After being told that the ( PAT ) on motherboards will disable above 217fsb 1:1 ratio I investigated and its true. At 218fsb it turns off and is disabled... I verified this with cpuid. Now I was curious as to what performance gains or loss this would incur. My first test was setting mb to 5:4 ratio at 3.2ghz and ran 3dmark2003 got a score of 6991. I then changed to 217fsb with a 2.4c running at 2.6ghz 1:1 ratio and got a score of 6988. wow lol ! anyways thought you guys would be interested and might want to try this on your machines also.