User Manual
Chapter 4
AMI UEFI BIOS Setup
- 44 -
4.2.2.6 USB Configuration
BIOS Setting
Description
Setting Option
Effect
Legacy USB
Support
User can enable
or disable USB
port.
Disabled
Will keep USB
devices
available only
for EFI
applications.
Enabled
Enable all the
USB devices
XHCI Hand
‐
off
This is a
workaround for
OSs without XHCI
hand
‐
off support.
Disabled
Disables this
function
Enabled
Enables this
function
EHCI Hand
‐
off
This is a
workaround for
OSs without ECHI
hand
‐
off support.
Disabled
Disables this
function
Enabled
Enables this
function
USB Mass
Storage Driver
Support
User can Enable
or disable USB
mass storage
driver support.
Disabled
Disables this
function
Enabled
Enables this
function