Supermicro X11DPU User Manual page 85

CPU1 Configuration

IOU0 (IIO PCIe Br1)
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.
IOU1 (IIO PCIe Br2)
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.
IOU2 (IIO 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.
MCP0 (IIO PCIe Br4)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by
the user. The options are x16 and Auto.
MCP1 (IIO PCIe Br5)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by
the user. The options are x16 and Auto.
P1_NVMe0

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 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.
85
Chapter 4: BIOS