Supero X10DAC, User Manual

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Chapter 4: AMI BIOS
4-11
IIO2 Port 2A Link Speed
Use this item to configure the link speed of a PCI-E device installed on the PCI-
E slot specified by the user. The options are Gen1 (2.5 GT/s), Gen2 (5 GT/s),
Gen3 (8 GT/s), and Auto .
IIO2 Port 3C Link Speed
Use this item to configure the link speed of a PCI-E device installed on the PCI-
E slot specified by the user. The options are Gen1 (2.5 GT/s), Gen2 (5 GT/s),
Gen3 (8 GT/s), and Auto .

IOAT (Intel® IO Acceleration) Configuration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support,
which will significantly reduce CPU overhead by leveraging CPU architectural
improvements and freeing the system resource for other tasks. The options are
Enable and Disable.
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are
Disable
and Enable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support which will allow certain
transactions to violate the strict-ordering rules of PCI bus for a transaction to be
completed prior to other transactions that have already been enqueued earlier.
The options are
Disable and Enable.

Intel VT for Directed I/O (VT-d)
Intel VT for Direct I/O (VT-d)
Intel
®
VT for Directed I/O (VT-d)
Select Enable to use Intel Virtualization Technology support for Direct I/O VT-d
support
by reporting the I/O device assignments to the VMM (Virtual Machine
Monitor) 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
Enable and Disable.
Interrupt Remapping
Select Enable for Interrupt Remapping support to enhance system performance.
The options are
Enable and Disable.