Supermicro Supero X8DAi User Manual page 68

X8DA3/X8DAi User's Manual
will enhance overall system performance by providing direct cache access for data
transferring. The options are Enabled and Disabled.
NUMA Support
Select Enabled to use the feature of Non-Uniform Memory Access to improve CPU
performance. The options are Enabled and Disabled.
Intel VT-d
Select Enabled to enable Intel's Virtualization Technology support for Direct I/O VT-d
by reporting the I/O device assignments to VMM through the DMAR ACPI Tables.
This feature offers fully-protected I/O resource-sharing across the Intel platforms,
providing the user with greater reliability, security and availability in networking and
data-sharing. The settings are Enabled and Disabled.
SouthBridge Confi guration
This feature allows the user to confi gure the settings for the Intel ICH South Bridge
chipset.
USB Functions
This feature allows the user to decide the number of onboard USB ports to be en-
abled. The Options are: Disabled, 2 USB ports, 4 USB ports, 6 USB ports, 8 Ports,
10 Ports and 12 USB ports.
Legacy USB Support
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, and Enabled.
USB 2.0 Controller
Select Enabled to activate the onboard USB 2.0 controller. The options are Enabled
and Disabled. (The manufacturer's default setting is Enabled. This setting cannot
be changed by the user.)
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.
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