User`s manual

Chapter 4: AMI BIOS

4-11

Port 64h/60h Emulation

Select Enabled to enable Port 64h/60h emulation for complete USB keyboard sup-

port for operating systems that are not compatible with USB devices. The options

are Enabled and Disabled.

USB 2.0 Controller (Available when the item: USB Functions is disabled)

This feature displays the current USB controller used in the motherboard.

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.

HDA Controller

Select Enabled to activate the onboard High-Deﬁ nition Audio controller. The options

are Enabled and Disabled.

Frontside Audio Mode

Select HD Audio to enable high-deﬁ nition audio support for the front_side audio

connection. Select AC'97 to use AC'97 for the front_side audio connection. The

options are HD Audio and AC'97.

Route Port 80h Cycle to

Use this item to decide where to route the signals of Port 80h Cycle to. The Op-

tions are LPC and PCI.

IDE/Floppy Conﬁ guration

When this submenu is selected, the AMI BIOS automatically detects the presence

of the IDE devices and displays the following items:

SATA#1 Conﬁ guration

Select Compatible to set SATA#1 to legacy compatibility mode. Select Enhanced

to set SATA#1 to native SATA mode. The options are Disabled, Compatible and

Enhanced.