If you’ve ever been curious about liquid CPU cooling, but didn’t want to deal with the expense, installation, and maintenance of a DIY setup (as well as the possibility of leaks), an all-in-one (AIO) unit provides much of the same benefits as “open-loop” cooling, but without any of the messy set up. They come pre-sealed and the pump is integrated into the cold plate typically, so you just install the radiator in your PC case, bolt the water block onto your processor and you’re good to go.
It’s not much different than installing an air cooler, and it provides better cooling and less noise (usually). If you’re ready to take the plunge, these are five of the best liquid-coolers for your Gaming PC.
Source: IGN.com Best Liquid CPU Coolers 2019: Silent and Reliable AIO Liquid Coolers