Asus V3-P5G965 - Manual (Page 84)

5-20 Chapter 5: BIOS setup
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy
operating systems (OS). 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. Configuration options: [Disabled] [Enabled] [Auto]
Port 64/60 Emulation [Disabled]
Allows you to disable or 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. Configuration options: [Disabled] [Enabled]
USB 2.0 Controller Mode [HiSpeed]
Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or
Full Speed (12 Mbps). Configuration options: [HiSpeed] [Full Speed]
BIOS EHCI Hand-Off [Enabled]
Allows you to enable support for operating systems without an EHCI
hand-off feature. Configuration options: [Disabled] [Enabled]
The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows
None.
5.4.2 USB Configuration
The items in this menu allows you to change the USB-related features.
Select an item then press <Enter> to display the configuration options.
USB Configuration
Module Version - 2.24.0-11.4
USB Devices Enabled:
None
Legacy USB Support [Auto]
Port 64/60 Emulation [Disabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]