Does any body know what I need to do to upgrade a HP Pavilion 6465, 433mhz celeron to a 750mhz Pentium III? Has anyone done it?? the case is a fairly large tower. Does any motherboard fit? or Are they like Packardhells and only their oem motherboards fit? Your experiences would be greatly appreciated, Gregg The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com