I have a Phenom II X2 550BE at 3.7GHz completely stable with a Gigbayte785GM US2H Mobo. I really want to get it to 4.0GHz and there is not 1 voltage setting or ANYTHING else that I HAVNT tried to get it o 4.0GHz. Ive tried just about all different combos whteher its increasing fsb alone, or fsb with multie plier you name it ive tried it all, well today ive never really thought about it but I remembered that my RAM is pretty old, I have 4GB of Kingston 667 ddr2 ram. What if I upgrade to ddr2 1066 or even ddr2 800 ? Will I be able to clock higher ? does ram even help overclocking ? Ive just never bothered upgrading my ram because I knew it wouldnt increase gaming performance and thats all I really do. So will upgrading boost me up to 4.0Ghz ?