Supermicro B2SD2-8C-TF User Manual page 57

P2:M.2-P PCI-E 3.0 x4 (PCI Express Ports)

Link Speed
Use this feature to select the link speed for this port. The options are Auto, Gen 1
(2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
PCI-E Port Link Status
This feature shows the status of the device plugged into this slot.
PCI-E Port Link Max
This feature shows the status of the device plugged into this slot.
PCI-E Port Link Speed
This feature shows the status of the device plugged into this slot.
PCI-E Port Max Payload Size
Use this feature to select the maximum payload size for this port. 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.
*If the feature above is set to No, Relax Ordering will be available for configura-
tion:
Prioritize TPH
Select Yes to prioritize TPH requests that will allow the hints to be sent to help facilitate
and optimize the processing of certain transactions in the system memory. 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