How To Check If The CPU Cooler is Working?

Several high-value tasks are carried out every day on your PC. Multiple applications are opened, interacted with, and closed for accomplishing these tasks. Nevertheless, all these applications heat up your PC due to all the strain they place on it. 

You won’t be able to run your computer for very long without a CPU cooler, which keeps the integrated circuits and microprocessors cool. Therefore, it is crucial you keep your CPU cooler in good working order. Nevertheless, how do you know if the CPU cooler is working?  You don’t have to worry if you don’t know how to do that. I will explain how to do it.

Is CPU Cooler Working

How To Know If Your CPU Is Heating Up Too Much?

First of all, determine how hot your system really is before checking whether the cooler is working or not. You can find out the temperature of your hardware and motherboard by downloading software that can tell you this information.

You will see different readings on the screen once you run the software. Voltage readings, fan speeds, and other data will be displayed. You don’t need to be concerned about these numbers.

In the Temperature section, you will need to pay attention. The CPU readings will be at least three under this. In most software, one reading will indicate the current temperature of your CPU, while two other readings will indicate the minimum and maximum temperatures your CPU has reached.

There is no need to be concerned if the temperature of your CPU is in the upper 40s as these temperatures are fairly normal. You need to be cautious when the temperature reaches the 70s. You should take this seriously. You need to be concerned if the temperature does not come down.

It indicates that the CPU cooler is unable to cool the system if the temperature doesn’t decrease.

How To Check If Your CPU Cooler Is Working?

It is necessary to open up your cooler and examine what is inside it to determine whether it is working properly or not. The first thing to examine is the dust inside. There may be a cause for steady heat build-up if the fans, motherboard, and other components are dust-covered.

To remove dust from your components, you simply need to clean them. Overclocked CPUs can also cause your PC to run hot. Such a situation requires you to immediately cancel any overclocking and restore your system to normal speeds. In the event that this method does not work, you will need to upgrade the fan and heat sink of your CPU cooler. You should be able to resolve the issue this way.

Using Third-Party Applications

In order for the CPU cooler to work properly, the processor’s temperature should remain within normal limits. A CPU cooler’s performance can be accurately assessed by this method. 

In addition to monitoring the voltages and fan speeds in your computer, there are several applications available like CPU-Z and HWINFO that show you the temperature of the different components on your computer. 

You don’t need to be tech-savvy in order to use these tools, and they are free to download and extremely easy to use.

When you compare those temperatures with the average temperatures for your processor, you will immediately know if the CPU cooler is working properly.

Ensure you measure both idle and workload temperatures, keeping an eye on your background processes as well. The processor gives different values of temperature for being idle and under load.

CPU cooling Check

To check if your liquid cooler is working, you may need to follow these steps if you notice that it is overheating even when you aren’t performing a high-end task.

It is evident that the CPU liquid cooler is working properly if the CPU temperature is considerably lower and the temperature does not increase even when you are performing a high end task.


A thermal pad can also be checked for deterioration and leaks. Thermal pads can be removed and tested. If the temperature drops after pressing the thermal pads on the CPU, you should turn it off.

The CPU heat sink should be checked

The CPU heat sink and liquid temperature can also be checked. In comparison with the thermal pad, compare these readings. As long as there is no difference in the temperature drop, thermal pads can be used safely.

Coolant should be checked

Testing the coolant to see if there are any problems is the next step. Dry off the copper tubes after applying the soap. You can blow air on the pipes or put some ice cubes on the cleaned areas. Make sure they get cooled off within a reasonable amount of time.

Heat transfer rate is determined by several factors. There are several factors to consider, including surface area, fluid quality, and flow rate.

BIOS Access For Motherboards

The fan is one of the main components of the cooler, as you can see from the cooler’s functioning. 

Check if the cooling fan is spinning optimally to see if the cooler is functioning properly.

When your computer starts, you can check this by accessing the BIOS of your motherboard, which you can do by pressing a certain combination (search for your motherboard’s keys online). 

This allows you to find out the fan’s speed in RPM (Rotations Per Minute) and compare it with the fan issued by the company. Your cooler’s performance will be determined by this test.

How To Check Your CPU Cooling If You Have A Liquid Cooling Pump?

When it comes to liquid cooling pumps, you can only tell if they are working properly by looking at their RPM. You need to connect your pump to your motherboard’s fan header in order to get the pump reading. It won’t work any other way.

In order to check the pump’s RPMs, you will have to download one of the free programs that provide this information. If you search Google for these programs, you’ll find a lot of them. Your pump needs to be replaced if the readings show N/A or 0.

The CPU cooler’s status is straightforward to check. In the event that you cannot open the CPU, it’s recommended that you call a technician. Your CPU and CPU cooler can be fixed by them.

people Also Ask (FAQs)

How long will the thermal paste on the liquid coolers last?

Liquid Coolers Have Thermal Paste That Can Last Up To Three Years. In Most Cases, Thermal Paste Comes In A Bottle That Specifies Its Shelf Life.

How To Check If The CPU Fan Is Working?

A motherboard’s bias or a relevant application that displays RPM values can be used to determine whether the CPU fan is working. The CPU fan is not working if it is giving “0” values.

How often should you replace the thermal paste on the cooler?

Occasionally, thermal paste may need to be replaced. Any time you remove the cooler, including to clean it, you’ll need to replace the paste.

Final Word

Here are some options for checking if CPU liquid coolers are working properly. This discussion should provide you with more information about how to efficiently manage CPU liquid cooling systems.

You might find it quite difficult to determine whether your liquid cooler is working properly if you are using one. It is only by checking your PC’s temperature that you can determine if your cooling system is malfunctioning.

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About Jennifer Jonh

Welcome to this blog. I'm the writer and founder. This industry has been my career for over 10 years. I have tested and reviewed hundreds of graphics cards for custom PC builds throughout my journey.

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