i just got all of my computer parts for my system today and the power supply worked great out of the box but now that everything is in it and plugged in it wont turn on it is a corsair cx750 and i also have an evga 500w power supply and when i plug THAT into the motherboard the fans get to full speed and then stop running and the corsair one the two top fans just twitch and nothing else happens. in the system i have a core i5 cpu, one 1tb hard drive, and one 250gb hard drive (boot drive), 4 fans (including cpu fan), and then my msi motherboard.
