HelooZ! I am wanting to upgrade to 4 gigs of ram (4x1gig) i currently have 2 gigs 667mhz hyperX ram, if i get 800mhz ddr2 ram can i over clock the 667 ram to 800 mhz? If i can, HOW? Also will all the memory timing and stuff have to be the same on both sets for dual channel to work properly? See sig for pc details.