My DP 965 has been sitting in its box for almost a month now. Hoping to avoid the problems I've read about I opted to get some DDR2 800 dimms that are rated at 1.8V. The problem is those two 1 gig sticks cost twice what the motherboard cost! I have 2 gig of DDR2 667 running in my D945 board now - will my E6600 coming next week take a big performance hit if I don't have DDR2 800 dimms?