I run my 512mb sticks in dual channel, 400mhz, 200FSB, 2-2-2-5 at 2.6V on my new NF7-S. Thats what I run everyday, but I bump it up to 215 or so for benchmarking keeping the timings the same, and I don't think it's the memory holding back my oc. Yes, I still have to update my sig.