Asus M3N78-VM - Manual (Page 80)

2-32 Chapter 2: BIOS setup
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]
USB Functions [Enabled]
Enables or disables the USB functions. Configuration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Enables or disables the USB 2.0 Controller. Configuration options: [Enabled]
[Disabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for Legacy USB storage devices, including
USB flash drives and USB hard drives. 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: [Full Speed] [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 to display the configuration options.
USB Configuration
Module Version - 2.24.3-13.4
USB Devices Enabled:
None
USB Functions [Enabled]
USB 2.0 Controller [Enabled]
Legacy USB Support [Auto]
USB 2.0 Controller Mode [HiSpeed]
Options
Enable
Disable