ASRock > X79 Extreme11 There are also 8x Gen2 lanes from the PCH, not sure how these are used either. But if it only get 4x lanes then you will bottle neck as above. There is a Datasheet on the Extreme11 board layout somewhere which has it drawn, can no longer find it. To help diagnose run a single drive test first, this is your base speed. Keep adding a drive and do more tests. At a certain point you[…]