Supermicro 6028R-WTR, User Manual

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Chapter 7: BIOS
7-13
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South Bridge
This feature allows the user to confi gure the settings for the Intel PCH chip.
PCH Information
This feature displays the following PCH information.
Name : This item displays the name of the PCH chip.
Stepping : This item displays the PCH stepping.
USB Devices : This item displays the USB devices detected by the BIOS.
All USB Devices
This feature enables all USB ports/devices. The options are Disabled and Enabled .
(If set to Enabled, EHCI Controller 1 and Controller 2 will appear.)
EHCI Controller 1/EHCI Controller 2 (Available when All USB Devices is set
to Enabled)
Select Enabled to enable EHCI (Enhanced Host Controller Interface) Controller
1 or Controller 2 to enhance system performance. The options are Disabled and
Enabled .
Legacy USB Support (Available when USB Functions is not Disabled)
Select Enabled to support legacy USB devices. Select Auto to enable legacy support
if a legacy USB device is present. Select Disabled to have USB devices available
for EFI (Extensive Firmware Interface) applications only. The settings are Disabled,
Enabled and Auto.
Port 60/64 Emulation
Select Enabled to enable I/O port 60h/64h emulation support for the legacy USB
keyboard so that it can be fully supported by the operating systems that does not
recognize a USB device. The options are Disabled and Enabled .
EHCI Hand-Off
This item is for operating systems that do not support Enhanced Host Controller
Interface (EHCI) hand-off. When enabled, EHCI ownership change will be claimed
by the EHCI driver. The options are Disabled and Enabled.