Chapter Four 46
BIOS Setup
USB Configuration Sub-Menu
In USB Configuration Sub-Menu, you can change the configuration of your USB module and
devices.
BIOS SETUP UTILITY
Main
Advanced
Boot
Security
Exit
USB Configuration
Enable support for
legacy USB. AUTO
option disables
legacy support if
no USB devices are
connected.
←
Select
Screen
↑↓
Select
Item
+- Change
Option
F1
General
Help
F10
Save and Exit
ESC Exit
Module Version – 2.23.4-13.4
USB Devices Enabled
:
2 Hubs
Legacy
USB
Support
[Enabled]
USB 2.0 Controller Mode
[HiSpeed]
BIOS
EHCI
Hand-Off
[Enabled]
USB Configuration Sub-Menu Selections
You can make the following changes under the USB Configuration Sub-Menu Selections.
Feature
Options
Description
Legacy USB Support
Disabled
Enabled
Auto
Enable support for legacy USB.
AUTO option disables legacy
support if no USB devices are
connected.
USB 2.0 Controller
Mode
FullSpeed
HiSpeed
Configure the USB 2.0 controller in
HiSpeed (480Mbps) or FullSpeed
(12Mbps).
BIOS EHCI Hand-Off
Disabled
Enabled
This is a workaround for OSes
without EHCI hand-off support. The
EHCI ownership change should
claim by EHCI driver.
