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AIMB-251 Series
Code (hex)
Name
7D
Reserved
7E
Reserved
7F
POST error check
80
Reserved
81
Reserved
82
Security Check
83
Write CMOS
84
Pre-boot Enable
85
Initialize Option ROMs
86
Reserved
87
Reserved
88
Reserved
89
Reserved
8A
Reserved
8B
Reserved
8C
Reserved
8D
Reserved
8E
Reserved
8F
Reserved
90
Reserved
91
Reserved
92
Reserved
93
Boot Medium detection
94
Final Init
95
Special KBC patch
96
Boot Attempt
FF
Boot
100 AIMB-251 Series User's Manual
Description
Check POST error and display them and ask for user intervention
Ask password security (optional).
Write all CMOS values back to RAM and clear screen.
Enable parity checker. Enable NMI, Enable cache before boot.
Initialize any option ROMs present from C8000h to EFFFFh.
NOTE: When FSCAN option is enabled, ROMs initialize from
C8000h to F7FFFh.
Read and store boot partition head and cylinders values in RAM
Final init for last micro details before boot
Set system speed for boot. Setup NumLock status according to
Setup
Set low stack Boot via INT 19h.
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