I recently got an Asus Prime 5070 Ti graphics card that came with a connector. My PSU has three 8-pin slots on the PSU side and one 12-pin slot for the GPU. Do I need to connect all three 8-pin slots using separate wires from the PSU? My PSU model is MWE Gold 750 - V2 (Full Modular) by Cooler Master.
3 Answers
Just a heads-up, the 5070 Ti can draw up to 450W, so if your PSU offers 300W per 8-pin, you might be okay with a single separate cable and then daisy chaining the others to meet the power requirements.
Yes, you should connect all three 8-pin slots using separate PCIe cables from your PSU to the adapter of the GPU. It's crucial for ensuring the card gets enough power.
Actually, it’s not necessary to use three separate cables. You can use two cables where one has two 6+2 connectors. That should suffice for your setup without any issues.

My PSU only came with two PCIe cables, but there are three slots. Can I add a third cable from a different PSU? Just wondering if that's safe.