How To Fix SpeedFan Not Detecting Fans on Windows 11/10 PC

Solve most common SpeedFan utility problem in Windows 10 and 7.

If you’ve ever found yourself frustrated with SpeedFan not detecting your system fans, you’re not alone. Whether it’s the AFOX motherboard with a noisy CPU fan, Be Quiet pure wings 2 PWM fans causing a blank display, or a Gigabyte GA-Z170-Gaming-K3 motherboard perplexing user Giancarlo456, issues with SpeedFan are widespread and multifaceted

In this post, we’ve discussed simple remedies for SpeedFan not recognizing fans issues. So, if you can’t see the fans or the CPU temperature, modify the fan speed, and this post will be quite helpful.

Why SpeedFan Doesn’t Detect Fans?

In the quest for quieter and more efficient cooling, users often encounter difficulties with SpeedFan failing to detect their fans. Outdated software, compatibility issues with specific motherboards, and limitations within the BIOS contribute to this common problem.

Read Also: Fixed: iCUE Not Detecting Fans or any Devices

How To Fix SpeedFan Not Detecting Fans on the Laptop and PC

If you download SpeedFan and notice it’s not finding your CPU fan, try updating SpeedFan or your computer’s BIOS software. If you’ve already updated them, check if your motherboard works with this tool.

Here are some easy fixes for the SpeedFan not detecting fans problem:

1. Configure SpeedFan

If SpeedFan isn’t identifying your computer’s fans and you’ve tried increasing the fan speed without results, try the troubleshooting methods below. However, before going, make sure that SpeedFan is compatible with your motherboard.

  1. Open SpeedFan and choose the Configuration option.
  2. Navigate to the Advanced tab.
  3. Click on the chip in this tab to reveal its location.
  4. Select your motherboard from the options offered. This will disclose the motherboard details.
  5. Now, pick PWM 1 mode, click “Set To” in the bottom right corner, and select “Software Control.”
  6. Repeat the method for PWM 2 and PWM 3 modes.
  7. Click the OK button to save your changes.

2. Update SpeedFan & BIOS

If SpeedFan isn’t recognizing your fans, whether they’re CPU or case fans, try these steps to troubleshoot the problem.

  • Ensure the Software Updates:
    • Make sure you have the most recent version of SpeedFan installed. Check for updates and install the most recent version, if available.
  • Check BIOS Settings:
    • Enter your computer’s BIOS software.
    • Look for the “Fan control use temperature input” option. If it’s not present, consider using alternative BIOS software.
  • Update BIOS:
    • Update your BIOS program to the most recent version. Check your motherboard manufacturer’s website for the most recent BIOS upgrades.
  • Confirm Compatibility:
    • Check that your motherboard is compatible with the most recent software upgrades, including SpeedFan and BIOS.
  • Adjust BIOS Settings:
    • Open your BIOS system.
    • Locate and bypass CPU fans in the settings.
    • Go to the Power tab.
    • Access the ‘ACPI‘ suspend type option.
    • Change settings from S3 to S1.
    • Save the edited settings as Custom default settings.
    • Press F10 to exit the BIOS system.

3. Consider Motherboard Limitations

Recognize that some motherboards, such as the Gigabyte GA-Z170-Gaming-K3, may have inherent limits in altering fan speeds.

Check to see whether the motherboard is labeled as capable of altering fan speeds.

4. Disable Fast Boot

As suggested, experiment with disabling fast boot to observe any changes in fan detection.

5. Download Alternative Software

Consider alternative fan control software like FanControl. Test whether other software can detect and control the fans effectively.

How To Fix SpeedFan not Changing Fan Speed

Simply installing SpeedFan and pressing the UP arrow will not raise your PC’s fan speed. That requires you to setup your PC.

  • Simply click the Configuration button, then select the Advanced tab.
  • Now, choose your motherboard chip from the drop-down selection.
  • Here, you should see PWM 1 mode, PWM 2 mode, and PWM 3 mode.
  • Click on any of them and select Software controlled.
  • Tick the Remember it box and hit OK.
  • Exit system configuration tool
  • Now try to change the fan speed using the Speedfan by pressing the UP or DOWN arrows

Read Also: What Should Be the Ideal CPU Fan Speed While Playing Games?

How To Fix SpeedFan not Detecting CPU Temps

There are motherboards that don’t have temp sensors so it will be difficult for SpeedFan to get info on CPU temps without these sensors.

However, if your motherboard is compatible and the CPU temperature is still not seen, perform these steps:

  • Open Speedfan on a Windows 10 PC
  • Go to Charts and select Temperature from the drop-down menu.
  • Make sure all the checkboxes are checked within the charts tab.
  • Now go back to the Read tab and you will see core temps.

Bonus Tips & Tricks To Fix Simple Solution for SpeedFan, not Working

If the above fixes don’t work for you then try to uninstall SpeedFan and then reinstall it. Also, make sure that your BIOS is fully up to date. Plus you need to check your motherboard compatibility with SpeedFan software.

If all go green then you should be able to solve any problem that you may face with SpeedFan.

However, it’s not the end of the world, you can always choose the best alternate CPU temperature monitor if you want to check your PC temperature.

This is how we fixed the SpeedFan not Working problems on Windows 10 and 7. If you have any thoughts then post a comment.

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