Hello,
sorry to resurrect this old thread, but I have a question for anyone who got 16x to 8x8x working with two GPUs on the x399 Taichi:
What bifurcation card / solution are you using?
I tried these two (from AliExpress), with no luck so far:
Eanootal MCIO 5.0 to PCIe 5.0 X16 Expansion Kit...