Computer Hardware

How To Check CPU Fan Speed

When it comes to keeping your computer running smoothly and efficiently, one often overlooked component is the CPU fan. Did you know that the speed of your CPU fan can have a significant impact on the performance and lifespan of your system? It's true. Without proper cooling, your CPU can overheat, causing it to slow down or even fail. So, how do you check the fan speed to ensure your computer is running at its optimal temperature?

Checking CPU fan speed is a relatively simple process. First, you'll need to access your computer's BIOS or UEFI settings. These settings can typically be accessed by pressing a specific key during the boot process. Once in the BIOS or UEFI settings, navigate to the hardware monitoring section, where you should find information about your CPU fan speed. If the fan speed is not displayed, there are various third-party software programs available that can provide this information. By regularly monitoring your CPU fan speed, you can ensure that your computer stays cool and performs at its best, preventing unnecessary slowdowns or potential damage.



How To Check CPU Fan Speed

Understanding the Importance of Checking CPU Fan Speed

When it comes to computer performance and longevity, maintaining optimal CPU temperatures is essential. The CPU fan plays a crucial role in dissipating heat generated by the processor, preventing overheating and potential damage to the hardware. Monitoring and checking the CPU fan speed regularly can help ensure it is functioning correctly and efficiently. In this article, we will explore different methods to check CPU fan speed and provide you with valuable insights on why it is vital for the overall health of your computer system.

Method 1: BIOS/UEFI Settings

One of the most reliable ways to check CPU fan speed is through the BIOS or UEFI settings. To access these settings, restart your computer and enter the BIOS/UEFI menu by pressing the designated key (commonly Del, F2, or F10) during the boot-up process. Once you are in the BIOS/UEFI interface, navigate to the hardware monitoring or fan controls section. Here, you will find detailed information about the CPU fan speed, including RPM (Rotations Per Minute) or percentage.

Keep in mind that every motherboard manufacturer has a different BIOS/UEFI interface, so the location of fan speed settings may vary. Look for terms like "fan control," "fan speed," or "system monitoring" to locate the relevant options. Once found, you may have the option to modify the fan speed settings depending on the capabilities of your motherboard.

When checking the CPU fan speed in the BIOS/UEFI settings, it is essential to ensure that the fan is running at an appropriate speed. This speed can vary based on factors such as CPU load, ambient temperature, and the specific requirements of your computer system. Refer to the manufacturer's guidelines or consult expert resources to determine the optimal fan speed range for your CPU.

Method 2: Using Software Applications

If accessing the BIOS/UEFI settings seems daunting or you prefer a more user-friendly approach, several software applications can help you check CPU fan speed on your computer. These applications provide comprehensive system monitoring and allow you to keep an eye on various parameters, including CPU temperature and fan speeds. Some popular software options include:

  • SpeedFan: SpeedFan is a robust and widely used software that provides real-time monitoring of temperatures, voltages, and fan speeds. It also allows users to modify fan speed settings manually.
  • HWMonitor: HWMonitor is another popular program that provides detailed information about hardware components, including CPU fan speed. It displays real-time data in an easy-to-understand format.
  • Open Hardware Monitor: Open Hardware Monitor is an open-source application that offers similar functionality to SpeedFan and HWMonitor. It supports a wide range of sensors and allows users to monitor various system parameters.

When using software applications to check CPU fan speed, make sure to download them from trusted sources and keep them updated to ensure compatibility with your system. These applications can provide valuable insights into your computer's performance and help you identify any potential issues with the CPU fan.

Method 2.1: Configuring Fan Speed with Software

One advantage of using software to check CPU fan speed is the ability to modify fan speed settings. If your software of choice supports fan control, you can adjust the fan speed to achieve optimal cooling for your system. However, it is important to exercise caution when modifying fan speeds, as setting them too low may lead to overheating, while setting them too high can cause unnecessary noise and wear on the fan.

When configuring fan speed with software, it is recommended to start with the default settings or use the software's auto-adjust feature. Monitor the temperatures and fan speeds under different loads to determine if any adjustments are necessary. If you are unsure about the appropriate fan speed settings for your system, consult expert resources or seek guidance from forums and communities dedicated to hardware enthusiasts.

Remember to strike a balance between cooling performance and noise levels when adjusting fan speeds. Aim for temperatures within the recommended range while keeping noise levels at an acceptable level.

Method 3: Physical Inspection

In addition to checking CPU fan speed through software or BIOS/UEFI settings, a physical inspection of the fan can provide essential information about its functionality. Over time, dust and debris can accumulate on the fan blades, obstructing airflow and reducing cooling efficiency. Therefore, regular cleaning and maintenance are crucial to ensure optimal performance.

