IEI Integration IMBA-9454 v4.02 - Manual (Page 146)

IMBA-9454G Motherboard
Page 128
 USB 2.0 Controller [Enabled]
Use the USB 2.0 Controller BIOS option to enable or disable the USB 2.0 controller

Disabled USB 2.0 controller disabled

Enabled D EFAULT USB 2.0 controller enabled
 Legacy USB Support [Enabled]
Use the Legacy USB Support BIOS option to enable USB mouse and USB keyboard
support.
Normally if this option is not enabled, any attached USB mouse or USB keyboard does not
become available until a USB compatible operating system is fully booted with all USB
drivers loaded. When this option is enabled, any attached USB mouse or USB keyboard
can control the system even when there is no USB driver loaded onto the system.

Disabled Legacy USB support disabled

Enabled D EFAULT Legacy USB support enabled

Auto Legacy USB support disabled if no USB devices are
connected
 USB2.0 Controller Mode [HiSpeed]
The USB 2.0 Controller Mode BIOS option sets the speed of the USB 2.0 controller.

FullSpeed The controller is capable of operating at full speed
(12Mbits/second)

HiSpeed D EFAULT The controller is capable of operating at high speed
(480Mbits/second)
6.4 PCI/PnP
Use the PCI/PnP menu (BIOS Menu 15) to configure advanced PCI and PnP settings.