Ok. My PSU is 850 watts. I have 2 4 pin PCI-e connectors, but the squares and circle things don't line up. My PCI-e connector is 6 with a little 2 part coming from the cable. Should I plug in both my PCI-e connectors?
Yes, that power supply should have TWO 8pin PCI-E connectors. They're the 6+2 pin connectors you described. There should be 2! And you need to plug in BOTH of them into your GPU
That's about it! Good luck!