I got the version 2 board. I have been using cod4 as a stability test, and it freez in max 10 min regardless of gtrlf or vtt. So I continued to other tests. OCCT at least 20 min stable, stopped it myself
3DM06 gfx tests 20 min stable, stopped it myself
memtest86, 20 min stable, stopped it myself

The only way I can freez this board is CoD4, or hours of occt/orthos might do it, but as long as cod4 freez I know there is a problem. I am gonna try some OC now.

My 1600 Kingston memory does 2000 at 8-8-8-20-1T and 2.1v, but performance is best at 1600 7-6-6-12-1T