I was reading on newegg (dont know how reliable this guy was). Anyways, he was saying his opty 165 didnt support ddr2. Now i could just be out of my league, or is this an issue with the opterons. Yeah i know i feel really Nubish asking this question. heres the post from newegg.
http://www.newegg.com/Product/Product.asp?Item=N82E16819103588
http://www.newegg.com/Product/Product.asp?Item=N82E16819103588