Uh... What good is a temperature read-out without knowing the operating conditions? Are you running benchmarks? Is the machine idling? Transcoding 4K video?
To adapt a phrase, it ain't the heat, it's the function. These are tools, designed to do work. If you work them hard, they get warm, the fans kick in... and if they get too hot, the OS shuts the machine down before it melts. There is no anti-freeze to evaporate, the engine block will not crack. If the longevity of your equipment is more important than the work you do upon it... send it to a museum, now.