Gigabyte Z590 D User Manual page 38

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& VGA Support
Allows you to select which type of operating system to boot.
Enables legacy option ROM only.
Auto
EFI Driver
Enables EFI option ROM. (Default)
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
& USB Support
Disable Link
All USB devices are disabled before the OS boot process completes.
Full Initial
All USB devices are functional in the operating system and during the POST.
(Default)
Partial Initial
Part of the USB devices are disabled before the OS boot process completes.
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast. This function is disabled
when Fast Boot is set to Ultra Fast.
& PS2 Devices Support
Disable Link
All PS/2 devices are disabled before the OS boot process completes.
All PS/2 devices are functional in the operating system and during the POST.
Enabled
(Default)
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast. This function is disabled
when Fast Boot is set to Ultra Fast.
& NetWork Stack Driver Support
Disable Link
Disables booting from the network. (Default)
Enables booting from the network.
Enabled
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
& Next Boot After AC Power Loss
Normal Boot
Enables normal bootup upon the return of the AC power. (Default)
Fast Boot
Keeps the Fast Boot settings upon the return of the AC power.
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
& Mouse Speed
Allows you to set the mouse cursor movement speed. (Default: 1 X)
& Windows 10 Features
Allows you to select the operating system to be installed. (Default: Windows 10)
& CSM Support
Enables or disables UEFI CSM (Compatibility Support Module) to support a legacy PC boot process.
Disables UEFI CSM and supports UEFI BIOS boot process only. (Default)
Disabled
Enables UEFI CSM.
Enabled
& LAN PXE Boot Option ROM
Allows you to select whether to enable the legacy option ROM for the LAN controller. (Default: Disabled)
This item is configurable only when CSM Support is set to Enabled.
& Storage Boot Option Control
Allows you to select whether to enable the UEFI or legacy option ROM for the storage device controller.
Do not launch
Disables option ROM.
Enables UEFI option ROM only.
UEFI
Enables legacy option ROM only. (Default)
Legacy
This item is configurable only when CSM Support is set to Enabled.
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