4-20 Chapter 4: BIOS setup
4.4.2 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 1985-2007, American Megatrends, Inc.
BIOS SETUP UTILITY
Advanced
USB Conguration
USB Devices Enabled:
None
USB Functions [Enabled]
USB 2.0 Controller [Enabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-off [Enabled]
Port 64/60 Emulation [Disabled]
Legacy USB Support [Auto]
Options
Disabled
Enabled
The USB Devices Enabled item shows the auto-detected values. If no USB
device is detected, the item shows None.
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 Functions [Enabled]

Allows you to enable or disable the USB Host Controllers.
Conguration options: [Disabled] [Enabled]

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 item.

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]

Port 64/60 Emulation [Disabled]

Allows you to enable or disable the I/O port 60h/64h emulation support. This item
should be enabled for the complete USB keyboard legacy support for non-USB
aware OSes. Conguration options: [Disabled] [Enabled]