Yes, it will run fine. In fact, Netburst(P4, PentiumD)CPU's work better with the extra bandwidth from running asynchronously(RAM faster than FSB). There comes a point where having to loosen memory timings too much(for the RAM to run at the speed) can negate the benefits of running RAM faster. GLIf I get a pentium D (805) with a 533MHz FSB, will ram faster than 533MHz work right? My motherboard can handle it I just don't know if my processor will run it.