I already have a Corsair TX850M 850W 80+ Gold power supply and want to pair it with a Gigabyte Radeon RX 9070 XT. The card appears to use three 8-pin PCIe power connectors. Is 850W enough, and does this PSU provide the right number of connections and cables?
1 Answer
Yes, 850W should be sufficient for an RX 9070 XT, assuming the rest of the system is reasonably typical. Use the original PCIe cables that came with the TX850M. The modular plugs go into the PSU sockets labeled PCIe, not the CPU/EPS sockets, and the 6+2 ends connect to the graphics card. Check how many separate PCIe cables your specific cable set includes; ideally, use separate cables for the card’s power connectors rather than relying on one cable’s daisy-chained plugs.
Correct. Match the cable label and PSU socket, and don’t substitute an EPS/CPU cable. If the card truly requires three 8-pin connections, make sure you have three compatible PCIe plugs available from the original PSU cables.

That was the part I wasn’t sure about—the cables plug into the modular sockets labeled PCIe on the PSU, correct?