Acer 3810TZ User Manual

Page 75

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Chapter 4

69

8Ah

Initialize Extended BIOS Data Area

8Bh

Test and initialize PS/2 mouse

8Ch

Initialize floppy controller

8Fh

Determine number of ATA drives (optional)

90h

Initialize hard-disk controllers

91h

Initialize local-bus hard-disk controllers

92h

Jump to UserPatch2

93h

Build MPTABLE for multi-processor boards

95h

Install CD ROM for boot

96h

Clear huge ES segment register

97h

Fixup Multi Processor table

98h

1-2

Search for option ROMs. One long, two short beeps on
checksum failure.

99h

Check for SMART drive (optional)

9Ah

Shadow option ROMs

9Ch

Set up Power Management

9Dh

Initialize security engine (optional)

9Eh

Enable hardware interrupts

9Fh

Determine number of ATA and SCSI drives

A0h

Set time of day

A2h

Check key lock

A4h

Initialize Typematic rate

A8h

Erase F2 prompt

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

Code

Beeps

POST Routine Description

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