Laptop heatup and auto-shutdown. Any perm damage?

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http://askubuntu.com – So I've been using Ubuntu for a week now and I've noticed that my laptop heats up like crazy compared to windows and it auto-shuts down. Now I know that if I go to the terminal and use the command "sensors" it will show me the temperature. During basic browsing (like now), the temperature is about 50-60 C, but that's after I updated my Dell's BIOS, downloaded Jupiter, Powertop, laptop_mode_tools, lm-sensors, all the dell kernel modules, and enabled Intel i916 RC6. Before all that, the temperature was around 70-84 C. Yes, I know that's pretty impressive but when I ever open a vid/file it goes u (HowTos)