Why Is My Computer Fan So Loud All Of A Sudden?

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The fan is perhaps the loudest component within your computer and this even more so when the computer spins faster due to a need to dissipate more heat. However, if you ever notice a sudden increase in the sound been made by your computer, it may well be a result of changes in software of something affecting the computer hardware. Therefore, why is my computer fan so loud all of a sudden?

Why is my computer fan so loud all of a sudden?

If by loudly, you are referring to an increase in its revolutions per minute, then the major cause may be a faulty heat sensor or heat. You may, therefore, monitor your memory, CPU and disk usage to ascertain if the change in the speed of the fan has to do with any of them. Another thing that could cause this may be restricted airflow, dirty heat sink, and ambient temperatures. However, if there isn’t any real change in the temperature, then it may be as a result of a faulty fan control sensor. Furthermore, it could be a result of bad bearings and it may be ideal that the fan is changed. You may peel off the sticker and get an opening to put a lubricant.

What Could Be The Cause Of This Condition?

If you find that your computer fan is sounding like it is operating at a higher speed majority of the time then there may be two core reasons.

It could be a product of a process running in the background thus causing the computer to become hotter. In this scenario it is only ideal you know how to gain access to your monitor as they usually have one built-in.
The second reason could be that it could be dirty especially in a situation where the computer is exposed to a dirty environment. In such a situation, you may have to open up your computer to clean it.

Here is a breakdown of possible causes of the rather annoying noise from your PC:

The software angle

You may have to deal with a case of system overload when you make changes to your operating system or perhaps installed software that continuously runs in the background. When you put too much pressure on your computer, this leads to a situation where it becomes overheated and leads to more work for the fan. It is therefore imperative that you take note of what you are doing before the fan starts sounding loud.

Blocked vents and dirty fans

The older a computer gets, the more it overheats especially if you have not been regularly cleaning the vents. It may also be as a result of the way and manner you are using the computer. Also, using your computer on your lap or a flat surface may block the air vents thus lowering airflow and causing the fans to spin quicker.

Hard disk failure

There is also the possibility of an impending hard drive failure being the source of the noise and not the fan. For instance, if you notice that the area close to your hard drive appears to make a whirring noise, you may need to get your files backed up. The moment the mechanical component contained within an HDD starts to malfunction, you will certainly get a noisier hard drive. When faced with this situation, the best solution would be to back-up your data even as you get the hard drive replaced.

Tips To Help You Fix The Loud Noise From Your Computer

By now you know that loud and steady noise from your computer could be as a result of a malfunctioning fan. Other reasons could be as a result of the CPU and graphics card. When there is too much heat within a computer, it may cause damage to the computer. Here are some potent steps to take if you want to fix the noise problem of your fan:

Clean the computer’s fans

It may take about 30 minutes for you to properly clean the fans within your computer. This time is usually shorter when dealing with a tablet or laptop; it is, however, more when dealing with a desktop computer. The first step here would be to clean the CPU fan in addition to the graphics card fan and any other fan. In the case of Tablets and laptops, the device may or may not possess a fan for the CPU and other components.

If you are however finding it difficult to figure out which of the panels should be removed to gain access to the fan and CPU, you may have to take a good look at the manual of your computer online. However, in the case of a desktop, chances are quite high that your computer will have both a CPU and GPU fan.

The second step involves you cleaning the power fan and any other fan. In the case of a Tablet or laptop, chances are high that your device only has one fan. In this instance, ensure that you do not blow the dust directly back to your computer as this could further increase the noise being created by the computer.

It is therefore advisable that you blow the air produced by the fan at a certain angle. This will help blow the dust directly from the fan grates. For desktops, they usually have a power supply fan and as such, they may not have outflow and inflow case fans. You should blow the fans the inside and outside till the point where you do not observe any more dust.

If you have however implemented the above steps and the fan does not move, you may have to get a replacement. However, before doing that, ensure to check if the fan is properly plugged to the motherboard for power supply.

What Can I Do To Ensure That My Computer Does Not Get Hot?

Chances are high that there is nothing wrong with your computer, especially if you have cleaned them and put them in perfect working condition. If you, however, notice that they are still making some strange sounds, it may simply be because they are being tasked to do more work than they should.

What this simply means is that your computer is still hot despite the fans running at full speeds. When this happens, it simply means that they can’t cool your hardware down enough to slow them down, this may cause the noise.

For you to keep your computer cool, here are a few potent tips that should help out:

1. Continuous airflow

This is perhaps the easiest and most effective strategy to ensure that your computer does not overheat. In this instance, you only need to give your computer some extra breathing space while also eliminating all obstacles to the flow of air. Also, ensure that nothing is obstructing the sides of the computer.

2. Move your computer

Perhaps the region where your computer is placed may be dirty or hot. In such a situation, the best thing would be to move the computer from such a place. This may mean moving the computer entirely from the room

3. Get a case fan

A case fan is simply a small fan which is attached either to the back or the front of a computer case from within. They are quite helpful in circulating air within the computer and this is the best way to ensure that the vital components of the computer do not get hot. One way to keep your computer constantly cool is by installing two case fans. Usually, case fans are quite easier to install than CPU fans.

4. Get an upgrade of the CPU fan

One thing every expert will tell you is that the CPU is perhaps the most expensive and sensitive component within your computer. In addition to this, it has the highest potential to overheat. Except you have recently gotten a replacement, chances are that the fan in your CPU is one of those that just do enough to keep your CPU working. Several companies sell large CPU fans which are equipped to keep the CPU temperature much lower than the pre-installed fans.

5. Quit overlocking

If you don’t know what overclocking means, it probably implies that you do not do it. Overlocking is one strategy that pushes your computer to the limits. However, the changes effected in this process usually have a telling effect on the temperature of the device. If you are overlocking your computer and not taken the required precaution to ensure that the hardware is cool it is dangerous. You may have to reset it back to factory default settings.

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Final Word

It is very important to state that the overall health and wellbeing of your computer are subject to the way you treat it. When your computer suddenly starts making a loud noise, it simply means something is wrong. In such a situation, you will have to follow the tips and instructions we have outlined in this article.