Water-cooling is perfect for those looking to achieve the lowest temperatures and noise levels with overclocked components. Water-cooling loops involve combinations of water blocks, tubing, fittings, radiators, pumps, reservoirs and coolant, and since many of these come in a wide range of colours, it can also be used to create some seriously attractive and jealousy-inducing PCs and case mods. CPUs, GPUs, motherboards and even memory sticks can be water-cooled, but please be aware that the use of this equipment may void the warranty of your system or components.