How Does A Liquid CPU Cooler Work? The Easy Guide For 2022

A liquid CPU cooler works by circulating a coolant through the CPU, which lowers its temperature. By doing this, the CPU can run at a higher speed and achieve better performance.

Liquid CPU coolers are generally more expensive than air-cooled CPUs, but they offer superior cooling performance. So, how does a liquid CPU cooler work?

What is a Liquid Cooler?

An AIO or liquid cooler is a sealed liquid cooler that combines the water block with an integrated pump and usually two fans.

It is a type of computer cooler that is designed to be installed in a case or onto an existing motherboard. These coolers are made up of a water reservoir, a pump, and fins extending from the reservoir.

They are often more expensive than traditional CPU coolers but are worth the price. AIOs use water cooling technology to keep the CPU cool. 

The integrated fans increase the surface area of the heatsink, which results in better heat dissipation.

AIO CPU coolers are easy to install as they don’t require the installation of the fans. Some AIO CPU coolers also look aesthetically good, with the fans matching the color of the water block.

AIO CPU Coolers are a great choice for beginners who are not quite sure what kind of cooler to purchase. If you do not want to go through the hassle of cleaning and maintaining a traditional heatsink, then you should consider an AIO CPU Cooler.

How does a liquid CPU cooler work?

A liquid cooler is a device that sits on your desktop or in your computer case and uses a circulating pump to move liquid through a radiator. Essentially, it’s like a thermos for your computer.

The liquid cools the processor and other components, keeping them running at their peak performance.

The process works with a baseplate that is attached to the CPUs using a layer of thermal paste, similar to air cooling. As a result, the heat transfer between the two surfaces is improved.

The water block, which is supposed to be filled with coolant, is made up of the metal surface of the baseplate.

As it passes through the water block, the coolant absorbs heat from the baseplate. It then travels through the system and into the tubes that go to a radiator.

The radiator allows the liquid to be exposed to air, which helps it cool, and the radiator’s fans subsequently transport the heat away from the cooler.

The coolant is subsequently re-introduced into the water block, and the cycle starts all over again.

Things to Consider when Buying a Liquid Cooler


If you’re thinking about purchasing a CPU cooler, be sure to consider the size of the cooler before making a purchase. A large cooler will require more space on your motherboard or case and may be too big or heavy to fit. Whereas a small, lightweight cooler may not offer enough cooling capacity for your processor, so you need to decide something in between.


CPU coolers play an important role in a computer’s overall performance. That’s because they keep the processor temperature low, which allows the computer to run at its best. However, not all CPU coolers are created equal. So before you buy one, make sure to consider the performance of different models.

Here are some factors to consider: how much heat does the cooler produce? How much does it cost? And is it compatible with my motherboard and processor? Generally speaking, more expensive CPU coolers outperform less expensive ones on average. But that’s not always the case—and there are plenty of inexpensive models that perform just as well as more expensive ones.

So before you buy a liquid cooler, be sure to examine your specific needs and compare different models based on those needs.


If you’re in the market for a water cooler, be sure to consider the noise it will make. Many low-priced coolers produce heavy noise that can be disruptive and annoying. If you’re concerned about noise levels, look for a cooler with a noise level of less than 25 Db at least.

Ease of Installation

When considering which liquid cooler to buy, it’s important to consider the ease of installation. Many coolers come with installation instructions and a mounting bracket, making installation a breeze. Some coolers require no tools to install, while others may require just a Phillips head screwdriver. Consider what kind of installation you’re likely to need, and choose a cooler that has easy installation instructions.


The liquid cooling process works by taking heat away from the processor and transferring it to a radiator, which is then cooled and returned to the processor.

It is an effective way of cooling the processor and is also a great option if you are into an aesthetic PC build.

Overall, a liquid CPU cooler is a great alternative to a traditional air cooler. They are quieter, more efficient, and look much nicer in a system.

If you are looking for a new cooler for your system, I would highly recommend considering a liquid CPU cooler.

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