

EBh

 

Initialize PIC and DMA

 

 

 

ECh

 

Initialize Memory type

 

 

 

EDh

 

Initialize Memory size

 

 

 

EEh

 

Shadow Boot Block

 

 

 

EFh

 

System memory test

 

 

 

Chapter 1

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Page 81
Image 81
Acer 5910 manual Code Beeps Post Routine Description