This is a bit of a DIY project. I'm going to show you how to keep a computer in a desk or cabinet, but we're going to install an external fan in the cabinet to keep the computer from overheating. (And we can do it for $15 - $25, depending on your setup).
If you've ever tried to keep a computer (or PS3, PS4, Xbox, etc) in a cabinet or other enclosed space, you know they can get pretty hot. And that can eventually kill your computer.
First things first: Download a program call SpeedFan. This program reads temperature sensors on your computer and tells you what they are. It's the only way we're going to be able to tell if your computer is getting too hot.