a little update. I opened up my case up to get more cool air into it. I was able finish the first test in 05 at 800 on the mems, but halfway into the second test I got artifacts. Still at stock voltage. I think I have some super 1.4ns ram here, lol. I guess the only reason I get artifacts when I do it due to the heat build up. Since if there wasnt enough voltage it wouldnt make it so far into the test...thats just my exp with CPU's, does the same apply to GPU'S?