"Cooling computers has evolved in the last ten years to the point where there are more options to satisfy all kinds of needs. All in One (AIO) water cooling kits in particular have gained popularity among users who want push frequencies higher while keeping their CPUs cooler. They're very easy to get started with as they are mostly plug and play. While things have gotten easier in the water cooling game, there are still many things that need to be taken into consideration before jumping in to ensure you can get the most performance from your own system.
Water cooling systems -- whether they are a custom loop or an AIO -- all follow the same basic principles. You have the reservoir, the pump, the radiator, the fans, some tubing, a block (for either the CPU, GPU, or both), and the water itself. Generally on different versions of AIOs or custom loops you may see some of these features as barely noticeable, for example, many AIOs have very small reservoirs that are not nearly as prominent as with other custom loops, but they are usually all there.
After years of working with water cooling kits, here are some important tips to help you get the most out of your system."
William Seibert - TechSpot.
Water Cooling Do's and Don'ts by TechSpot - Full article.