Fan Curve Simulator
Tune a temperature-to-speed curve and see how loud your fans get at any load point.
Map a temperature point to a fan speed on a linear curve and estimate the resulting noise. Tune idle/load points for silent vs performance.
Result
Tuning a fan curve without guessing
Scenario: you want quieter idle without cooking your components under load. A linear fan curve interpolates between an idle point and a load point so you can predict RPM — and noise — at any temperature.
Example: idle 35°C at 800 RPM, load 75°C at 1800 RPM. At a target 70°C the curve lands near 1700 RPM, about 41 dBA — performance-leaning. Drop idle to 600 RPM and you shave noise at low temperatures while staying cool at load.
Boundaries: this is linear interpolation only. Real BIOS curves are stepped with hysteresis, and noise rises non-linearly near max RPM. It will not account for fan resonance, case pressure, or dust buildup over time.
FAQ: is higher RPM always noisier? Mostly, but small fans at low RPM can whine while larger fans move more air per RPM and stay quieter. Aim a few hundred RPM below max for the silence sweet spot.