For those of you running 4 sticks of RAM, how much vMCH are you running and did you have to up your RAM voltage quite a bit? I just went from 2 to 4 sticks of 1gb Corsair XMS2 DDR800 and I had to up it from 1.92v to 2.12v to get it stable in memtest86+. The test froze half way through so it's still not 100% stable...