Acer AB2x280 F1 Service Manual page 91

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Post Code
Description
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
98h
1-2 Search for option ROMs. One long, two short beeps on check-sum 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
B1h
Inform RomPilot about the end of POST.
B2h
POST done - prepare to boot operating system
B4h
1 One short beep before boot
B5h
Terminate QuietBoot (optional)
B6h
Check password (optional)
B7h
Initialize ACPI BIOS
B9h
Prepare Boot
Chapter 9
83

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