Also was looking at your guide for 4.2ghz overclock, and was wondering what QPI/VTT voltage you get at 4.2ghz BCLK 200 ram mulit at 10x so its 2000mhz at moment seems my QPIVTT voltage is close to 1.5v would you say that is well unsafe and better to just lower ram speeds to 1600 and see what qpi/vtt i get from that?