Manual

3-30 Chapter 3: BIOS setup
3.5.4 USB Conguration
The items in this menu allows you to change the USB-related features. Select an
item then press <Enter> to display the conguration options.
Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
USB Conguration
USB Devices Enabled:
1 Mouse
USB Functions [Enabled]
USB 2.0 Controller [Enabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
Legacy USB Support [Auto]
Enables support for
legacy USB. AUTO
option disables
legacy support if
no USB devices are
connected.
BIOS SETUP UTILITY
Advanced
The USB Devices Enabled item shows the auto-detected values. If no USB
device is detected, the item shows None.
USB Functions [Enabled]
Allows you to enable or disable the USB Host Controllers.
Conguration options: [Disabled] [Enabled]
The following items appear only when you set USB Functions to [Enabled].
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Conguration options: [Enabled] [Disabled]
USB 2.0 Controller Mode [HiSpeed]
Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or
FullSpeed (12 Mbps). Conguration options: [FullSpeed] [HiSpeed]
The USB 2.0 Controller Mode item appears only when you enable the USB
2.0 Controller.
BIOS EHCI Hand-off [Enabled]
Allows you to enable the support for operating systems without an EHCI hand-off
feature. Conguration options: [Disabled] [Enabled]
Legacy USB Support [Auto]
Allows you to enable or disable the support for legacy USB devices. 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. Conguration options: [Disabled] [Enabled] [Auto]