Hey everyone! I'm a bit of a newbie when it comes to upgrading GPUs, so I hope I can explain my situation clearly. I've just bought a 5070 to replace my 3070. Currently, my 3070 is powered by an 8-pin PCIe cable that splits into two 8-pin connectors (or 6+2, I think). Now, my new 5070 came with an adapter that takes two 8-pin cables and combines them into one 8-pin connector to plug into the GPU.
I saw a recommendation suggesting that I shouldn't use the same cable setup as before, and I should actually use two separate cables for the adapter. Is that true? If so, do I need to get two 8-pin cables for this? I'd really appreciate any guidance!
2 Answers
Yes, you should definitely use two separate PCIe cables into the adapter for the 5070. That way, you ensure proper power delivery to the GPU. The cable you were using with the 3070 is okay for one of the ports on the adapter, but it's not the best option for optimal performance. If you can, order two separate cables. It's worth it in the long run!
Yes, if it’s designed for PCIe, you’re in good shape!
If you don’t have the new cables handy, you can temporarily use the old PCIe cable to fill both ports on the adapter. It’s not the best scenario, but it can work in a pinch. Just remember to switch to two separate cables later on for better safety and performance!
Got it, I’ll try that if I have to! Also, does it matter which PSU slots I plug into? I have a Corsair RM750X.
It should be fine, just make sure the cables are going into the right ports. Your PSU likely has specific slots for PCIe; just ensure you use those instead of Sata or peripheral slots.
Thanks for the clarification! I found a cable that comes with two, so that should work perfectly, right?