Hello everybody. This seems like an excellent board, and I thank you for all your help. I have an Acer Aspire 1681LCi with 512MB PC2700 (2x256) 200pin Sodimms. The CPU is the Centrino Pentium M 1.5Ghz supposedly with 400MHz FSB (4x100). I would like to add more RAM to it, but have three questions: 1. Should I just add more DDR333 or replace it all with DDR400? 2. Should there be a performance benefit to this? 3. Why would Acer install DDR333 into a 400MHz FSB? Any suggestions would be helpful on this matter. Thanks!