Fan keeps stopping then going

Cioby

Distinguished
Unless it's overheating or they are old, it's probably not an issue, check your fan settings in the BIOS. See if they are set maybe to 0 when the temperature is at it's lowest threshold.

Either that or check the cables are well fitted in the mulex/fan plug. Should be easy to do even if you're not an expert, just unplug your PC first.