How To Change CPU Fan Speed Without Bios – Secret!

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The CPU otherwise known as the Central Processing Unit is one of the core structures of a PC. Due to its massive processing power and running programs, it becomes heated in no time. Especially if you are using your PC for gaming purposes then you may have noticed the temperature rise in your CPU. So, you should raise your fan speed. You can control your fan speed with or without Bios. So, a common question appears – how to change CPU fan speed without Bios.

First and foremost in air-cooled processors, the CPU fan is the most important part that keeps it cool. You can change the CPU fan speed in multiple ways. This way you can keep the airflow at maximum rate and hence your CPU remains cool.

Bios settings alternation can be confusing for new users. That is why you should know how to change CPU fan speed without bios. These are far more convenient and less time-consuming than making a change in the bios.

How To Change CPU Fan Speed Without Bios – Proper guideline

Bios is the pre-installed operating system for the motherboard. It controls everything installed within the motherboard. Hence, it is the primary way to change the CPU fan speed from the Bios. But if you are not familiar with the Bios operating system then you can also do it from the default operating system.

Some third-party software is available that creates a bridge between the motherboard and the installed operating system. Therefore, using those you can bypass the internal hardware settings options that were only available to get access from the bios.

It becomes easier if you are using the latest and most updated operating system. Besides, it is better to update your bios as well. Therefore, the answer is yes, you can change the CPU fan speed without BIOS.

The right way to change CPU fan speed without BIOS

There are several ways to change the CPU fan speed without interfering with the BIOS. But the easiest, and most effective ways are stated below for the new users.

Using SpeedFan

Speedfan is one of the most effective software to control and monitor CPU fan usage. This software is designed for the Microsoft Windows platform only. It is available to be downloaded and installed free of cost. For beginners, it can be hassling to adjust the user interface of the Speed fan.

That is why it is recommended to follow the steps precisely to get the job done without any trouble.

Step One: Downloading and Installation

The free Speedfan software is available on the official website of Speedfan. Go to the website and click on Downloads. Tap on the latest version available for the software. Make sure to match with the bit architecture of the PC.

After the setup file has been downloaded, install the software to your PC. After that open the software interface by double-clicking on it from the desktop icon.

Step Two: Controlling the CPU fan speed

The CPU fan speed means changing the RPM speed of the motor. There are two options available for controlling the RPM. These are the Automatic and Manual options. Click on the Configure button and select the Speed tab.

From the Speed menu, tap on the “Automatic Fan Speeds” option. This will set the CPU fan speed to automatic. This means that whenever the CPU usage gets higher and the performance core uses its maximum peak performance the RPM increases.

But, it is not very useful because it takes time for the program to take over and interpret the overheating situation. That is why it is better to manually control the RPM of the CPU fan. To do this, click on the Configure button from the main menu and select the “Advanced” option.

Now, the motherboard chipset should be selected precisely. Different motherboard brands and models have different chipsets. Finally, select and manipulate the PWM options individually to control the RPM of the CPU fan. Lastly, make sure to click on “Apply” and then Ok to save the settings.

Follow the tutorial video below if you have any confusion.

Open Hardware Monitor

Open Hardware Monitor is basically monitoring and Analyzing software for the Windows platform. Since it is open-source software, you can download it for free. To use it, first you have to download the setup file from the official website.

After that, install the software to your PC using the required settings and architecture of the processor. From the main user interface, you can see the temperature of the CPU and the current RPM of the CPU fan.

From the Advanced settings option, you can manually control the RPm of the cooling fans according to your requirement. This way, the heat flow from the CPU can be controlled very easily. You can also set the RPM to automatic to avoid any hassle of settings.

NOTEBOOK Fan Control

Another open-source software to monitor the internal hardware of a PC is the Notebook Fan Control. It is available on the Microsoft Windows platform for free. To use it, simply download and install the software from the Notebook Fan control official website. 

You can monitor and analyze all the hardware criteria from the main menu of the Notebook Fan control application. The current RPM and temperature of the CPU are displayed visually. The manual method to control the CPU fan rpm is very convenient in this software.

A slide bar is present using which you can set the RPM of the CPU fan. Therefore, to decrease the CPU temperature you have to increase the fan speed, and to do the opposite simply slide down the speed bar.

HW Monitor

Hardware Monitor or HWMonitor is a good tool for controlling the CPU fan speed. It does not require any Bios access. It can be downloaded free of cost from the official website. You can easily control the cabinet fan RPM using this software.

This tool can be used to track the maximum and minimum fan speed. And you can manually control the fan speeds as well. All you have to do is input the RPM values in the Advanced settings section. And that will lock the RPM until you change it back to normal.

ZOTAC Firestorm

The ZOTAC firestorm not only controls the CPU speed but can also be used to control the GPU speeds as well. It is an open-source software therefore, you must download and install it from the official website.

In order to control the CPU fan speed, open the main interface of the software. On the left bar, you will find three defined options saying Auto, Manual and Advanced. The auto mode sets the RPM based pon the temperature spike detected by the CPU.

You can set the speed of the CPU fan in percentage using the manual option. If you want to lower the CPU temperature very quickly, then set it at 100% speed. Though the constant higher speed of the CPU fan will result in consuming more power.


The Argus monitor is rated as one of the most convenient fan controllers for the Microsoft Windows platform. It can be downloaded from the official website of the Argus Monitor website without any cost.

