Supermicro Supero X8DAH+-F User Manual page 77

Chapter 4: AMI BIOS
South Bridge Configuration
USB Functions
Select Enabled to use onboard USB connections. The Options are: Disabled and
Enabled.
Legacy USB Support
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy
USB support will be automatically enabled if a legacy USB device is installed on
the motherboard, and vise versa. The settings are Disabled, Enabled and Auto.
Port 64h/60h Emulation
Select Enabled to enable Port 64h/60h emulation for complete USB keyboard sup-
port for operating systems that are not compatible with USB devices. The options
are Enabled and Disabled.
USB 2.0 Controller (Available when the item: USB Functions is disabled)
This feature displays the current USB controller used in the motherboard.
USB 2.0 Controller Mode
This setting allows you to select the USB 2.0 Controller mode. The options are
Hi-Speed (480 Mbps) and Full Speed (12 Mbps).
BIOS EHCI Hand-Off
Select Enabled to enable BIOS Enhanced Host Controller Interface support to
provide a workaround solution for an operating system that does not have EHCI
Hand-Off support. When enabled, the EHCI Interface will be changed from the BIOS-
controlled to the OS-controlled. The options are Disabled and Enabled.
HDA Controller
Select Enabled to activate the onboard High-Definition Audio controller. The options
are Enabled and Disabled.
Frontside Audio Mode
Select HD Audio to enable high-definition audio support for the front side audio
connection. Select AC'97 to use AC'97 for the front side audio connection. The
options are HD Audio and AC'97.
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