I want some suggestions for keeping a mac mini from overheating. All macs have a basic design problem in that the external case is too small to allow proper cooling of the cpu and graphics chips. In the old days Apple put huge heat sinks on the chips which allowed them to keep cool under continual heavy use. Because the chips in the new machines are inadequately cooled, they "throttle back" when they get hot, which is a way of saying your quad-core i7 chip is not capable of running at full speed and heavy load continuously. What kind of external fans and other third-party cooling options allow a mac mini to run at 100% (400%) for a long time?