Thanx Punisher.

Tried up to 1.65v and 2200mhz cl10. Doesnt really like anything above 100bclk and 2133.
Maybe its just me and my P67 deluxe, but looks like the sweetspot is 2133 9-10-10-1T and 1.55v
Stability test running just now. 1.55v seems to be enought for this.