Asus A8V-X - Manual (Page 60)

2-18 Chapter 2: BIOS setup
USB 1.1 Ports Configuration [USB 8 Ports]
Allows you to configure the USB 1.1 ports.
Configuration options: [Disabled] [USB 2 Ports] [USB 4 Ports]
[USB 6 Ports] [USB 8 Ports]
USB 2.0 Ports Enable [Enable]
Allows you to enable or disable the USB 2.0 ports.
Configuration options: [Disabled] [Enable]
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]
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 or disable the BIOS EHCI hand-off support.
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.
2.4.2 USB Configuration
The items in this menu allows you to change the USB-related features.
Select an item then press to display the configuration options.
USB Configuration
Module Version - 2.24.0-10.4
USB Devices Enabled: None
USB 1.1 Ports Configuration [USB 8 Ports]
USB 2.0 Ports Enable [Enable]
Legacy USB Support [Auto]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]