I'm interested in building a new computer, and in my search for all the right parts I noticed that if you get a socket 940 FX-53, that you have to have registered RAM. But then I noticed they just came out with socket 939 mobos and processors and that there is nothing that says they need registered RAM. So am I better off going with the socket 939 FX-53 and using regular RAM as opposed to having very few RAM options with the 940 since it needs registered RAM? Thanks.