User`s manual

Chapter 7: BIOS

7-11

SouthBridge Conﬁ guration

This feature allows the user to conﬁ gure 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, and Enabled.

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.