How to Stop You PC Power Supply Fan From  Making Noise

The power supply fan is one of the most crucial components of your PC. The function of the fan is to keep the computer cool. However, the power supply may work effectively but the fan can run at high speed and make your entire office setup or your room noisy.

Even though the PSU does a great job to keep the computer running smoothly, it is often overlooked and given less priority. That’s why the PSU is to blame for the most of noise in your computer.

Here are some of the best ways to quiet down your power supply fan; clean the PSU fan filter, check and replace worn-out fans, use a current limiting resistor to reduce the voltage, and clean up the vents and fans.

In this article, we talk about this detail and a few other methods to help you silence your power supply fan.

Ways to Prevent Your PC Power Fan From Making Noise

These tips below will help you quiet your PC power fan.

Check the Screws that Hold the Mounting Case Together 

Even though it is rare some PC builders may skimp over the PSU screws or forget o tighten them properly, when your PSU isn’t attached to the case securely, the rotation of the built-in fan may induce extremely loud noise as a result of the vibrations. Mitigating this problem is easy as it only requires you to add on the missing screws and tighten the loose ones.

Also Read:

How to make an industrial fan quiet

Clean the PSU Fan Filter 

In most cases, PCs come along with components such as mesh filters that pull in air for dust management. The fan filters or intake may take in a lot of dust and become clogged over time. The filter usually takes air from the bottom of the case and in no time dust easily gets accumulated in it. The clogged fan filter or intake can cause the fan to run rapidly and become noisier.

To remedy this problem you need to clean the PSU fan filter often and also stop putting the rear of the case at close range to the wall or placing it in any way that might block the exhaust mesh. Positioning the back case panel close to a wall can result in heat buildup, leading to the fan becoming noisier 

Avoid Putting Your PC on Thick Carpets

This word of advice isn’t only limited to laptop users, but also applies to desktop computer users as well. If you’re using thick carpets then it’s better to place your PC case on the desk or use a trolley to raise it above the ground. The thick carpets can easily block off the PSU fan intake at the bottom hence causing it to make noise. 

Clean Up the Vents and Fans

Sometimes a dusty computer fan might be the cause of the noise in your computer. The buildup of dust on the PSU fan blades can cause the components to break down. 

For the sufficient cooling of the computer’s internal parts by the PSU fan without overstressing them, the PSU fan regularly removes dust from the fans and vents.

To solve this issue you need to clear out the dust accumulated on the fan blades. 

Before you begin you need to turn off your machine and disconnect all the cables, especially the power cable.

Use a compressed air duster to spray around your computer vents at an angle. Then use a microfiber cloth to rub the fan and put the computer back into its housing. In case you want to clean the power supply, don’t open it but clean it thoroughly. 

Als o checks out the thermal paste on the CPU and other parts of the computer that contains the paste. The thermal paste facilitates the transfer of heat to heatsinks and can wear out over time making it ineffective. 

Once you are done with all this ensure to connect all the wires back and put the fan inside the motherboard correctly, otherwise those components may not function. 

Checkout If the Fan is Worn-Out 

If you have been hearing buzzing or harsh noise without any sign of blockage then the fan bearing may be worn out. Normally fans with sleeve-, bearing are less expensive and are often used in older PSUs.

This type of bearing is noted for making irritating when they get to the end of their lifespan. To remedy this problem you need to oil or replace the sleeves bearing fans completely. There is no way you can replace the fans without dismantling the power supply. We advise you to get a professional to replace or oil the fans to avoid causing more damage. 

Inspect to See Whether Your PSU Fan  is Clear 

If the computer is making a loud and harsh noise the first thing you might want to do is to open the case and examine whether the PSU fan blades are free from blockage or any other obstructions. 

Regardless of the protective grills, errant cables may still break into the fan blades. Simply fixing the sticking-out cable into the PSU will help solve the issue.

However when the source of the obstruction is internal then more complicated than you think. when this happens don’t try to disassemble the power source and fix the problem. Call an expert to come to assist you. Even though the power might be the capacitor can be huge electric current can kill you if care is not taken. 

Use a Current-Limiting Resistor

Enough power supply is very essential to processing parts like the CPU and the GPU.limiting power supply to these components will also decrease the overall power consumed by the PSU and also cut down the total heat dispersed by the PSU.

To install the resistor use a  soldering iron to solder it in line with the positive connection on your fan and apply a piece of shrink wrap up to insulate the connection against the rest of the circuit.

The power reduction will help your computer and power supply to operate moderately and effectively hence making it quieter.

Use Foam to Insulate the Case

One of the easiest ways to cut down the noise from your power supply fan is to place a piece of foam between the fan and the case. The foam will prevent the vibrations of the fans from transferring to the case.

Slack for a Few Hours 

If you are using your computer for long hours and realize it begins to make loud noises. Then it means that your PC is overloaded and overheating. Then is time to let your PC rest. And this will solve the problem.

Lubricate the Power Supply Fan 

The reason for the noise might be that friction between the bearing is making it difficult to rotate hence causing the noise.

To do this you need to remove the sticker on the back and the rubber cap from the bearing. Once this is done spray WD40 lubricant on it.  Spin the fan for the lubricant to spread across. 

Inspect to See If the Powers are Angled Properly 

This is a common mistake that many unskilled PC builders and expert technology companies make. In most instances, PC desktop cases always target putting the power supplies at the defined configuration for optimum cooling by giving it the right air intake and exhaust o if your PSU is wrong lying mounted you may risk hindering the all-important cooling airflow. The loud noise from your power supply may due to an installation problem. 

Operate Your PSU in the Sweet Spot

The PSU must convert the alternating current from the wall outlet into a direct current which is needed by the PC components.

The AC to DC conversion has some wastefulness which is usually converted to heat. Computer power supplies are most effective when it is needed to produce between 40 and 60 percent of the total output rate. 

When the PSU is forced to supply power outside of the sweet zone it becomes ineffective. For instance, a PSU with a 1000 watts rate will be inadequate when it supplies only 950 watts, due to this the heat is dispersed through power delivery parts because of the inefficiencies. These inefficiencies cause the cooling fans to work harder hence creating noise.

With this issue, e you need to get t professional to help you remedy the problem. 

Conclusion 

Having a noisy supply isn’t only annoying but is also worrisome as the noise indicates other underlying problems with your PC. However, some of the issues can be if you regularly clean the computer so that it can get an adequate area to breathe. Fortunately, the above article will help you address the noise problems in your computer. 

Josephine

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