m.2 PCIe adapter in Supermicro x9 motherboards?

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Well-Known Member
Apr 24, 2016
Is anyone able to get the x16 slot on an X9DRH-7F to bifurcate? I don't even get an option to switch it from x16 to x4x4x4x4 right now :(
my theory is: because the BIOS is shared over 5? X9DRH boards lacks the bifurcation of IIO 3