The power supply cooler makes a lot of noise. Power supply noisy

If the computer's power supply is noisy, contact the Expert company. The problem can be quite serious and it’s definitely not worth leaving it for later! Highly qualified specialists of our service center will solve the problem in the shortest possible time and with a guarantee!

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We can say that the power supply is the heart of your computer. Like the heart, which pumps blood through the circulatory system of the entire body, the power supply ensures that current flows through all components. There will be no power - the computer will stop working. There will be failures - the computer may burn out.

If the computer's power supply is noisy, it is urgent to sort out the problem. Noise, hum, rattle or clicks from the power supply are a sure sign that it is either on edge or already not working properly. It threatens in best case, sudden shutdown of your computer and further refusal to turn on after. At worst, the computer may catch fire.

How to figure out why the power supply is buzzing, and what to do when the computer's power supply is noisy?

Let's see what could be causing it.

Reasons why the power supply buzzes

How old is the power supply inside your PC? Worn out is one of the most common reasons why a computer power supply is noisy. It is recommended to change it every 2, in the worst case, 3 years, because during this period its resource is greatly consumed, the internal parts wear out, and do not forget that there is a cooler inside, which also needs care.

By the way, about the cooler. The power supply gets very hot, so they are all equipped with a fairly powerful cooler. If more expensive models install good silent coolers with a long service life inside, then simple models contain coolers inside, which after a while make the power supply buzz.

Sometimes the cooler starts buzzing due to dust, which it sucks into the PSU during cooling. You can take it apart yourself, clean everything inside and lubricate the cooler, but there is a high probability of damaging something inside, and after turning it on, you may be in for a surprise in the form of a short circuit in the power supply.

IMPORTANT! It is very dangerous to ignore the noise of the cooler from the power supply, at any moment the cooler may fail, the PSU will heat up and may lead to a short circuit or fire system block.

The problem is that not all power supplies are normally disassembled. Some are hidden by tricky systems, some require special tools that can only be found in service centers, and sometimes they are even soldered, and getting to the inside for simple cleaning without the help of specialists is almost impossible.

Another noise issue from the power supply is clicks. They can appear if wires or other internal components are interrupted somewhere inside, overheat and melt or "short" for other reasons.

Power supply buzzing when you turn on the computer, then the nasty hum disappears and for some time the system unit works quietly. After a while, the unpleasant sound from the power supply is repeated.
I myself am far from being a kid and I am familiar with a screwdriver, I work in a car service, I just didn’t have to deal with computers before. I think, let me disassemble the system unit, remove the power supply, disassemble it, most likely the fan is buzzing. I removed the side cover of the system unit, unscrewed the screws that secure the power supply to the case, and what do you think, I can’t remove the power supply from the system unit, the long frame that runs along the case interferes. I didn't think my renovation would end so quickly! Just wondering how they put it in there? Vadim.

Power supply buzzing

Hello dear readers! Buzzing in the power supply fan bearing, grease has simply dried up in it. What needs to be done, I will show you, and you already decide whether you can handle this matter or not. A friend of mine recently turned to me with the same request, he often plays some kind of shooter game for the weekend, but it's bad luck, on his computer, from time to time, the power supply began to buzz, imagine, everyone at home is sleeping and suddenly it is heard this annoying sound. Naturally, my friend began to get regularly from his wife and he faced a choice, either to stop regular computer fighting or replace the power supply. Without computer game my buddy lasted a week, then ran into computer store for a new power supply. Arriving at the store, he was very surprised at the prices and called me.

Digression: Friends, we recently released a new website on our website. interesting article which may be useful to you if you decide to buy new block power supply ""

To which I offered him what I will now show you and tell you. Friends, you just need to lubricate this bearing and that's it, but of course you won't break the whole computer.

Note: As our reader Andrei correctly noted, not only the power supply fan can hum, but also the additional cooling fan, which is installed in the rear wall of the system unit. This fan can be changed or, as shown later in the article, lubricate the bearing on it. The red arrow shows the location of the power supply, the blue arrow shows the location of the system unit cooling fan. You can determine what exactly is buzzing by ear. Or disconnect the case fan from the motherboard and turn on the computer, if it does not stop buzzing, then the power supply is buzzing.

We do everything on a turned off computer. First of all, you need to remove the power supply. We take our system unit and unscrew the side cover from the side of the connectors on the motherboard. The power supply, depending on the case, can be at the top or bottom. In our case, at the top.

