And how dusty is your office?

You use a Dell Vostro? Sigh.

Anyways, try cleaning it. If that doesn't work, buy a non-dell computer.

Most CPU's will run fine if under 55-60C or so, and an ambient case temp of 40-45C or less. Most store bought PC's are fine-tuned to run real hot inside for the sake of being quiet. They throttle their fans to run right on the "Edge". That is why self-built are better, you can crank the fans up and keep everything running cooler.

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