See, I am a bad person, and probably going to illustrate again just how bad I am. When I had an overheating problem, I just took the covers off the case with a screwdriver, and my computer went 'bare' for a good five years. I made sure the dust and cat-hair was carefully cleaned out-- which was easy enough to do.

My video card finally went bust last September, and the only reason I have covers on my computer case is... I have a new computer.