Fix Noisy Computer Fan – Why Is My Computer Fan So Loud

Wondering why my computer fan is so loud but not hot, follow these steps to fix and reduce fan noise.

When a loud noise is coming from your computer that seems to become louder as your computer gets warmerthen it’s not something to ignore. Because the noisy computer fan is the first sign of overheating and telling you that a fan inside your computer is not working properly.

If you do not know why is my computer fan so loud or your laptop fan making noise constantly, then read this post to fix the loud computer or laptop fan issue. By doing that you can prevent your computer from being frying.

When the computer performs tasks it generates heat due to electrical resistance and that’s where fan play their part. They dissipate heat maintain normal PC temperature. This is why computer experts recommend regularly Checking the CPU temperature of your PC.

If the fans are loose, too small to cool down the PC then you will face loud computer fan noise. Other factors include rusty fan bearing, dust, dirt, etc.

Fix – Why is my computer fan so loud?

If you are facing a loud computer or laptop fan problem in your Windows 10 or 7 then read this article. You will get the solution to the below-mentioned queries.

  • PC fan making a rattling, grinding, or buzzing noise
  • My computer fan is loud but not hot
  • Why is my computer fan so loud all of a sudden
  • Computer making a loud whirring noise
  • Computer fan loud on startup
  • Computer making a loud noise when turned on

Step 1 – Check what software is running on your PC

CPU intensive tasks such as games, video editing, etc push your PC fans to their limits causing loud computer fans. Because these tasks tend to generate heat so CPU fan spins at full speed to cool itself down.

But if you aren’t messing with these apps and still your processor or memory showing high usage. Then you should check which process is eating up your CPU usage or memory.

fix Noisy Computer Fan problem

In Windows OS, Windows Task Manager is the easiest way to check memory consumption. Press Ctrl+Shift+Esc and windows will pop up if you are a mac user open Activity Monitor it also serves the same purpose.

Now check in the CPU usage column to see which app is consuming more process power.

If everything seems normal and the load percentage is between 10% to 20%. It means that your computer CPU is not overusing itself, rather it’s the noisy computer fans themselves.

Before you make sure that it’s the noisy computer fan that causing the problem, also check your GPU fan.

What if it’s the GPU temperature that’s pushing the PC fan to spin like mad. In that situation check if there’s the latest GPU driver update.

Step 2 – Give more airflow to your PC or laptop

It’s a proven fact that PC performs well when you give more room for air to circulate your desktop computer or laptop. On the other hand, insufficient airflow will cause your PC fans to run at full speed.

The laptop user should focus more on improving airflow as they have their air intake vents at the bottom side. So don’t set it on your lap, pillow, or uneven surface. If you do it your laptop will start overheating and you will hear a loud laptop fan noise coming out of it.

Although, there are methods to fix the problem of laptop overheating. For now, you can place a little wooden box or stick beneath your laptop allowing more fresh air.

how to avoid laptop overheating

You can also buy a laptop cooling pad which is not very costly. (Read our guide on the best laptop cooling pads in 2021)

For desktop PC make sure that there’s ample vacant space around its case. On desktop adequate airflow is required in and around it.

To reduce noisy computer fan issues you need to place your PC outside of the cupboard if it’s inside it. Especially when the summer season arrives, do not keep your laptop or desktop computer in a closed room. If kept in a closed room it will cause a rise in PC temperature.

If your laptop fan constantly running then it might be a wire loose issue. The processor fan is controlled by the 4th wire where it’s yellow in most 4 pin fans unlike the 3 pin chassis fans, if the yellow one gets disconnected, it will cause the laptop fan to always be on at its full 100% rpm.

Step 4 – Download PC fan speed control software

If computer fans are running constantly then you can use PC fan control software to control their speed manually. One way is to look into the hardware monitoring section by accessing BIOS settings. But tweaking BIOS may result in system failure if you don’t know it well.

Best PC fan control software

So the best way is to download the best PC fan speed controller software on your desktop or laptop PC. But before that, you should check your motherboard model capability. Whether it supports all PC fans or is only connected with the motherboard. Also, check if it supports 4-pin PWM adapters or 3-pin fan models.

If your fans are connected to the motherboard then we recommend that you should download SpeedFan to monitor the CPU fan and Case fan. While MSI Afterburner is the best program to control the GPU fan’s speed.

Step 5 – Install the PC fan controller hub

If the above software doesn’t work and you can’t control PC fans, then it is due to the fans which are directly plugged into the power supply.

In this case, you should purchase fan controller hubs (hardware). Noctua and NZXT make some of the best PC fan controller hubs for all kinds of PC.

best NZXT fan controller for PC

These hubs have many bells and whistles like knobs, touch display, temperature sensors, and many more to give you full control. Once you get the right speed dialed in, your gaming sessions will hopefully be a bit more peaceful.

Step 6 – Regularly Clean Your Computer Fan

If the above two steps are not helping you out in fixing the noisy computer fan. Then you need to open up your computer or laptop and start cleaning.

Remember, dust is the ark enemy of these machines, it causes overheating issues which may be why you have a noisy computer fan.

We have already explained in our previous post how you can prevent a computer from overheating.

Read it and apply those methods to clean the dust out of your computer.

How to clean dusty computer

All you need is a can of compressed air and isopropyl alcohol and a cool mind. Because this process takes time.

You can also use some grease or lubricant on your PC fans, it will remove the friction and loud computer fan sound.

It will help your noisy computer fan to run faster and quieter. Before you start fixing your PC fans read some guides on it.

Clean CPU fan, graphics card fan, and any other component having a fan on it. Clean the power supply fan and computer case fan using canned air.

Step 7 – Replace loud computer fan entirely

What if all the above steps don’t yield any result or issue of laptop fan noise not resolving. In that case, you need to remove the CPU fan or any other PC fan that causing noise and replace it with a new fan.

Replace loud computer fan

Because either the PC fan is broken or has stopped working properly, that’s why the above-mentioned steps are not giving you any relief. You can buy the spare fan from nearby computer electronic stores or the internet as well.

If you apply the above-mentioned steps, it will fix the computer fan noise problem. Have any other suggestions for fixing a noisy computer fan then share them with us!

How to Fix Noisy Computer Fan on Windows 10

  1. Run Task manager

    Open task manager to make sure it’s the software that is consuming CPU or memory usage. If processes in task manager are consuming normal CPU, still fan run at full speed. then,

  2. Give Sufficient Airflow

    Open up the case to provide more room for the PC to breathe. The laptop user use a flat surface for better air inflow

  3. Download PC Fan Speed Control Software

    Download SpeedFan or MSI Afterburner to manually control PC fan speed. Use these programs only if PC fans are connected with the motherboard.

  4. Purchase Fan Controller Hub

    Where PC fans are directly connected with the power supply, then the above-mentioned programs will not work, So buy fan controller hardware

  5. Regularly Clean Your Computer or Laptop

    Over time dust, dirt, or your pet hair will block PC air vents. Use compressed air to thoroughly clean your PC.

  6. Replace Faulty Fan

    Where the above solutions don’t work it may be due to old PC fans that have rusty ball bearings, damaged screws, or fan curves. It’s best to purchase a new 4-pin PWM PC fan from an online store.

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