How To Fix CPU Fan Error In BIOS [10 Easy Solutions]

When you turn on your computer, does it say “CPU fan error?” You do not need to worry because it is a common error message while installing Windows on a desktop computer or laptop. After a computer has shut down due to overheating, the alert is frequently triggered. When the fan (or fans) is unable to adequately cool the hardware, this can happen.

CPU Fan Error

Despite being inconvenient, the CPU problem notice and forced shutdown show that the computer’s protections are in place. Many hardware components may irreversibly damage if the fans do not operate properly and the computer overheats. There are several methods for determining the reason for overheating and the error messages that follow and correcting them. Let’s have a look at the CPU fan error in detail.

How The CPU Fan Error Appears

Computer CPU Fan failures do not necessarily indicate a faulty or damaged computer fan or other computer hardware problems. Do not be alarmed; instead, continue reading this article to learn more about the causes and remedies to these CPU fan fault issues in this D Tech Roof article. The CPU fan issue most frequently occurs during a Windows PC’s boot-up or startup phase; it does not occur during normal Windows usage. One of the following is a typical error notice text:

  • “CPU Fan Failed!” is the error message.
  • “CPU Fan Error” is an error message that appears when the CPU fan turns on.

Reasons For CPU Fan Error

  • Physical damage to the fan
  • Improper settings
  • External circumstances

These things can cause the computer to overheat and force the fan to operate at unusually high speeds are the most common causes of a CPU fan error on startup. CPU fan failures can also cause by dust or other things blocking the device’s air vents.

How To Fix CPU Fan Error

So we have gone through the causes of this error. Now we are ready to move forward towards solutions. Because both hardware and software issues can cause CPU fan failures, there are a variety of solutions available, including checking particular settings and the internal CPU fan. Avoid overheating and error warnings by following these guidelines. 

Solution 1: Examining the Fan Wiring

The first step is to inspect the fan wiring. The power supply’s motherboard is linked to the CPU fan. The fan will not turn on if the wire is slack. You will need to fix this to make sure it is secure and linked. Kindly examine all of the fan connections to ensure that they are in good working order.

Solution 2: Change The Location Of Your Computer

If you have set your computer in a spot where it gets a lot of direct sunlight, you should transfer it to a well-ventilated area where it won’t become too hot. Because the CPU is usually positioned under the table, this should not be a problem.

However, when the CPU is stuck in a small space with no adequate ventilation, the CPU fan has a hard time cooling the CPU, which often results in overheating, which is bad for your PC’s health and one of the reasons why the error message appears. Even if the fan is working hard, leaving your computer in a hot or sunny place may cause it to overheat and then shut down. During the day, you have to try relocating your computer to a cooler area or ensuring it is never in direct sunlight during the day.

Solution 3: Change The CPU Fan Settings In BIOS

If the fan fails, the screen may display the message “CPU fan error” when you turn it on.

  • To fix this, you have to press F2 or F12 during boot time to access the motherboard BIOS.
  • After that, you have to press F7 or go to the bottom right corner of the boot menu and select advanced mode.
  • Then, you have to select Monitor from the drop-down menu on the following page.
  • And then, you have to Change “N/A” to “Ignore” in the CPU fan speed section.
  • In the end, you have to exit by using the F10 key, saving your work by clicking OK.
  • Kindly restart your computer to see if the error resolves.

Solution 4: Make Sure That The CPU Fan Working At The Correct Speed

You have to properly shut down your computer, and then you have to open the computer host to see if the CPU fan is spinning at the correct speed. If it is running too slowly for you, you should investigate more to see what you can improve.


  • Before turning off your computer, you must back up essential computer data to an external hard drive or flash drive.
  • To avoid corrupted hard disc file loss, you have to disconnect the linked USB drive, SD memory card, and USB hard drive before turning off your computer.

Solution 5: Cleaning The Air Vents

The most typical cause of this CPU fan issue is dust, which is sometimes the most basic explanation for the most serious problems that give us a headache. When the user does not clean the CPU at regular intervals, dust accumulates on the internal components of the CPU.

Dust jams the fan’s motors, making it difficult to spin, causing the CPU to overheat again. As a result, ensure that your CPU is well-maintained and that the fan is nearly dust-free. Remove the brush from your vacuum cleaner and use it at full power to clean the vents. Alternatively, it would be best if you blew the dust away using an airgun or bottled air.

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Solution 6: Stop Overclocking Your Computer

Overclocking is not always a smart idea since your PC won’t be able to manage it. For example, if you have an outdated PC with insufficient RAM to support the tasks you’ve been doing, pushing your PC to the limit by overclocking the process is not the greatest option. It results in overheating, which is why gaming PCs feature three to four fans. If you do not control the heat appropriately, your PC will continue to overheat. When the CPU fans cannot keep up with the rising system heat, overclocking might occur. As a result, circuits are destroyed, and the system shuts down often. You can replace the CPU fans if they are damaged and need repair if the problem is serious.

Solution 7: Correctly Reconnect Your CPU Fans

On most computer motherboards, there are many CPU fan connection connectors so that several fans of various types may connect simultaneously. Other computer component ports are likewise quite similar to the ports on your CPU fans.

As a result, some users may inadvertently install their CPU fans incorrectly. Do not be concerned, though, if you have connected your fans improperly. To take risks, remove them and try connecting them to other ports there.

Solution 8: Examine The Position Of Your CPU Fan

 If you’re going to install the CPU fan manually, be sure it is in the right place. The CPU header on the motherboard should be linked to this.

The fan will run when the computer is switched on if it is attached somewhere else, but it won’t be cooling the CPU effectively, which is what it is supposed to do.

Solution 9: Consider Using A Different CPU Fan Header

Try plugging the fan into a new slot if your system has numerous CPU fan headers. The CPU fan problem will occasionally resolve by doing so.

Please note that the CPU header is almost always labelled “CPU Fan,” but even if it is not, the three holes for the fan’s three-pronged connection make it easy to detect.

Solution 10: Remove The CPU Fan And Replace It

If none of the previous methods work, it is possible that your fan is broken and has to be replaced. The fan may cover under warranty on your computer. If you bought the fan separately, it could come with a warranty that you can utilize to receive a free or reduced replacement part.


Please keep the cooling fans on the CPU and other components in good working order. Cleaning them every six months is suggested to help them last longer. There are a few CPU problems to be aware of, so keep an eye on your computer at all times. Hopefully, you will discover a solution to your computer problem in any of the above fixes mentioned in our article. If the current area is dusty, you can transfer your computer to another one.

We are hoping that our article will help you in resolving the CPU fan error.

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