@ Cheapseats - Nice work, some amazing memory bandwidth

@ Gullo92 - Back everything down to stock memory speeds 7-7-7-21 at 2.0v with 450 FSB and pick a multiplier to give more or less stock CPU speeds or leave it set to AUTO. You need to see if the 4870 is causing the stuttering or if it is your overclock. In my opinion 75 degrees when running Prime is too hot - I am 51 degrees in prime and only hit 71 when running Intel Burn Test which seems to be a very demaning benchmark. Your memory should run the same speeds as mine it has the same ICs I believe but without the Intel profiles. Try reading reviews of your CPU to see what O/C others get which should give you a going in point. You can then increase the FSB or multiplier until you reach a stable overclock. Remember that your GTL's may differ also so try AUTO or make a matrix of all the combinations with them varying a step at a time to see which work best.