The following items appear only when the USB Functions item is set to [Enabled].

USB 2.0 Controller [Enabled]

Allows you to enable or disable the USB 2.0 controller.

Configuration options: [Enabled] [Disabled]

Legacy USB Support [Auto]

Allows you to enable or disable support for legacy USB. The AUTO option disables legacy support if there is no USB device connected.

Configuration options: [Disabled] [Enabled] [Auto]

USB2.0 Controller mode [HiSpeed]

Allows you to set the USB2.0 controller mode to HiSpeed (480 Mbps) or FullSpeed (12 Mbps).

Configuration options: [HiSpeed] [FullSpeed]

BIOS EHCI Hand-Off [Enabled]

Allows yout to enable or disable the BIOS EHCI Hand-Off support function. Configuration options: [Disabled] [Enabled]

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Chapter 5: BIOS setup