[QUOTE=saaya;2892472]hmmmm on the 790 or also on another board?
did you chek with ocz if there is a new spd maybe or some recommended memory settings etc?

So at stock it doesnt work, but oced it does?
Well maybe it degraded and now requires more volts to work stable?
That sounds more like ddr degrading though, i never heard of this from ddr3 so far. Are you 100% sure it was stable at stock speed on this board to begin with?

Correct, at the time this happened I also lost vista 64 as posted to the other thread. It ran before for hours at stock & will not no matter what I try.
100% stable on overclock for now anyways at 7-6-5-18 @ 1T 2.06 VDimm real.
1800MHz 1:2 noproblem, but not stock 1600MHz 7-7-7-18 @ 2T

P.S. this is not ocz, it's viper patriot PVS32G1600LLK