wrong connection

Hi Guys, all 3- 5 years i upgrade my pc myself. i just bought asus x670 p Wifi with 7800x3d to ugrade my old intel. It was late and i was stressed. i Found an "extra" 4 pin ( atx-12v-2) next to the normal one and connected a pci cable. Yes it fit perfect... -.- After starting zero fans were...

Hi guys. I'm almost done building my rig. Here are the specs: Intel core i7 4790k 8 gb (2x4) crucial ballistix elite 1866 mhz Asus sabertooth z97 mark 1 cooler master N600 Thermaltake smart se 730w That's it. By the way, I still don't have a graphic card, can you guys recommend me a good gpu...