TABLE H-44BIOS POST Codes

POST Code

Description

 

 

9E

Enable hardware interrupts

9F

Determine number of ATA and SCSI drives

A0

Set time of day

A2

Check key lock

A4

Initialize typematic rate

A8

Erase F2 prompt

AAScan for F2 key stroke

AC

Enter setup

AE

Clear boot flag

B0

Check for errors

B1

Inform RomPilot about the end of POST

B2

POST done - prepare to boot operating system

B4

One short beep

B5

Terminate QuietBoot (optional)

B6

Check password

B7

Initialize ACPI BIOS

B9

Prepare boot

BA

Initialize DMI parameters

BBInitialize PnP option ROMs

BC

Clear parity checkers

BD

Display multiboot menu

BE

Clear screen

BF

Check virus and backup reminders

C0

Try to boot with interrupt 19

C1

Initialize POST Error Manager (PEM)

C2

Initialize error logging

C3

Initialize error display function

C4

Initialize system error handler

C5

PnP dual CMOS (optional)

C6

Initialize notebook docking (optional)

 

 

Appendix H Service Processor Commands 191

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Sun Microsystems V40z, V20Z manual Enable hardware interrupts