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Any Benefit Or Detriment in Using 140mm Fans on a 120Mm Radiator?

Last Updated on December 11, 2022 by Tech Questions

The debate over whether or not it is beneficial to use a 140mm fan on a 120mm radiator has been going on for some time. There are proponents on both sides who argue that their respective method is superior. In this article, we will take a look at the pros and cons of using a 140mm fan on a 120mm radiator to see if there is any merit to the claim.

One of the main arguments for using a 140mm fan on a 120mm radiator is that it provides better airflow. This is due to the fact that the larger fan blades of the 140mm fan can move more air than the smaller blades of the 120mm fan. Proponents of this argument claim that this results in better cooling performance, as more air flow means more heat dissipation.

Additionally, they argue that using a 140mm fan also reduces noise levels as there is less turbulence created by the larger blades.

There are a few potential benefits to using 140mm fans on a 120mm radiator. The most obvious benefit is that the larger fans can move more air, which can improve cooling performance. Additionally, the larger fans may also be quieter than smaller fans because they have less work to do to move the same amount of air.

However, there are also some potential drawbacks to using 140mm fans on a 120mm radiator. First, the larger fan size means that there is less surface area for heat transfer from the radiator to the fan blades. This could potentially lead to higher temperatures inside the case and/or poorer cooling performance.

Additionally, 140mm fans may not fit as easily into some cases as 120mm fans, so you may need to make modifications in order to use them. Overall, whether or not using 140mm fans on a 120mm radiator is beneficial depends on your specific situation and needs.

I compared static pressure fan vs airflow fan on a radiator… here is what happened

Is There a Big Difference between 120Mm And 140Mm Fans?

There is a big difference between 120mm and 140mm fans. The 120mm fan is smaller in diameter, while the 140mm fan is larger. This means that the 120mm fan will move less air than the 140mm fan.

Additionally, the 120mm fan will be quieter than the 140mm fan, since it has less area to move the same amount of air.

Are 140Mm Fans Better Than 120Mm Fans?

There is no definitive answer to this question as it depends on a number of factors, including the specific application and the preference of the user. Some people may prefer 140mm fans for their larger size and airflow, while others may find 120mm fans to be more convenient or easier to install. Ultimately, it is up to the individual to decide which type of fan is best for their needs.

Are 140mm Fans Quieter?

Are 140mm fans quieter? This is a question that often comes up when people are looking for new fans for their PC. The simple answer is yes, 140mm fans are generally quieter than smaller fans.

But there are a few things to keep in mind when looking at fan noise levels. First, the size of the fan does not necessarily dictate how loud it will be. There are many factors that can affect a fan’s noise level, such as the quality of the bearings, the blade design, and even the shape of the blades.

So while 140mm fans tend to be quieter than smaller fans on average, there will always be some exceptions. Second, the speed at which a fan spins also has an effect on its noise level. In general, faster-spinning fans will be louder than slower-spinning ones.

So if you’re looking for a quiet fan, you’ll want to pay attention to both the size and the speed rating of the fan. Finally, it’s important to remember that even the best-designed and quietest140mmfan will still make some noise. If you’re looking for truly silent operation, you may need to look into water cooling or other alternatives.

Can You Put 120mm Fans on a 240mm Radiator?

Yes, you can put 120mm fans on a 240mm radiator. Radiators are often sold with various size options for the fan(s) that can be used with them. The radiator size will always be larger than the fan size – for example, a 240mm radiator will have two 120mm fan slots.

This is because the surface area of the radiator fins is greater than what one 120mm fan can cover by itself. Using multiple smaller fans on a single large radiator gives you more flexibility in terms of airflow and noise control.

Any Benefit Or Detriment in Using 140Mm Fans on a 120Mm Radiator?

Can You Put 140mm Fans on a 240mm Radiator?

You can put 140mm fans on a 240mm radiator, but it is not recommended. The reason for this is because the larger fan will not be able to spin as fast as the smaller fan, which means that it will not be able to push as much air through the radiator. This will ultimately lead to lower cooling performance.


There really isn’t any benefit or detriment in using 140mm fans on a 120mm radiator. It all comes down to how you want to set up your cooling system and what you’re looking for in terms of performance. If you have the space for bigger fans, then go for it!

But if you’re limited on space, then using smaller fans will do just fine.