Chapter 4: BIOS
IOU1 (II0 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 (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.
MCP0 (II0 PCIe Br4)
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.
MCP1 (II0 PCIe Br5)
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 PcieBr0D00F0 - Port 1A/ PcieBr1D02F0 - Port 1C/ PcieBr2D00F0 - Port
2A/ PcieBr3D02F0 - Port 2C
Link Speed
Use this item to select the link speed for the PCI-E port specified by the user. The op-
tions are Auto, Gen 1 (2.5 GT/s), Gen 2 (5 GT/s), and Gen 3 (8 GT/s).
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. Options are Auto, 128, and 256. Auto is enabled by default.
CPU2 Configuration
IOU0 (II0 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 (II0 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.
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