CatIII speaks well.
I used Speedfan with my erstwhile laptop, and it did solve the overheating problem. The fan ran all the time, and speeded up when it needed to.
That laptop's screen died a year or so ago (not related to heat). I've not bothered to replace it since the iPad does most of what it used to do. The desktop machine in the study "just works" - and very well, despite what the Indian Microsoft Windows phone calls try to tell me.