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How To Change Computer Case Fan Speed Without Bios

  • How to
Change Computer Case Fan Speed Without Bios

Many people face the pain of poor airflow when their computer case fan is severely limited in speed. However, there are many ways to change your computer’s fan speed without the help of the BIOS. Even if you’re not too familiar with how this works, it’s pretty easy! The laptop can heat up due to many factors.

For example, you will require more computing power if you’re trying to play games or edit videos. When the computer is under this much stress, the fans may not have enough energy to keep your processor from heating up.

You can change two things that may help your fan speed on your computer without any changes to the bios: The level of processing power being used and how much air is flowing into and out of your computer case Can fan speed be changed without using BIOS?

Yes, it can be changed without using BIOS. Let’s take a look at some of the ways you can change the fan speed on your computer without BIOS:

By using CPU Fan Speed Monitor Software:

The most common method is using a program such as SpeedFan. It’s free, and it works perfectly on most computers. It was initially intended to control the fan speed of laptops, but it also works with desktops and servers.

This is an excellent program if you want to manage all your fans in one place or want to increase airflow in your case (more coming soon). This is an excellent method if you are using your computer for gaming or video editing, as it will increase the PC’s fan speed. It works in conjunction with SpeedFan to monitor all your fans at once.

Step 1: Download SpeedFan and configure the speed controls to your liking.

Change Computer Case Fan Speed Without Bios
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Step 2: Open SpeedFan and your computer is listed as a single monitor.

Step 3: Click on the monitor to see all your fans. You can set up each fan individually to increase their speed.

Step 4: Configure The Settings (Manually)

Change Computer Case Fan Speed Without Bios
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  • Click on “Configure” and then click on “Advanced” settings
  • Find your PWMs in the menu by clicking on all the chip dropdown choices if you are unsure about their location. Select the preferred PWMs you want to control.
  • You will be presented with two alternatives: choose the manual control option or the software control option based on your preferences. Once you have made your choice, click “remember” to save your settings.
  • Go back to the main menu and see the options you have selected. After selecting the PWM you set, you can manually type or use toggle buttons to modify the fan speed.

Step 5: Set up fan speed automatically.

You can automatically set up and increase case fan speed by selecting “configure” from the dropdown menu after clicking the “Speeds” tab. Choose the rates you want and alter them as necessary, modifying them to your demands as you keep an eye on the software. Additionally, you can adjust your fan speeds based on the temperature the software records.

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2. By Changing Airflow Levels:

If you have a computer that isn’t too powerful, it’s possible that there’s not enough airflow getting into your case or out of it when gaming or editing video. You can adjust the amount of air flowing into and out of your case by adjusting the fan speed on the CPU and the system fan speed. This will help increase the airflow and provide cooler air to the processor.

3. Use an External Fan Controller:

You can also purchase an external fan controller that plugs into your computer and allows you to control the speed of each fan. You can buy these controllers on sites like eBay, Amazon, and Newegg.

These fan controllers will plug into your computer, and software, computers, or a PC will control all the fans in your computer. You can also use these controllers to control other aspects of your computer, such as the case fans or the processor’s fan speed.

The benefit of using external fan controllers is that you can control the CPU fan speed and cool all your fans from a single point. External fan controllers are an easy way to control the airflow in your computer case, but you can modify them if you want more control over the fan speeds.

4. Modify the Computer Case:

If you have a case where there isn’t enough air to keep your computer cool, then it might be time to change some components to allow more air into your case. You can buy different features that allow more air into your computer, such as a new power supply or CPU cooler. Computer cases usually come with fans designed for optimal airflow that leave little room for modification.

5. Use built-in software:

If you’re using a motherboard with built-in fans of its own, you may be in luck. Many motherboards have built-in bios software that automatically lets you change your computer’s case’s fan speed. The bios are the first thing that starts when the computer is powered on. It checks for hardware, and if it finds something, it will check for updates on the motherboard and adjust fan speeds based on bios settings. The BIOS software allows you to adjust fan speeds manually or automatically, depending on your preference.

6. Use BIOS Fan Control:

The last option for fans is to use BIOS and improve your computer case’s airflow. The bios fan settings can be accessed from the keyboard, the options menu, or by pressing a key while powering the system. You will usually see a screen that displays your hardware information, including temperatures and fan speeds. You can increase or decrease the rate of each fan in your computer based on what you think is appropriate. Doing this regularly will help keep your system cool and well-stocked with airflow (but don’t overdo it).


In conclusion, there are many ways to increase your computer’s fans and increase airflow in your computer’s case. This will help keep the laptop cool and reduce the risk of overheating and damaging your hardware.

Paying attention to your system temperature will prevent injury and improve the lifespan of your hardware. These methods can adjust the fan speed on laptops like HP laptops, Dell laptops, MSI laptops, Lenovo laptops, and many more well-known laptop brands available in the market.

Keeping the control on pc fan speed at a minimum is important because it prevents dust buildup inside your system, which can clog up fans and cause severe problems with short-term or long-term use. The most common causes of pc fan failure are dust or dirt buildup or fans damaged by water or power surges.


Can you manually control fan speed?

Yes, if you know how to do this yourself. There are several tools available that allow you to change the fan speed manually.

Do I need a virus scan before running a BIOS upgrade?

Yes, anytime you want to upgrade anything, such as the BIOS, this needs to be done before installing the new updates; otherwise, it will not work correctly and can cause permanent damage. If your computer operates properly with an updated BIOS, it is recommended that you not run updates while they are being installed.

How can I check if the fan is working perfectly?

You can check if your cooling fans are working perfectly by checking the difference between CPU and motherboard temperatures.

How much more air can I get from my computer fan?

The general rule is that a closed or open system has an inversely proportional relationship between noise and airflow.

What is considered good fan speed?

The fan speed depends on how your computer is built, how much airflow is needed, and the type of cooling used to keep the system cool. The 50–70% RPM rate is good enough for casual use of your computer.