Gigabyte GA-990XA-UD3 R5 - Page 48

BIOS Setup
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& HD Audio Azalia Device
 Enablesordisablestheonboardaudiofunction.(Default:Enabled)
If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to
Disabled.
& Onboard USB Device
 EnablesordisablestheintegratedUSBcontroller.(Default:Enabled)
& Onboard LAN Controller
 EnablesordisablestheonboardLANfunction.(Default:Enabled)
If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item to
Disabled.
& Onboard USB3.0 Controller (VIA
®
VL805 USB Controller)
Enables or disables the VIA
®
VL805USBcontroller.(Default:Enabled)
& Legacy USB Support
 AllowsUSBkeyboard/mousetobeusedinMS-DOS.(Default:Enabled)
& XHCI Hand-off
Determines whether to enable XHCI Hand-off feature for an operating system without XHCI Hand-off
support.(Default:Enabled)
& EHCI Hand-off
Determines whether to enable EHCI Hand-off feature for an operating system without EHCI Hand-off
support.(Default:Disabled)
& Port 60/64 Emulation
Enables or disables emulation of I/O ports 64h and 60h. This should be enabled for full legacy support
for USB keyboards/mice in MS-DOS or in operating system that does not natively support USB devices.
(Default:Disabled)
& USB Storage Devices
Displays a list of connected USB mass storage devices. This item appears only when a USB storage device
is installed.
& IOMMU Controller
 EnablesordisablesAMDIOMMUsupport.(Default:Enabled)
` Trusted Computing
& TPM SUPPORT
 EnablesordisablesTrustedPlatformModule(TPM).SetthisitemtoEnable when a TPM device is installed.
(Default:Disable)