Fan running almost constantly Quite recently, my late 2012 Mac Mini went from being virtually silent, to having the fan on quite hard nearly all the time, regardless what I'm doing. If I use some 3D rendering or similar then it understandably gets flat out, but if I am doing nothing at all the fan is still a constant whir. I am not using different applications to the past... basically browser and Parallels, but in my Parallels session all I run is RDP.



Chrome and related processes seem very high CPU% but I don't know if that's normal. 

I'm slightly worried my CPU being flat-out risks damage and also that electrical use is high. What can I do to identify and address this issue?
I suspect that, for some reason, your system isn’t able to properly cool itself. I recommend trying to reapply thermal paste or bringing your Mac to an Apple Store so they can do it for you.