Hey everyone! I recently got my hands on a shiny new RTX 5070 Ti, but I'm puzzled about how to connect it to my old Corsair RM850 power supply. From what I understand, my PSU only has one 6+2 PCI-E to Type-3 cable. I've read that the RTX 5070 Ti needs either three PCI-E to Type-3 cables or a 12vhpwr cable, which is unfamiliar to me. The card did come with an adapter that converts three PCI-E to 12vhpwr. What's the best way to make this connection? Should I be looking for additional cables that fit the 6+2 slot, or is it time to invest in a new power supply with more PCI-E slots? Any insights would be greatly appreciated!
2 Answers
Do you still have the original 6+2 PCIe cables from your power supply? You’ll need them to connect properly!
Honestly, I'd recommend just getting a new power supply that’s ATX 3.0 or 3.1 ready. It’s much safer in the long run. Sure, you could technically use that 3x8pin adapter, but a new PSU is a better investment.

Yeah, I’ve got the cables, it’s just that the PSU lacks the necessary slots, as you can see in the pic.