70
Chapter 6
Code (hex)
Name
Description
44
Reserved
-
45
Detect and Initialize Math
Detects and initializes the math co-processor.
Co-processor
46-4D
Reserved
-
4E
Manufacturing POST Loop
Reboots if Manufacturing POST Loop pin is set. Otherwise, displays any
or Display Messages
messages (i.e., any non-fatal errors that were detected during POST) and enters
Setup.
4F
Security Check
Asks for security password (optional).
50
Write CMOS
Writes all CMOS values back to RAM and clears the screen.
51
Pre-boot Enable
Enables the parity checker and NMI. Enables cache before boot.
52
Initialize Option ROMs
Initializes any option ROMs present from C8000h to EFFFh. Note: When
FSCAN option is enabled, ROMs initialize from C8000h to F7FFFh.
53
Initialize Time Value
Initialize time value in 40h: BIOS area.
60
Setup Virus Protect
Sets up virus protection according to Setup.
61
Set Boot Speed
Sets system speed for boot.
62
Setup NumLock
Sets up NumLock status according to Setup.
63
Boot Attempt
Sets low stack. Boots via INT 19h.
B0
Spurious
Appears if interrupt occurs in protected mode.
B1
Unclaimed NMI
If unmasked NMI occurs, press F1 to disable NMI, and F2 to reboot.
E1-EF
Setup Pages
E1-Page 1, E2-Page 2, etc.
FF
Boot
Boots system.
