New Power supply and Graphics card PC turns on then off instantly.

LiamG

Honorable
Dec 8, 2013
3
0
10,510
My computer turns on then off instantly after I installed I new graphics card and Power supply I need help. I believe everything is plugged in correctly, after taking out the graphics card the PC still won't start the power supply is a 750 Watt smart Thermal take, It should be more then enough to run my system, and the card is a GTX 780. I am new to putting together PC's so it's possible I missed a plug please suggest a possible plug I missed and what the issue could be thanks.
 

LiamG

Honorable
Dec 8, 2013
3
0
10,510


The big one and the 4 pin one are both plugged in and the Graphics card I believe was seated properly and both plugs were plugged in since it was powering up.