Supermicro X13DEG-PVC User Manual page 111

IOU3 (IIO PCIe Port 4)
This feature is CPU-dependent. Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are Auto, x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16.
IOU4 (IIO PCIe Port 5)
This feature is CPU-dependent. Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are Auto, x4x4x4x4, x4x4x8, x8x4x4, x8x8, and x16.
Socket0 Port DMI

Note: The number of slots and the slot naming vary based on your motherboard fea-
tures.
Link Speed
Use this feature to select the link speed for the PCIe port specified by the user. The options are Auto, Gen 1 (2.5 GT/s),
Gen 2 (5 GT/s), Gen 3 (8 GT/s), and Gen 4 (16 GT/s).
The following information is displayed:
•
PCIe Port Link Status
•
PCIe Port Link Max
•
PCIe Port Link Speed
Data Link Feature Exchange
Use this feature to enable/disable the PCIe port to enter PCIe 4.0 DL_Feature negotiation state. The options are Disable
and Enable.
DMI Port MPSS
Use this feature to set the maximum payload size supported in Direct Media Interface (DMI) device capabilities register
for the device installed in the PCIe port. The options are 128B, 256B, and Auto.
Equalization Bypass To Highest Rate
When this feature is set to Enable, the Equalization Bypass will be supported at the highest rate. The options are Disable
and Enable.
IOAT Configuration

Relaxed Ordering
Select Yes to allow certain transactions to be processed and completed before other transactions that have already been
enqueued. The options are No and Yes.
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Chapter 4: UEFI BIOS