Thx slim142:

I'v been trough most vtt from 1.1 to 1.35 with gtlvrefs from 0 to -0.40. And then different values for ref 0 and ref 1. Best so far is -0.1 and -0.5 with vtt at 1.35

Using the mem at 1.95 for 24/7

Tried 8-8-8-25-2T and the freezing in cod4 wasn't changed.

And 3DMark vantage has been on loop for quite some time now, no problems at stock resolution. Is there a way to increase pcie stability?