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ASUS X99-A
3-53
Chapter 3
DirectKey (DRCT) [Enabled]
[Disabled] Disables the DirectKey button. The system will only power on or off when
you press the DirectKey button.
[Enabled] Allows the system to power on and go to the BIOS Setup directly when you
press the Reset button. Connect the 2-pin connector of the chassis reset
buton cable to the onboard DRCT header.
Bootup NumLock State [On]
This item allows you to on/off power-on state of the NumLock.
Conguration options: [On] [Off]
Wait For ‘F1’ If Error [Enabled]
This item allows your system to wait for the <F1> key to be pressed when error occurs.
Conguration options: [Disabled] [Enabled]
Option ROM Messages [Force BIOS]
This item allows you to set the display mode for Option ROM.
Conguration options: [Force BIOS] [Keep Current]
INT19 Trap Response [Immediate]
[Immediate] Executes the trap for INT19 immediately.
[Postponed] Executes the trap during legacy boot.
Above 4G Decoding [Disabled]
This item allows you to decode the 64-bit capable devices above 4G address space. Ensure
that your system supports 64-bit PCI decoding.
Conguration options: [Disabled] [Enabled]
Setup Mode [EZ Mode]
[Advanced Mode] This item allows you to go to Advanced Mode of the BIOS after POST.
[EZ Mode] This item allows you to go to EZ Mode of the BIOS after POST.
CSM (Compatibility Support Module)
This item allows you to congure the CSM (Compatibility Support Module) items to fully
support the various VGA, bootable devices and add-on devices for better compatibility.
Launch CSM [Enabled]
[Auto] The system automatically detects the bootable devices and the add-
on devices.
[Enabled] For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows
®
UEFI mode.
[Disabled] Disables the CSM to fully support the non-UEFI driver add-on devices
or the Windows
®
UEFI mode.