Watercooling is a water cooling system. Coming from heavy industry, it has been transposed to IT to provide a silent and efficient solution to dissipate the heat emitted by the components.
Whether installed in a portable or fixed PC, integrated circuits such as the processor (CPU) and graphics card (GPU) convert some of the energy they consume into heat. It is therefore necessary to cool these elements to ensure their stability and extend their service life. As a general rule, fans are added for the purpose of circulating a flow of air in the case, in a process called aircooling, or air cooling in French. It is a simple solution to implement and cheap, but sometimes noisy and inefficient.
The benefits of watercooling: silence, efficiency and aesthetics
To build ever more compact and efficient computer stations, it is necessary to increase the density of the components. This implies a possible reduction in airflow and shows the limits of this type of cooling. Watercooling, on the other hand, allows a flow of liquid with a high insulating power to be directed directly to the processor, RAM or graphics card, which are the components most prone to an increase in their operating temperature.
Although more efficient and quiet than an air-cooled system, watercooling is mainly operated by video game fans with a powerful configuration and who want to have a computer with a modern aesthetic, or by people who overclock. To cool a computer using watercooling, it is necessary to install a water pump, waterblocks, radiators and watertight piping inside the case. Some thermal fluids are deliberately coloured to enhance the cooling system.