Asus M2N-X - Manual (Page 72)

2-0 Chapter 2: BIOS setup
USB 1.1 Controller [Enabled]
Allows you to enable or disable the USB 1.1 Controller.
Configuration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 Controller.
Configuration options: [Enabled] [Disabled]
Legacy USB Support [Enabled]
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: [FullSpeed] [HiSpeed]
The Module Version and USB Devices Enabled items show the
auto-detected values. If no USB device is detected, the item shows
None.
2.4.6 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 - 2.24.1-13.4
USB Devices Enabled:
None
USB 1.1 Controller [Enabled]
USB 2.0 Controller [Enabled]
Legacy USB Support [Enabled]
USB 2.0 Controller Mode [HiSpeed]
IRQ-xx assigned to [PCI Device]
When set to [PCI Device], the specific IRQ is free for use of PCI/PnP
devices. When set to [Reserved], the IRQ is reserved for legacy ISA devices.
Configuration options: [PCI Device] [Reserved]