My Vastarmor RX 9060 XT is making a high-pitched resonance noise during low-load scenes in Banishers: Ghosts of New Eden. Fix the fan curve?

During the quiet moments of exploring the wilderness, my case started emitting this piercing, drill-like high-frequency noise that made it impossible to focus. The fans on the Vastarmor Radeon RX 9060 XT 16GB OC were running at 1600RPM by default, creating a 110-140Hz resonance with the metal backplate at low loads. I tried dropping the fan speed to 50%, but the core temp spiked to 81℃ instantly, which worried me. I ended up building a dynamic fan curve: 60% speed for 45-65℃, and a linear ramp to 100% above 65℃. With a decibel meter, I saw the idle noise drop from 40dB to 30dB, while keeping max temps between 72-77℃. At first, the fans were switching speeds too fast, creating a weird pulsing sound, until I set the smoothing time to 4 seconds. VRAM temps stayed stable at 62-68℃. Checking the hardware monitor confirmed a linear relationship between speed and temp, with fans settling at 1200-1400RPM.