51
S1571 D1181-001 http://www.tyan.com
32 Test EISA Extended Memory
If EISA Mode flag is set then test EISA memory
found in slots initialization.
NOTE: This test is skipped in ISA mode and can
be skipped with ESC key in EISA mode.
33-3B Reserved
3C Setup Enabled
3D Initialize & Install Mouse
Detect if mouse is present, initialize mouse, install
interrupt vectors.
3E Setup Cache Controller
Initialize cache controller.
3F Reserved
BF Chipset Initialization
Program chipset registers with Setup values.
40
Display virus protect disable or enable.
41 Initialize Floppy Drive &
Initialize floppy disk drive controller and any drives.
Controller
42 Initialize Hard Drive &
Initialize hard drive controller and any drives.
Controller
43 Detect & Initialize Serial/
Initialize any serial and parallel ports (also game
Parallel Ports
port).
44 Reserved
45 Detect & Initialize Math
Initialize math coprocessor.
Coprocessor
46-47 Reserved
48-4D Reserved
4E Manufacturing POST Loop or
Reboot if Manufacturing POST Loop pin is set.
Display Messages.
Otherwise display any messages (i.e. any non-
fatal errors that were detected during POST) and
enter Setup.
4F Security Check
Ask password security (optional).
50 Write CMOS
Write all CMOS values back to RAM and clear
screen.
51 Pre-boot Enable
Enable parity checker.
Enable NMI, Enable cache before boot.
52 Initialize Option ROMs
Initialize any option ROMs present from C8000h to
EFFFFh.
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
Setup virus protect according to Setup
61 Set Boot Speed
Set system speed for boot
62 Setup NumLock
Setup NumLock status according to Setup.
63 Boot Attempt
Set low stack.
Boot via INT 19h.
B0 Spurious
If interrupt occurs in protected mode.
B1 Unclaimed NMI
If unmasked NMI occurs, press F1 to disable
NMI, F2 reboot.
E1-EF Setup Pages
E1- Page 1, E2 - Page 2, etc.
FF Boot
System Resources
