not a practical chip for phase change and would more than likely need a 300HTT capable board. being stuck with the 11 multiplier and if i had a board that did 300htt i'd still only get 250mhz out of my memory. But if you were to spend the 500~1000 dollars on a phase change set up you would buy a fx53 and not a 3500+. Not just for the multipliers but the extra cache.