Supermicro X11DSC+ User Manual page 95

PCI-E Port Link Status
PCI-E Port Link Max
PCI-E Port Link Speed
PCI-E Port Clocking
The options are Distinct and Common. If this item is set to Distinct, this component
and the component at the opposite end of the Link are operating with separate refer-
ence clock sources. If this item is set to Common, this component and the component
at the opposite end of the Link are operating with a common clock source.
PCI-E Port Max Payload Size
Select Auto for the system BIOS to automatically set the maximum payload value
for a PCI-E device to enhance system performance. The options are 128B, 256B,
and Auto.
(Intel® IO Acceleration)
 IOAT
Disable TPH
Select Yes to deactivate TLP Processing Hint support. The options are No and Yes.
Prioritize TPH
Use this feature to enable the prioritize TPH support. The options are Enable and
Disable.
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. The options are Disable and
Enable.
 Intel® VT for Directed 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.
Configuration
95
Chapter 4: BIOS