Supermicro X11SPG-TF User Manual page 83

IOU2 (II0 PCIe Br3)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
CPU1 SLOT4 PCI-E 3.0 X16

Link Speed
Use this item to select the link speed for the PCI-E port specified by the user. The
options are Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
The following information will also be displayed:
•
PCI-E Port Link Status
•
PCI-E Port Link Max
•
PCI-E Port Link Speed
PCI-E Port Max Payload Size
Selecting Auto for this feature will enable the motherboard to automatically detect
the maximum Transaction Layer Packet (TLP) size for the connected PCI-E device,
allowing for maximum I/O efficiency. Selecting 128B or 256B will designate maximum
packet size of 128 or 256. The options are 128B, 256B, and Auto.
IOAT Configuration

Disable TPH
Transparent Huge Pages (TPH) is a Linux memory management system that enables
communication in larger blocks (pages). Enabling this feature will increase perfor-
mance. The options are No and Yes.
Prioritize TPH
Use this feature to enable Prioritize TPH support. The options are Enable and Disable.
Relaxed Ordering
Select Enable to enable Relaxed Ordering support, which will allow certain transac-
tions 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.
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Chapter 4: BIOS