Of course, the standard way of controlling CPU fans these days is with PWM, so he built a circuit which essentially converts the PWM signal from the motherboard into a phantom thermistor.

This guide reviews high-quality cooling fans designed to keep your PC performing at its best. These options combine ...

He controls the speed of the fan with PWM from the Arduino fed through a MOSFET. The Arduino reads from each sensor and determines which one is hottest. [Brian] wanted the fan to run at all times ...

Additionally, Noctua has released the NA-SC1 Sx2 splitter cable set, which includes two 3-way PWM splitter cables. These cables allow users to connect and control multiple fans from a single ...