ix
5D
Onboard I/O Init
Initializing onboard superIO
5E Reserved
5F Reserved
60
Setup enable
Display setup message and enable setup
functions
61 Reserved
62 Reserved
63
Initialize & Install
Mouse
Detect if mouse is present, initialize
mouse, install interrupt
vectors.
64 Reserved
65
PS2 Mouse special
Special treatment to PS2 Mouse port
66 Reserved
67
ACPI init
ACPI sub-system initializing
68 Reserved
69 Setup
Cache
Controller
Initialize cache controller.
6A Reserved
6B
Setup Entering
Enter setup check and auto-
configuration check up
6C Reserved
6D Initialize
Floppy
Drive & Controller
Initialize floppy disk drive controller
and any drives.
6E Reserved
6F
FDD install
Install FDD and setup BIOS data area
parameters
70 Reserved
71 Reserved
72 Reserved
73 Initialize
Hard
Drive & Controller
Initialize hard drive controller and any
drives.
74 Reserved
75
Install HDD
IDE device detection and install
76 Reserved
77
Detect & Initialize
Serial/Parallel
Ports
Initialize any serial and parallel
ports (also game port).
78 Reserved
79 Reserved
7A
Detect & Initialize
Math Coprocessor
Initialize math coprocessor.
7B Reserved
7C
HDD Check for Write
protection
HDD check out
7D Reserved
7E Reserved
7F
POST error check
Check POST error and display them
and ask for user intervention
80 Reserved
81 Reserved
82
Security Check
Ask password security (optional).
83
Write CMOS
Write all CMOS values back to RAM and
clear screen.
84
Pre-boot Enable
Enable parity checker
Enable NMI, Enable cache before boot.
85
Initialize
Initialize any option ROMs present
Option ROMs from C8000h to EFFFFh.
NOTE: When FSCAN option is enabled,
ROMs initialize from C8000h to F7FFFh.
86 Reserved
87 Reserved
88 Reserved
89 Reserved
8A Reserved
8B Reserved