Supermicro X11DPX-T User Manual page 89

CPU2 Configuration

IOU0 (IIO PCIe Br1)
This feature configures the PCIe port Bifurcation setting for a PCIe port specified by
the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (IIO PCIe Br2)
This feature configures the PCIe port Bifurcation setting for a PCIe port specified by
the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU2 (IIO PCIe Br3)
This feature configures the PCIe port Bifurcation setting for a PCIe port specified by
the user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
CPU2 SLOT6 PCI-E 3.0 x16

Link Speed
Use this feature to select the link speed for the PCIe 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
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 PCIe device to enhance system performance. The options are 128B, 256B,
and Auto.
CPU2 SLOT8 PCI-E 3.0 x16

Link Speed
Use this feature to select the link speed for the PCIe port. The options are Auto,
Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
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Chapter 4: UEFI BIOS