To inspect and clean the CPU fan, turn off your computer and open the case. Locate the CPU fan, which is usually mounted on top of the CPU heatsink. Carefully remove any dust or debris from the fan blades using compressed air, a soft brush, or a lint-free cloth. Take extra care not to damage the fan or any other components while cleaning.

After cleaning, observe the fan's movement and listen for any unusual noises when the computer is powered on. A properly functioning fan should spin smoothly without excessive noise. If you notice any irregularities, such as grinding sounds or inconsistent rotation, it may be an indication of a faulty fan that requires replacement.

Method 3.1: Replacing the Fan

If a physical inspection reveals that the CPU fan is damaged or not functioning correctly, replacing it is necessary to maintain adequate cooling. To replace the fan, follow these steps:

  • Ensure your computer is turned off and unplugged.
  • Open the case and locate the CPU fan.
  • Disconnect the power cable or relevant cables connecting the fan to the motherboard.
  • Remove the mounting screws or brackets holding the fan in place.
  • Gently detach the fan from the heatsink and remove it.
  • Install the new CPU fan by following the instructions provided by the manufacturer.
  • Secure the fan in place using the mounting screws or brackets.
  • Connect the power cable or relevant cables to the motherboard.
  • Close the case and power on your computer to test the new fan's functionality.

Replacing a CPU fan may require some technical expertise, so if you are unsure or uncomfortable with the process, it is recommended to seek assistance from a professional.

Exploring Advanced Methods to Check CPU Fan Speed

Now that we have covered some common methods of checking CPU fan speed, it's time to explore advanced techniques that provide more in-depth insights into cooling performance. These methods require specialized hardware and software to gather comprehensive data and analyze cooling efficiency.

Method 4: Using External Fan Controllers

External fan controllers, also known as fan speed controllers, provide precise control over fan speeds and allow you to fine-tune cooling performance. These devices are typically installed in a spare drive bay or connected externally via USB or other interfaces. They provide additional features like temperature sensors and manual fan speed adjustment knobs.

Using an external fan controller allows you to monitor and adjust fan speeds in real-time, ensuring optimal cooling during various workloads. It also provides flexibility in managing multiple fans simultaneously, offering a comprehensive cooling solution for high-performance systems.

Method 4.1: Installing an External Fan Controller

Installing an external fan controller involves the following steps:

  • Choose a fan controller that suits your needs and is compatible with your system.
  • Ensure your computer is turned off and unplugged.
  • Open the case and locate an available drive bay.
  • Mount the fan controller in the drive bay using the provided screws or brackets.
  • Connect the fan controller to the power supply using the appropriate cables.
  • Connect the fans to the fan controller, ensuring proper cable management.
  • Close the case and power on your computer.
  • Install any necessary software provided by the fan controller manufacturer.
  • Configure the fan controller settings according to your preferences.

Note that the installation process may vary depending on the specific fan controller model. Refer to the manufacturer's instructions for detailed guidance.

Method 5: Thermal Imaging

Thermal imaging technology provides a visual representation of temperature distribution on various components, including the CPU and its fan. It allows you to identify hotspots, detect inefficiencies in cooling, and pinpoint potential issues with the CPU fan. Thermal imaging cameras detect infrared radiation emitted by objects and display them as color-coded images.

To use thermal imaging for checking CPU fan speed:

  • Acquire a thermal imaging camera suitable for your needs and budget.
  • Ensure your computer is running with the CPU fan operating under normal loads.
  • Capture thermal images of your computer system, paying specific attention to the CPU and its surroundings.
  • Analyze the thermal images and look for temperature anomalies.
  • Compare the temperature readings with the manufacturer's specifications to assess the cooling efficiency.
  • Identify any areas that require further attention and take appropriate action.

Thermal imaging provides valuable insights into the thermal performance of your computer system, allowing you to optimize cooling and prevent potential issues caused by overheating.

In Conclusion

Checking CPU fan speed is an important aspect of maintaining a healthy and efficient computer system. By monitoring the CPU fan speed and ensuring it operates within the recommended range, you can prevent overheating and extend the lifespan of your hardware. Whether you prefer accessing the BIOS/UEFI settings, using software applications, conducting physical inspections, or exploring advanced methods like external fan controllers and thermal imaging, regularly checking CPU fan speed should be a part of your computer maintenance routine. By taking the necessary steps to optimize cooling, you can ensure reliable performance and protect your investment in computer hardware.


