The same advice that goes for cleaning vents applies to the inside of your computer too. I know opening a computer case is a pain—but if you don’t clear out the dust that accumulates under the computer processor and optional graphics card processor fans, these two vital components will eventually over heat.
To clean inside your computer, turn off the computer and unplug its power cord, then open its computer case and use the compressed air to blow away any dust. Make sure you cover your eyes, and try not to inhale until the dust settles. If you’re really serious, use swimming goggles and a face mask.