User Manual

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Chapter 4: BIOS Setup
4.5.12 USB Configuration
Legacy USB Support [Enabled]
Allows you to enable or disable Legacy USB device support.
Congurationoptions:[Enabled][Disabled][Auto]
XHCI Hand-off [Enabled]
ThisisaworkaroundforOSeswithoutXHCIhand-offsupport.TheXHCIownershipchange
should be claimed by XHCI driver.
Congurationoptions:[Disabled][Enabled]
EHCI Hand-off [Disabled]
ThisisaworkaroundforOSeswithoutEHCIhand-offsupport.TheEHCIownershipchange
should be claimed by EHCI driver.
Congurationoptions:[Disabled][Enabled]
USB Mass Storage Driver Support [Enabled]
Allows you to enable or disable the USB Mass Storage drvier 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]