Supermicro X9QR7-TF+ - South Bridge Configuration

4-14
X9QR7-TF+/X9QRi-F+ Motherboard User’s Manual
Thermal Throttling
Throttling improves reliability and reduces power consumption in the proces-
sor via automatic voltage control during processor idle states. The options are
Disabled and CLTT (Closed Loop Thermal Throttling).
South Bridge Conguration
This feature allows the user to con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.
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. 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 disable legacy sup-
port if USB devices are not 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.