After OC 860 microtears on screen and ddr1333=>2000

[thenewrick]

Hi. I've got the new gigabyte ud3 board, an 860 core i7, and 4 gigs of ddr2000 gkill ram. I overclocked and then went back to normal settings and now i get mini-micro tears on my screen. I see them horizontally, and last only a fraction of a second. They seem to show up more during cpu heavy moments, so I assume overclocking did it. Any tips or info on this issue, has me baffled. Also I have ddr2000 ram and my board only shows it as 1333. Can I put it up to 2000 speeds without disabling turbo boost or should i let it OC itself?