I am now using the 3.4 bios with nvme boot modded, the bifurcation works well. However, sometimes only 2 devices on my x16 to 4x M.2 adapter is detected, this can be solved easily by performing a power cycle.Has anyone tried bifurcation on the latest “3.4” for X9DR3-F/X9DRi-F dated 6/30/2020?