My ram is ddr2 800, and I'm running 8 gigs. I can only get it to 520 FSB probablyhey bro you should be able to take that higher this is what i got on mine before temps started getting to high
http://i193.photobucket.com/albums/z182/xtkxhom3r/46.jpg
i know my vcore is real high i was just testing how high i can take it