Hi, I don't suppose you tested what happens if you put an M.2 drive in the second slot (bottom left) did you? As tghe manual is a bit ambiguous. It says if you have a GPU in the second PCI-E slot then the top slot drops to x8, and it says if you also have an M.2 drive in M.2_2 then the top PCI-E slot will be x8 and the second slot x4, but it doesn't say what the top PCI-E slot will run at if there's no GPU in the second PCI-E slot and an M.2 in M.2_2, does it still drop to x8?
Basically can you use all three M.2 slots without sacrificing GPU bandwidth.