This software is compatible to control and monitor the fan speeds of every temperature-based source such as HDD, CPU, and GPU. To use it to control the CPU fan speed you have to install its specific bit system on your PC.

After installation, open the application and click on the mainboard tab from the upper main menu. You will see three options naming Fan speed, Fan Control, and Temperature. Click on the Fan speed. Input the desired RPM value in the RPM tab to control the speed.

Besides, from the graphical representation of temperature vs speed percentage, you can shift the speed of the CPU fan. Make sure you save the settings you have applied by pressing the OK button.


This software is one of the intermediate-level hardware controlling applications made for the Windows platform. You will get the fan speed control option in the 64-bit version of the software. Therefore keep in mind while downloading the latest version.

The basic operation is similar to that of other software. You have to maintain the RPM to manipulate the Speed vs temperature curve in percentage. This software has some limitations such as not all brands of motherboards are supported by it.

Easy Tune 5

Another option to control the CPU fan RPm can be the use of Easy tune 5. This software comes in both free and licensed versions. There are some limitations in the free version but you can easily control the fan speed.

To install this you can visit the GIgabyte’s official website. After installation, go to the Smart-Fan tab available on the main menu. Here you can configure the fan speeds manually. Depending upon the temperature reading of the CPU you can control the CPU fan speeds in RPM. 

If the temperature hits 60 degrees celsius, then it is recommended to set the RPM at the highest peak. The north-bridge cooling fan allows you to set the timer for the manual input as well. After inputting the settings for a cooling fan, click on the OK button to save it.

Corsair Link

Corsair Link is the official Fan controlling application from the popular hardware manufacturing Corsair. The fan speed vs temperature curve can be manipulated using this software. After downloading and installing the software, open the main interface.

Go to the Performance tab and select the CPU cooling fan speed option. There you can set the curve according to your desire. The RPM is controlled by the percentage. You can keep the fan speed at 30% when the CPU temperature is around average. 

While throttling and increasing temperature such as 60-80 degrees Celsius, set the fan speed at 100%. You can also select the timer according to your activity with the PC.

Think pad Fan Controller

The TPfan controller can be downloaded from THINKPAD’s official website. It is an open-source software from the popular technology brand Thinkpad. It can run in the background without interfering with the activity of the other applications.

You can install both 32 and 64-bit versions depending upon the architecture of the motherboard and CPU. You will have three Modes of application which are Bios embedded, Smart (automatic), and Manual. In the manual option, you have to input the RPM ranges for the CPU cooling fan and the temperature limit in celsius. 

How do I change my CPU fan speed manually?

Considering you want to have total control over your CPU fan without using any sort of software. Then you have to make changes to the hardware level. You can use the External CPU fan controller to manually shift the speed of the fan.

You can buy different external and controlling switches from the tech shops or online marketplace. One such tool is the Thermaltake Commander F6. You have to select the compatible socket pins for your installed cooling fans.

After installation, all of the cooling fans can be manually controlled using the switch. The knobs and switches in the controller can be manipulated to change the fan RPM. Depending upon the temperature range of the CPU you can easily increase or decrease the RPM range of the cooling fans.

How do I adjust my CPU fan speed in Windows 10?

The Microsoft Windows 10 operating system comes with a default CPU fan speed controlling option. You need not install and switch third-party software to use this feature. Besides, you do not have to access the BIOS system to manipulate the fan speed.

For this go to the Control Panel and select the Power Options button. After that, click on the ”Edit Plan Settings” button. Now select the System Cooling policy and mark the option as ACTIVE. In this method, you cannot select the RPM rate manually.

Frequently Asked Question

Got some more questions in mind. We have a section for you below. Check it out.

Is it possible to increase CPU fan speed?

The CPU fan has a limit on the RPM rate. It differs with different brands. Not all CPU fans have a very high RPM rate. You can increase the CPU fan speed using open source software or changing the BIOS. But it is not possible to cross the RPM limit. You can set a 100% RPM rate to use the CPU cooling fan at the maximum rate.

What is a good CPU fan Speed?

The good CPU fan speed is variable. It changes with the change in the CPU temperature. On average temperatures such as 30-40 degrees of Celsius, the speed of the cooling fan should be 25-30%. 

If the temperature increases to 40-50 degrees the speed percentage should be around 60-70%. When the CPU temperature crosses 60 degrees of celsius it is better to set the maximum speed for the cooling fan 


Having control over the speed of the CPU is quite important for different tasks to run on a PC. Especially if you are a hardcore gamer, then is mandatory to monitor the CPU and control the fan speeds manually then leave it to automatic.

It is because, while gaming or running heavy simulation the CPU overheats in a short period of time. For this, the cooling fans should be running at a maximum rate to lower the temperature. Controlling the fan speed from BIOS does not give real-time manipulation.

That is why you have to know how to change CPU fan speed without BIOS. This way you control the fan speeds according to your CPU requirements at any time very easily.

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Gary Scott

Hi There, I am Gary Scott, a Computer Engineer, and owner of this website. My friend and I created this website to share our knowledge, expertise, and experience with our fellow Computer community and pc enthusiast. I am a member of the Association for Computing Machinery (ACM) and the Institute of Electrical and Electronics Engineers (IEEE). I have been writing for Motherboard, CPU, GPU, RAM, Power Supply, Intel/AMD comparisons, CPU/GPU benchmarking, Gaming performance, Xbox, Play Station, and How to build your own PC. I will be regularly updating this website with new resources, If you have any questions or comments, please feel free to contact me.

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