Asus P4P800-MX - Manual (Page 52)

2-14 Chapter 2: BIOS information
USB Function [8 USB Ports]
Allows you to set the number of USB ports to activate. Configuration options:
[Disabled] [2 USB Ports] [4 USB Ports] [6 USB Ports] [8 USB Ports]
Legacy USB Support [Auto]
Allows you to enable or disable support for legacy USB devices. 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 [Enabled]
Allows you to enable or disable the USB 2.0 controller. 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]
USB Mass Storage Device Configuration
USB Mass Storage Reset Delay [20 Sec]
Allows you to select the number of seconds POST waits for the USB mass
storage device after the start unit command. The message “No USB mass
storage device detected” appears if none is installed in the system.
Configuration options: [10 Sec ] [20 Sec] [30 Sec] [40 Sec]
The Device items appear only when there are installed USB devices.