how to change cpu fan speed without bios – step by step

how to change CPU fan speed without bios

This article is related to how to change CPU fan speed without bios. For those who don’t know, BIOS is software that comes with the motherboard and it contains all of the information about your hardware and other computer information. So if you want to change CPU fan speed without bios then just go on reading this article because I am going to explain it here.

Even though changing fan speed using BIOS is one of the best ways, sometimes it cannot be done. If this happens to you, there are two other methods that can help control your fans without BIOS settings.

1.) Fan Control Software.

2.) External Fan Controller.

Fan Control Software:

If you want to set up fan speed, then there are many software’s available like Corsair Link, Notebook Fan Control, etc. However, in this article, we will explain how to change CPU fan speed without bios

For the same task and it is good as well!

What is SpeedFan?

Manually control your computer’s fans with Speed fan. The free software can monitor and automatically change the speed of the fans for you based on temperature changes in CPU components.

Old Software is still considered to be the most effective and efficient. However, it may turn out difficult for beginners due to being a little complex or having advanced knowledge of CPUs needed. It’s important you are precise with your actions because even small mistakes can damage hardware components.

Want to set up the software but don’t know where to start? We recommend you follow these steps carefully:

Step 1: Download & Install SpeedFan

how to change cpu fan speed without bios

The official website of SpeedFan provides a safe download. Once downloaded, the program is quick and easy to install in order to ensure proper security for your CPU.

First, download the software and install it in your system after downloading is complete. Then wait for it to start functioning.

This application allows you to scan your PC and get information about the RPM of fans, temperatures, motherboard chipset, graphics card, and hard disk. If you can’t figure out how it works at first (it’s not like Windows), don’t worry!

Now that you have the files available on your desktop it is time to install them. The next step will ensure this process goes smoothly so pay attention!

Step 2: Play With Some Fan Controls

Automatic fan speed is a complex feature that not everyone understands. Things may go wrong, and this is why we recommend getting your hands on manual controls.

SpeedFan can be complicated for beginners or anyone who doesn’t understand technicalities like automatic fan speeds. Using SpeedFan’s Automatic Fan Speed option might cause problems sometimes because it won’t always work the way you want it to – which means having access to manually controlling fans becomes crucial in these cases!

To configure the settings, first, click “Configure” then select the advanced tab. Under this tab, you should change your motherboard chipset by selecting it from a dropdown menu in the Chip option. Now go to PMW Mode options and choose all of them while setting them manually, because each one has its own unique function that will be helpful for overclocking process if activated individually instead of collectively using default values respectively named as 1 mode (Primary), 2 mode (Secondary) & 3 modes (Tertiary). Once done save these changes with the OK button before close the configuration window without any error message popping up on the screen!

Step 3: Set up automatic fan control.

Automatic fan control is not manual like step 2 explains. The fan speed can be set up to automatically increase if your CPU starts overheating and when the temperature returns, it will reduce.

In order to set up automatic fan control, click on “Configure” and then check the box for advanced fan control. It’s a bit complicated so we advise watching this short YouTube tutorial here because it will help you get everything right



If you’re out of options, consider buying an external Fan Controller. This allows manual control and monitoring to keep your PC at a safe temperature range. Corsair Commander Pro, Thermaltake Commander, Noctua are all examples of quality fan controllers on the market today!

The best way to keep an optimal temperature is with a solid fan controller. You need good quality and reliable ones for the best result as they will help maintain a balance between your CPU’s heat level and the speed of its fans.

The fan controller is an essential part of any good PC build. Make sure it’s the right one with great controls, aesthetics, and pin supports that can last a long time.


What is the reason for running a computer fan all the time?

Because of the heat sink or temperature sensor, your computer fans may are run at full speed, it could be because of the heat sink or temperature sensor. It is also possible that there’s an issue with the processor, but this problem most commonly arises due to a faulty temperature sensor.

What causes a computer fan to run loud?

There are many factors that can cause a computer fan to speed up. Some of these include but aren’t limited to excessive files being downloaded or stored on the device, some applications running in the background and using excess CPU usage while doing so, etcetera.

To avoid this problem, install SpeedFan or buy External Fan Controllers. To avoid overheating and computer slowdown due to a faulty heat sensor, use the software program SpeedFan or purchase an external fan controller.

What Is Good Fan Speed?

The ideal fan speed has yet to be defined, as you can never know what the right amount of air may be. This is why software such as SpeedFan is helpful because they monitor your CPU’s cooling system and adjust accordingly.

While casually using your computer, keep the fan speed at 50-70% of RPM. However, while gaming and doing heavy 3D work or video editing, it is important to set all fans on 100%, as this will prevent overheating from occurring in a timely manner if you see that temperature going above 60°C – 70°C.

Bottom Line:

To change the speed of your CPU fan, you need to use software such as SpeedFan or devices like External Fan Controllers. A computer that isn’t supported by BIOS is very harmful to its hardware and software because it heats up so much. It’s really important to have control over your PC’s cooling system in order to keep everything working correctly!


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