If you put PC2700 ram in a board that only supports PC2100 you will get the amazing result of it running at PC2100 speed, (266mhz FSB). That’s exactly what I have running, Athlon XP, 266FSB and 512 of 2700 RAM. Its like the days of PC66/100/133 etc, they all worked at lower speeds. Ie 100 would run ...