So I just bought a used PS3 Slim and I wonder if it would be advisable to drill some holes into the bottom or even a square shaped opening and install a fan onto this part? I have a 120mm PC fan with a USB plug lying around which I initially bought for another hardware "project" that I could use. I also keep my PS3 Slim vertically, so installing it on the bottom should pose no problem. But is it advisable? I mean would it lengthen the lifespan of my PS3 or could it even harm it due to irregular heat differences created by this?