User`s manual

Legacy USB Support

Set to [Enabled] if your need to use any USB device in the operating system

that does not support or have any USB driver installed, such as DOS and SCO

Unix. Set to [Disabled] only if you want to use any USB device other than the

USB mouse.

BIOS EHCI Hand-Off

This setting allows you to enable or disable a workaround for operating

systems without EHCI (Enhanced Host Controller Interface) hand-off support.

The Enhanced Host Controller Interface (EHCI) specification describes the

Revision 2.0.

USB Mass Storage Device Configuration

USB Mass Storage Reset Delay

This setting controls the number of seconds the POST waits for the USB

mass storage device after the start unit command is sent.

Emulation Type

This setting enables you to set the type of device you want the USB mass

storage device to emulate.