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4-10

X9DRD-iF/LF Motherboard User’s Manual

Short Duration Power Limit

This item displays the time period during which short duration power is main-

tained.

ChipsetConguration

North Bridge

This feature allows the user to congure the settings for the Intel North Bridge.

IntegratedIOConguration

Intel VT-d

Select Enabled to enable Intel Virtualization Technology support for Direct I/O

VT-d by reporting the I/O device assignments to the VWM (Virtual Working

Memory) through the DMAR ACPI Tables. This feature offers fully-protected

I/O resource sharing across Intel platforms, providing greater reliability, security

and availability in networking and data-sharing. The options are Enabled and

Disabled.

Intel I/OAT

The Intel I/OAT (I/O Acceleration Technology) signicantly reduces CPU over-

head by leveraging CPU architectural improvements, freeing the system resource

for other tasks. The options are Disabled and Enabled.

DCA Support

Select Enabled to use Intel's DCA (Direct Cache Access) Technology to improve

data transfer efciency. The options are Enabled and Disabled.

IIO 1 PCIe Port Bifurcation Control

This submenu congures the following IO PCIe Port Bifurcation Control settings

for IIO 1 PCIe ports to determine how the available PCI-Express lanes to be

distributed between the PCI-Exp. Root Ports.

CPU1 Slot3 PCI-E 3.0 x8 Link Speed

This feature allows the user to set the PCI-Exp bus speed for the slot specied

above. The options are Gen1 (Generation 1), Gen2 and Gen3.

CPU1 Slot4 PCI-E 3.0 x8 Link Speed

This feature allows the user to set the PCI-Exp bus speed for the slot specied

above. The options are Gen1 (Generation 1), Gen2 and Gen3.

Supermicro X9DRD-iF User Manual

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