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Upon Request: GA20 can be disabled using BIOS services.
Always: Do not allow disabling GA20.
Option ROM Message
Sets display mode for Option ROM.
Force BIOS: To force to a BIOS-compatible output. This will show the option
ROM messages.
Keep Current: To keep the current video mode. This will suppress option ROM
messages. Option ROMs requiring interactive inputs may not work properly in
this mode.
INT19 Trap Response
This item allows BIOS reaction on INT19 trapping by option ROM.
Immediate: Execute the trap right away.
Postponed: Execute the trap during legacy boot.
HDD Connection Order
Some OS require HDD handles to adjusted, i.e. OS is installed on drive 80h.
Options: Adjust, Keep.
Boot option filter
This option controls what devices system can boot to UEFI or Legacy.
Options: UEFI and Legacy, Legacy only, UEFI only.
Option ROM execution
This field controls the execution policy for Network, Storage, Video and other
PCI devices.
Options: Do not launch, Legacy, UEFI.
