Chapter 4: AMI BIOS
4-9
PCI Express Port - Gen X
This feature enables or disables the PCI Express Gen X port. The options
are Disabled, Enabled and
Auto.
De-emphasis Control
Use this feature to configure the de-emphasis control on PEG. The options
are
-6 dB
and -3.5 dB.
Detect Non-Compliance Device
This feature enables or disables the detection of a non-compliant device
that is attached to the PCI Express Graphics (PEG) port. The options are
Disabled
, and Enabled
.
South Bridge Configuration
This item displays the current South Bridge Revision.
USB Functions
This feature allows the user to decide the number of onboard USB ports to
be enabled. The Options are Disabled and
Enabled
.
Legacy USB Support (available if USB Functions above is Enabled)
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy
USB support will be automatically enabled if a legacy USB device is installed
on the motherboard, and vise versa. The settings are Disabled,
Enabled
and
Auto.
BIOS EHCI Hand-Off (available if USB Functions above is Enabled)
This item is for Operating Systems that does not support Enhanced Host
Controller Interface (EHCI) hand-off. When enabled, EHCI ownership change
will be claimed by the EHCI driver. The settings are
Enabled
and Disabled.
Port 60/64 Emulation (available if USB Functions above is Enabled)
Select Enabled to activate I/O port 60h/64h emulation support. This must be
enabled for complete USB keyboard legacy support for Operating Systems
that are not compatible with USB devices. The settings are
Enabled
and
Disabled.
