Think I made a mistake with PSU and Case fans...Help needed! Thanks!

LukeBriggs14

Honorable
Jul 27, 2013
5
0
10,510
New builder here. Build went successful. Bought some case fans to cool it down a little though. When adding fans the computer was on(hindsight says this was a bad idea). Plugged power cable into the PSU for my fan( Antec TruQuiet 120). Computer just lost power immediately and hasn't turned on since. When I try to turn it on the case fan, the fan I installed, CPU fan and the GPU fans spin for about 2 seconds.

PSU is a Corsair CX750.
MoBo is a MSI PcMate z97.
So how much of a mistake did I make and how to solve it?

Thanks!