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Chapter 4: AMI BIOS

4-15

IOAT Conguration

Enable I/OAT

Select Enable to enable Intel I/OAT (I/O Acceleration Technology), which signi-

cantly reduces CPU overhead by leveraging CPU architectural improvements

and freeing the system resources for other tasks. The options are Enable and

Disable.

No Snoop

Select Enable to support no-snoop mode for each caching agent. The options

are Disable and Enable.

Relaxed Ordering

Select Enable to enable Relaxed Ordering support which will allow certain trans-

actions to violate the strict-ordering rules of PCI and to be completed prior to

other transactions that have already been enqueued. 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.

QPI (Quick Path Interconnect) Conguration

The following QPI information will be displayed:

•Number of CPU

•Number of IIO

•Current QPI Link Speed: This item displays the current QPI Link speed.

Supero X10DRi User Manual

Questions and Answers: