Hey everyone! I recently bought an Asrock Challenger RX 9070 XT after a friend convinced me it was a good deal. I've done some tweaking on my GPU, undervolting it and overclocking the VRAM. Currently, I'm using a Gigabyte 650W ATX 3.1 PSU. AMD recommends a 750W PSU, but my friend says his setup runs fine on 650W. I'm wondering if my system is genuinely fine or if I should upgrade to a 750W. What are the potential issues I might face if I stick with my current PSU?
2 Answers
Have you checked what your CPU is drawing? That's a crucial part of your total power needs. It’s important to ensure your CPU and GPU combined aren't pushing your PSU close to its limit.
You really should consider upgrading to a 750W PSU for safety. If your GPU doesn't get enough power during heavy loads—like gaming—it can result in crashes, performance drops, or graphical glitches. It's better to have adequate power to avoid these issues down the line.

My CPU is a 5700X3D and it barely hits 100W. Even under stress tests, I haven't seen it go over that.