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Chapter 4 145
0xB6 If password on boot is enabled, a call is made to Setup to
check password. If the user does not enter a valid password,
Setup does not return.
LBT Core
0x98 Search for option ROMs. Rom scan the area from C800h for a
length of BCP_ROM_Scan_Size (or to E000h by default) on
every 2K boundary, looking for add on cards that need
initialization.
LBT Core
0x93 Build the MPTABLE for multi-processor boards LBT Core
0xD9 IPMI late init LBT Core
0x9C Set up Power Management. Initiate power -management state
machine.
LBT Core
0xC7 Late note dock init LBT Core
0x9E Enable hardware interrupts LBT Core
0xA0 Setup time tick for current date/time LBT Core
0xA2 Setup Numlock indicator. Display a message if key switch is
locked.
LBT Core
0xA4 Initialize typematic rate LBT Core
0xDB StrongROM Test LBT Core
0xE2 OEM security key test LBT Core
0xC2 Write PEM errors. LBT Core
0xBA Initialize the SMBIOS header and sub-structures. LBT Core
0xC3 Display PEM errors. LBT Core
0xA8 Overwrite the "Press F2 for Setup" prompt with spaces,
erasing it from the screen.
LBT Core
0xAA Scan the key buffer to see if the F2 key was struck after
keyboard interrupts were enabled. If an F2 keystroke is found,
set a flag.
LBT Core
0xE1 Start Periodic Timer (TC Subscribe) LBT Core
0xAC Check if "Enter SETUP" is pressed. LBT Core
0x8F Count the number of ATA drives in the system and update the
number in bdaFdiskcount.
LBT Core
0x91 Configure the local bus IDE timing register based on the drives
attached to it.
LBT Core
0x9F Check the total number of Fast Disks (ATA and SCSI) and
update the bdaFdiskCount.
LBT Core
0xD7 Check if FirstWare HPA exists LBT Core
0xAE Clear ConfigFailedBit and InPostBit in CMOS. LBT Core
0xB0 Check for errors and decide if needs to run Setup. LBT Core
0xB2 Change status bits in CMOS and/or the TrustedCore data area
to reflect the fact that POST is complete.
LBT Core
0xB5 Fade out OEM Logo or post string LBT Core
0xC5 End hotkey detection (Server BIOS) LBT Core 16
0xBE If BCP option is enabled, clear the screen before booting. LBT Core
0xB6 If password on boot is enabled, a call is made to Setup to
check password. If the user does not enter a valid password,
Setup does not return.
LBT Core
0xBC Clear parity-error latch LBT Core
POST
Code
Function Phase Component