Bifurcation on PCIe 3.0 x16 Intel® NUC 9 Extreme/Pro Kits

Documentation

Product Information & Documentation

000057440

08/31/2020

PCIe bifurcation settings:

When a single PCIe 3.0 x16 add-in card is used in the PCIe 3.0 x16 slot, it can access the full PCIe 3.0 x16 bandwidth. When the M.2 slot, the PCIe x4 slot, or both are used, they get access to x4 lines. Additionally, the x16 slot is reduced to x8 when used in this way.

PCIe 3.0 x16 Bifurcation is supported to a maximum of three PCI Express devices (x8 + 2 x 4).

The table below describes available slots on the Baseboard of Intel NUC 9 Extreme/Pro Kit.

# Connector Type Description
1 PCIe 3.0 x16 Slot The NUC Extreme/Pro Compute Element input connector (black)
2 PCIe 3.0 x4 M.2 Slot M.2 slot that is configured for NVMe only (covered by heatsink)
3 PCIe 3.0 x16 Slot PCIe 3.0 x16 standard compliant slot (blue)
4 PCIe 3.0 x4 Slot PCIe 3.0 x4 standard compliant slot (black)

Connectors

Examples of all the PCIe devices configurations and availeble PCIe 3.0 lines:

Availeble PCIe 3.0 lines

Related topic
Technical Product Specifications for Intel® NUC Products