Acer 9410-2829 - Aspire Service Manual page 93

Code
7Ch
7Eh
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Fh
90h
91h
92h
93h
95h
96h
97h
98h
99h
9Ah
9Ch
9Dh
9Eh
9Fh
A0h
A2h
A4h
A8h
AAh
ACh
AEh
B0h
84
Beeps
Set up hardware interrupt vectors
Initialize coprocessor if present
Disable onboard Super I/O ports and
IRQs
Late POST device initialization
Detect and install external RS232 ports
Configure non-MCD IDE controllers
Detect and install external parallel ports
Initialize PC-compatible PnP ISA
devices
Re-initialize onboard I/O ports
Configure Motherboard Configurable
Devices (optional)
Initialize BIOS Data Area
Enable Non-Maskable Interrupts (NMIs)
Initialize Extended BIOS Data Area
Test and initialize PS/2 mouse
Initialize floppy controller
Determine number of ATA drives
(optional)
Initialize hard-disk controllers
Initialize local-bus hard-disk controllers
Jump to UserPatch2
Build MPTABLE for multi-processor
boards
Install CD ROM for boot
Clear huge ES segment register
Fixup Multi Processor table
1-2 Search for option ROMs. One long, two
short beeps on checksum failure.
Check for SMART drive (optional)
Shadow option ROMs
Set up Power Management
Initialize security engine (optional)
Enable hardware interrupts
Determine number of ATA and SCSI
drives
Set time of day
Check key lock
Initialize Typematic rate
Erase F2 prompt
Scan for F2 key stroke
Enter SETUP
Clear Boot flag
Check for errors
POST Routine Description
Chapter 4