Biostar A68MHD2 Версия 6.1 [11/31] Usb configuration

A68MHD2 / A68MDP / A68MGP / A70MGP UEFI BIOS Manual

USB Configuration

Legacy USB Support

The item allows you to enable Legacy USB support. AUTO option

disables legacy support if no USB devices are connected. DISABLE

option will keep USB devices available only for EFI applications.

Options: Enabled (Default) / Disabled / Auto

Legacy USB3.0 Support

The item allows you to enable or disable Legacy USB3.0 (XHCI)

Controller support.

Options: Enabled (Default) / Disabled

XHCI Hand-Off

This is a workaround for OSes without XHCI hand-off support. The XHCI

ownership change should be claimed by XHCI driver.

Options: Enabled (Default) / Disabled

EHCI Hand-Off

This is a workaround for OSes without EHCI hand-off support. The EHCI

ownership change should be claimed by EHCI driver.

Options: Disabled (Default) / Enabled

Mass Storage Devices

Mass storage device emulation type. ‘Auto’ enumerates devices according

to their media format. Optical drives are emulated as ‘CDROM’, drivers

with no media will be emulated according to a driver type.

Options: Auto (Default) / Floppy / Forced FDD / Hard Disk / CR-ROM