I currently have a gig of RAM installed. 512 MB per stick. However, one stick is 333 MHz and the other is 400 MHz. Therefore, I need to separate them on the motherboard. I can't recall what it's called when you stick them right next to each other. I believe it's called dual or dynamic and single paging mode? I also can't recall what RPM each stick is.Anyway, would there be any appreciable performance gain by adding another tick of 400 MHz RAM, and stick it right next to the other stick of 400 MHz? I'm trying to figure out the source of my stutters and believe me, I have tried EVERYTHING.The rest of my specs...P4 3.00 GHzD865PERL Mobo1024 MB RAM80 GB 7200 RPM HDGeForce FX5700LEWindows XP ProDirect 9.0cThanks,Tim

Hi Tim, you could improve on RAM details but IMHO, it won't make much of a difference with the 2x512MB modules you have. Mixing different types sometimes 'only' leads to instability, etc. So, if that's not your prob you don't loose much performance by running them @ 333MHz instead of 400. AFAIK, the modules should be 'seperated' to enable dual-channel mode. I fear the greatest bottleneck in your system is the display adapter and this is depending on the resolution you're using. Hope this adds to thoughts, good luck and kind regards Jaap