@ Burner27

You can try to set QPI/DRAM at 1.35v which is the maximum safe voltage according to Intel specifications and set the DRAM voltage to 1.64 or 1.66.

I have set QPI/DRAM at 1.35v in my motherboard from first day that i bought it and i don't have any problems until now. I have this system running for 5 months now.