Chapter 4: AMI BIOS
4-15
Non-Transparent Bridge PCIe Port D (Port 3A only)
Select Transparent Bridge to confi gure the device installed on a PCI slot specifi ed
by the user as a transparent bridge (TB) device. Select NTB (Non-Transparent
Bridge) to NTB to confi gure the device installed on a PCI slot specifi ed by the
user as a non-transparent bridge (TB) device used to connect to another TB
device. The options are Transparent Bridge, NTB to NTB, and NTB to RP.
Hide Port?
Use this feature to hide the root port from the operating system. The options
are no and yes.
IOAT (Intel® IO Acceleration) Confi guration
Enable IOAT
Select Enable to enable Intel I/OAT (I/O Acceleration Technology) support,
which will signifi cantly reduce CPU overhead by leveraging CPU architectural
improvements and freeing the system resource for other tasks. The options are
Disable and Enable.
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)
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.
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