I have a DFI Ultra Infinity board running at 243fsb at 2.9 or 3.0v. I had it at 250fsb but my Corsair 3500 (BH6 Chips) needs 3.3v and looser timings to get that. I ran benchmarks and it does better at 243fsb with tighter timings. Anyway I have stick of 512mb and would like to add another stick of 512mb. In the very near future I am going to get a DFI SLI board and a Athlon64 cpu so I really want ram that would be compatable with that board. I assume the ram that I currently have is compabable with it but I am not sure. What ram module should I get? Thanks!!!