I have a Dell Dimension 8250 which I wanted to use for video editing. I purchased a Matrox Parhelia video and discovered that Matrox recommended a 400 W power supply especially if a Matrox editing board will also be used. Problem number 1 - Dell doesn't make a 400 W power supply for the 8250. Problem number 2 - I found a Fortron F5p550-60-PLN 550 W power supply at Newegg.com which I thought would fit the Dell. Supprise (to me), the ATX plug to the motherboard doesn't fit the plug on the Dimension's motherboard. It appears that Dell uses a propritary motherboard. I searched the PCBUILD archive and now am aware of the Dell mobo problem but wonder if any company now produces a Dell compatable power supply. Does anyone know of a 400 watt or better power supply which will fit a Dell Dimension 8250? Thanks, Jim Holmes Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://freepctech.com