Supermicro Supero SUPERSERVER 5086B-TRF, User Manual

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Chapter 7: BIOS
7-19
Coherency Support
Select Enabled to enable Non-Isoch VT-d Engine Coherency support. The op-
tions are Enabled and Disabled.
ATS Support
Select Enabled to enable VT-d Engine Address Translation Services support.
The options are
Enabled and Disabled.
Pass-through DMA
Select Enabled to enable Isoch/Non-Isoch VT-d Engine Pass-through DMA sup-
port. The options are
Enabled and Disabled.
Intel® I/OAT
The Intel I/OAT (I/O Acceleration Technology) signi fi cantly reduces CPU overhead
by leveraging CPU architectural improvements, freeing resources for more other
tasks. The options are
Disabled and Enabled.
DCA Support (Available when Intel I/OAT is enabled)
Select Enabled to use Intel's DCA (Direct Cache Access) Technology for data
transferring enhancement. The options are
Enabled and Disabled.
PCIe Gen1 Device Support (Available when Intel I/OAT is enabled)
Select Enabled to support PCI-Express Gen. 1 devices. The options are Enabled
and
Disabled .
IOH PCIe Port Bifurcation Support
This feature displays the following IOH PCIe Port Bifurcation Control settings,
which indicate how PCI-Express connections are split into different PCI-E signals
for various device support.
IOH1/IOU2
•
IOH1/IOU0
•
IOH1/IOU1
•
IOH2/IOU2
•
IOH2/IOU0
•
IOH2/IOU1
•