I purchased an Intel 3.2E P4 800MHz 1MB L2 CAC CPU for my P4B board as an upgrade based on an article in PC World, but despite my DIP switch adjustments to max the board's capacity it will not work. I suspect the 800 MHz bus speed is the trouble. In any case, I'm looking for a newer board to match the new CPU. Articles on the net date back a few years, so I'm looking for advise on the best currently available board that will run the newer chip. I recently upgraded the graphics board as well (works fine) to an AGP type. I'd like to keep that component. I'm aware that new DDR memory will have to be purchased. I'm not looking for a screamer, just faster than my 1.8 MHz box. Any ideas? Thanks!