2-28 Chapter 2: BIOS setup
USB Controller [USB 1.1 and 2.0]
Allows you to select or disable the USB controller.
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating
systems (OS). Setting to [Auto] allows the system to detect the presence of USB
devices at startup. If detected, the USB controller legacy mode is enabled. If no
USB device is detected, the legacy USB support is disabled.
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
Allows you to enable support for operating systems without an EHCI hand-off