No, coil whine from a power supply unit doesn't affect other parts like the motherboard or GPU.
No, coil whine from a power supply unit doesn't affect other parts like the motherboard or GPU.
So I recently purchased a brand new MSI Gaming X 3060Ti from microcenter, but I wasn’t satisfied. I returned it and bought a used Ventus 3x 3070 from someone I trust. After installing the GPU and turning on the PC, everything worked fine, except for a small buzz during normal tasks. When launching games like MW2, I noticed an electrical buzz that started and stopped with loading screens. I went through all the troubleshooting steps—disassembling the PC, removing the HDD, swapping GPUs—but the issue persisted when I installed another 3060. It was still present but quieter. I listened closely and detected buzzing near the motherboard’s back, resembling coil whine. Initially, I assumed it was from the GPU, but after removing the PSU, the noise became more noticeable inside the case near the fans. It seemed to emanate through the PSU, possibly due to coils close to the top rather than the backside. I ordered a new motherboard because my existing one lacked proper heat management. My PSU is a newer Corsair CX750M 80 Bronze. I’m wondering if adding more power would make it louder, but my settings didn’t show a big change. I also undervolted the card, yet the buzz remained. The Torq fans help reduce fan noise when temperatures are low, but they still produce that sound under load. It just becomes more pronounced. Should I consider replacing the PSU? I can’t discard the card now—it’s still performing well. I hope this helps and let me know your thoughts.