User`s guide
Chapter 7: BIOS
7-11
South Bridge Conguration
This feature allows the user to congure the settings for the Intel ICH South
Bridge chipset.
USB Functions
This feature allows the user to decide the number of onboard USB ports to be
enabled. The Options are: Disabled, 2 USB ports, 4 USB ports, 6 USB ports,
8 Ports, 10 Ports and 12 USB ports.
Legacy USB Support
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy
USB support will be automatically enabled if a legacy USB device is installed
on the motherboard, and vise versa. The settings are Disabled, Enabled and
Auto.
USB 2.0 Controller
Select Enabled to activate the onboard USB 2.0 controller. The options are
Enabled and Disabled.
USB 2.0 Controller Mode
This setting allows you to select the USB 2.0 Controller mode. The options
are Hi-Speed (480 Mbps) and Full Speed (12 Mbps).
BIOS EHCI Hand-Off
Select Enabled to enable BIOS Enhanced Host Controller Interface support
to provide a workaround solution for an operating system that does not have
EHCI Hand-Off support. When enabled, the EHCI Interface will be changed
from the BIOS-controlled to the OS-controlled. The options are Disabled and
Enabled.