The Dell & HP mobo's share std. BTX mounting hole dimensions. My Dell desktop case (board is 10.5"x12.8") is big enuff for the HP board. ATX psu cabling is standardized (for the most part)...are BTX psu connectors std? I can modify the on/off switch/pigtail & socket. In other words, can someone specifically say I will need the PSU from an HP? Or...are any of "you all" aware of an Intel/Dell board with SATA3, 6.0Gb/s? The HP 8200 Elite USDT (ultra small desktop) uses an external psu. That sounds ideal. Any idea how to connect a case fan w/o installing the 8200 usdt psu? Thanks, dinosoar.