dont fear me Impacts were one of the ebst OC guards ever, special for DRAM OC....Maybe only for Kaby Lake, because the performance clock to clock is the same (something as refresh of Skylake with better electrical properties and for better OC). Im thinking for Z270 we will not see Maximus IX Extreme also (Haswell had M6E and after Haswell refresh was still only M6E as one extreme board for LGA1150)