well i just found a few posts where users boards worked out of the box w/ 45nm procs, i guess im going to have to see if I can figure out what mine is, and if its 45nm core 2 duos that worked or quads, Im doing the build with video editing in mind so id prefer to go with the p450 bc of its sse4... but anyways till would like hear if anyone has the board with a 45nm quad...