Currently running G.Skill Trident Z RGB 2x8GB 3600MHz CL16 at 4000MHz 18-18-18-40 1.35V, VCCIO 1.15V, VCCSA 1.2V without problems. It needs some more testing, but seems to be stable.
Do you have any offset for AVX?I think I also have a good sample 5GHz AVX on 1.27V max temps at Prime95 (with AVX) SmallFFT 85C. Other programms (OCCT, Asus Realbench, IBT) with AVX enabled passes tests with 1.25V, only Prime95 cause BSOD after about...