User Guide

4-22
Chapter 4: BIOS Setup
USB Configuration
Legacy USB Support [Enabled]
Allows you to enable or disable the support for legacy USB devices. If no USB device are
connected,thelegacyUSBsupportisdisabled.
Congurationoptions:[Enabled][Disabled][Auto]
XHCI Hand-off [Disabled]
ThisfunctionsasaworkaroundforOSeswithoutXHCIhand-offsupport.
Congurationoptions:[Enabled][Disabled]
USB Mass Storage Driver Support [Enabled]
This allows you to enable or disable the USB Mass Storage driver support.
Congurationoptions:[Disabled][Enabled]
Port 60/64 Emulation [Enabled]
This allows you to enable the I/O port 60h/64h emulation support. This should be enabled for
thecompleteUSBkeyboardlegacysupportfornon-USBawareOSes.
Congurationoptions:[Disabled][Enabled]