What is the best way to overclock the memory on a gf2mx? I am trying to use ram heatsinks but i am not sure how to attach them, i don't want to buy arctic silver epoxy offline and i cam not sure if any local hardware stores (like sears) sell epoxies that transfer heat. An clues?...how can i get the ram above my "limit"?...same goes for engine clock, but i have a blue orb on it