if your just going to do high end video rendering on the machines. your better off buying a server mb and dropping the money for two cpu. if i was building a render pc i would not use a desktop cpu and gaming mb. I would use a tyan or super micro mb and stock 1600/1300 ram. and a workstation cpu. i would also switch out the water system for a large metal block heat sink. the new intel workstation cpu run real cold at stock voltages. under full load a good metal heat sink will keep any of the newer intel cpu cold. also drop the power supply down to 750w. the fire gl take 225w. if not i would swap out that no name brand 100w unit for a sesonic or a rebranded one. if i was making a workstation i be looking at gold or platinum rated power supplys.