I just installed my thermistor fan – why isn it spinning?
First, check to make sure a full 12v is being supplied to the fan. Many motherboards have a fan throttling feature on the 3-pin fan connector to lower the fan speed when the system is not under full load, this provides a voltage less than 12v which is outside the operating voltage of the thermistor and defeats the purpose of having a thermistor fan in the first place. If there is no way to disable the motherboard’s fan throttling feature, plug the fan into the power supply directly with the included 3-4 pin converter cable to ensure it is getting the full 12v. The fan’s thermistor serves to control the fan speed so be sure it is not connected to a fan controller. The first few days or weeks, the fan’s thermistor needs to heat up sufficiently to speed up and break-in the bearings properly. The thermistor sensor must get sufficiently warm enough to spin during this process, we only recommend placing the thermistor along the base of the CPU or GPU heatsink as the thermistors need at least