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PCIe bifurcation to split an x16 or x8 slot into multiple x4 channels: allows PCIe adapters with multiple NVMe cars

Posted by jpluimers on 2022/03/07

It looks like some X9 and X10 Supermicro boards already support PCIe bifurcation (splitting of PCIe slots into multiple channels), which might be worth a try to upgrade some of my older rigs to use NVMe instead of SATA storage as it will allow me to use adapters that support multiple NVMe devices into a single PCIe slot.

The X9 motherboards uses an LGA 2011-R socket, and the X10 motherboards an LGA 2011-R3 sockets.

Both use chipsets not being that different: the X9 uses the C600 series (which are similar to the X79 consumer series), and the X10 uses the C610 series (which are similar to the X99 consumer series).

This is what I found out about the bifurcation support for my boards:



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