How To Check CPU Fan Speed

Checking CPU Fan Speed

Monitoring the speed of your CPU fan is vital to ensure optimal performance and prevent overheating. Here are two methods to check your CPU fan speed:

Method 1: BIOS Settings

1. Restart your computer and enter the BIOS settings by pressing a key (usually Del or F2) during startup.

2. Navigate to the Hardware Monitor or PC Health section using the arrow keys.

3. Look for an option related to the CPU fan speed or RPM.

4. The fan speed may be displayed in RPM or as a percentage. Make note of the value.

Method 2: Software Utilities

1. Download and install a reputable software utility that can monitor hardware, such as SpeedFan or HWMonitor.

2. Launch the software and locate the section displaying the CPU fan speed.

3. The fan speed may be indicated in RPM or as a percentage.

4. Take note of the displayed value and use it as a reference.


Key Takeaways - How to Check CPU Fan Speed

  • Checking CPU fan speed is essential for monitoring temperature and preventing overheating.
  • There are software utilities available that can help you check your CPU fan speed.
  • You can also check your CPU fan speed through the BIOS settings on your computer.
  • High CPU fan speed may indicate a problem with the cooling system or excessive heat.
  • Regularly checking and maintaining your CPU fan can help prolong the life of your computer.

Frequently Asked Questions

Here are some commonly asked questions about checking CPU fan speed and their answers:

1. Why is it important to check CPU fan speed?

Checking CPU fan speed is important because it helps to prevent overheating of the CPU. The fan speed indicates how efficiently the fan is working to cool down the CPU. High temperatures can damage the CPU and affect its performance, so monitoring fan speed is crucial for maintaining optimal CPU health and performance.

Additionally, checking CPU fan speed can help identify issues such as a failing fan or blocked ventilation, which can lead to overheating. By regularly monitoring fan speed, you can take preventive measures and troubleshoot any cooling system problems before they cause damage.

2. How can I check the CPU fan speed on my computer?

To check the CPU fan speed on your computer, you can use various software programs specifically designed for monitoring hardware performance. One popular option is the SpeedFan software, which provides real-time information about fan speeds, temperature, and other hardware components.

You can also check the BIOS settings on your computer to monitor the fan speed. The BIOS may have a section dedicated to hardware monitoring, where you can find information about the CPU fan speed.

3. What is considered a normal CPU fan speed?

The normal CPU fan speed can vary depending on the specific CPU model and the workload being performed. Generally, a normal fan speed can range from 1000 to 2500 RPM (rotations per minute).

However, it's important to note that different CPUs have different cooling requirements, so the normal fan speed can vary. It's best to refer to the manufacturer's specifications or consult with a computer technician to determine the appropriate range for your specific CPU.

4. What should I do if my CPU fan speed is too low?

If your CPU fan speed is below the normal range or is too low, it may indicate a problem with the cooling system. Here are some steps you can take to address this issue:

1. Check for any obstructions: Ensure that there are no dust or debris blocking the fan or obstructing airflow. Clean the fan and vents if necessary.

2. Increase fan speed: Some motherboard BIOS or fan control software allows you to adjust the fan speed manually. Increase the fan speed to an appropriate level that provides sufficient cooling without excessive noise.

3. Consider replacing the fan: If increasing the fan speed doesn't resolve the issue, the fan may be faulty or no longer working optimally. In such cases, it's recommended to replace the fan with a new one that is compatible with your CPU and provides adequate cooling.

5. Are there any alternatives to checking CPU fan speed?

Yes, apart from using software programs or checking the BIOS settings, you can also physically observe the CPU fan to gauge its speed. Carefully observe the rotation speed of the fan blades while the computer is running. You can compare it with the normal speed range mentioned in the CPU specifications to get an idea of its performance.

However, this method may not provide precise measurements and is not suitable for constant monitoring. It is recommended to rely on software or BIOS monitoring for accurate and real-time information about CPU fan speed.



Monitoring the CPU fan speed is crucial for maintaining the performance and lifespan of your computer. In this article, we learned about different methods to check the CPU fan speed. By accessing the BIOS settings, using third-party software, or utilizing the built-in Windows Task Manager, you can easily monitor the RPM (rotations per minute) of your CPU fan.

Knowing the fan speed helps you ensure that your CPU stays cool and doesn't overheat, which can lead to computer crashes and hardware damage. Regularly checking the fan speed allows you to detect any issues or malfunctions early and take appropriate action, such as cleaning the fan or replacing it if necessary.


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