Hi, I have built a hackintosh mac pro 3.1 on dell T5400 and working good. Now I wan to build a real mac with mac parts. As titled, will there be any switch to make the single cpu working on dual cpu board, OR no way, that I need to put two? Or it's even simpler just boot the machine with one cpu left on board. Since putting 1 cpu save lots money for me. Can any one share with me on this? Thanks.