All electronic components create heat. For some applications that might be a good thing, such as keeping a beverage hot, but in general heat plus your computer equals a very bad combination. Unfortunately for decades now the common method for keeping your computer's CPU cool has been to hook up a large, occasionally noise fan to dissipate the heat created by the components and move it outside the case. Liquid cooling systems change all that. By replacing your computer's CPU fan with a liquid cooling unit such as the Freezone Elite CPU Cooler from CoolIT Systems you can not only remove the ambient noise of the old fan but you may also be able to give your computer a speed boost. Many computer gurus overclock their systems to give them additional performance above and beyond what their CPU is rated for. This is only possible if you have a really good cooling unit, otherwise the additional heat created by overclocking can actually fry the CPU leaving you with a very expensive lesson learned. If you are comfortable working inside your computer's case, or if you are considering upgrading your CPU, converting to a liquid cooled system may be a good idea. Liquid CPU cooling systems such as the Freezone are useful, stylish, and interesting conversation pieces when your techie friends drop by to play World of Warcraft on the weekend. If nothing else, the futuristic black box and coolant hoses look pretty "cool," in a glass sided computer case.