I have a pre built PC and I upgraded my GPU do the one previously mentioned. I want to make a complete upgrade, so basically building a new PC, and the power supply I want to use is the Redragon RGPS-850W 80+ Gold 850 Watt ATX 3.0 & PCIe 5.0 Fully Modular Power Supply. On the images, it say that it has a port for a 12VHPWR cable, which when I looked into it, it was for the GPU. I was wandering if I could use one with my current graphics card, or if I would have to stick with 2x8 pin connecters? Any answers and suggestions would be greatly appreciated.