Disconnect the 20/24 pin power supply connector from the motherboard, and also disconnect all devices from the power supply.

We unscrew the screws securing the power supply, usually there are four of them.

Then carefully remove the power supply from the system unit. In my case, this is quite difficult to do, what to do, such a hull design. Take your time and don't break anything.

Now carefully disassemble the power supply itself.
If you are doing this for the first time, first do it without the presence of your wife, as there will be a lot of dust and record all your actions, but rather take pictures so that you can put everything back together without any problems. Let's disassemble the power supply. We turn off the screws of the power supply cover, usually there are four of them, but in our case there are six, they are small, do not lose them.

The power supply cooler is attached to the block cover with four screws, we unscrew them last.

Now you need to very carefully clean the inside of the power supply. Using a fluffy brush and very carefully sweep away all the dust from the parts of the power supply, then remove the dust with a vacuum cleaner.

Please note that the power supply cooling fan is removable, if you do not want to mess with the bearing, you can remove it, then buy the exact same one and replace it.

The power supply fan may not be removable, often the fan wires are soldered into the power supply board, then you need to carefully cut the wires closer to the cooler and strip them by 2 centimeters, then take a new cooler and also strip the wires on it and connect the new cooler and the block by twisting nutrition.
Or you can very simply lubricate the cooler bearing. This can be done without even removing the fan from the unit. We clean the fan of the power supply from dust,

Then carefully peel off the branded sticker from the cooler and remove the rubber bearing cap.

It is not at all necessary to remove the lock washer and remove the remnants of the old grease, which in most cases has dried up. Just put a few drops of spindle or good machine oil inside, wait a few minutes for the oil to reach the bearing.

We put the rubber plug in place and stick the branded sticker in place.

If you disconnected the fan from the unit board, connect it.

We screw it to the cover of the power supply and put the cover,

She must take her place.

We install the power supply in the system unit of our computer. I hope your power supply will not buzz for a long time.

One of the very unpleasant problems that computer owners face is the noise that appears during the operation of a personal device. Everything seemed to be fine and suddenly, something buzzed or rattled. This fact indicates that it is necessary to intervene, and immediately. Modern computer includes a whole set of mechanical devices.
The computer can be noisy for various reasons.

They are the ones who cause the noise. These include the following elements:

• All coolers (fans)
• HDD
• optical drive

The most common cause of noise is clogging of coolers with dust. Cleaning is a mandatory preventive maintenance of the device, which can help to avoid more serious malfunctions. You need to clean the computer from dust regularly, without waiting for the cooler to buzz. Cooler in the computer, this is the most simple problem which may cause noise.

If we consider all the causes of excessive noise in ascending order, the table will look like this:

1. Dust in the cooler in the power supply
2. Dust in the cooler CPU
3. Video card fan
4. Noisy HDD
5. Extraneous sound during operation of the optical drive

Eliminate noise in the computer

To know what to do when your computer is noisy, you must first identify the source of the noise. When the fan in the computer power supply is noisy, eliminating this cause can be considered the least time-consuming process. The fan is located on the back of the device and provides cooling to the motherboard, especially the power supply. It is enough to remove the side wall and access to this cooler will open. You can easily disconnect the connector and, if necessary, remove the device. Dust removal can be done with a brush or vacuum cleaner. You can turn the impeller by hand to determine the softness of rotation. After cleaning, the fan can be replaced and the power turned on. If it was not possible to get rid of excessive noise, lubrication can help. To do this, the fan must be removed again, remove the sticker on the impeller and drop a little silicone oil into the hole. If this does not help, then the cooler will have to be changed, since the bearings wear out during operation.

More complex problems will have to be solved if the processor. This fan, of course, also needs to be cleaned of dust, but its control is more complicated. The speed, its, directly depends on the temperature of the central processor, and this parameter depends on the quality of the thermal paste. Drying out of this paste during computer operation leads to the noise of the cooling device. To reduce computer noise software tools, by adjusting the speed of the fans, you can use the free utility SpeedFun. After installing it, you need to select the Russian language in the "Configuration" window. A program window will open with a clear interface, where the Speed ​​01, 02, 03, 04 windows indicate the speed of all coolers in percent. It can be changed, achieving the optimal ratio of speed and noise.

Using the SpeedFun program, you can reduce the speed of rotation of the cooler

This utility has many useful features, including the temperature readings of all elements of the device.

Any repair actions with the computer can only be carried out with the power turned off.

To finish with the fans, it remains to consider cleaning the video card cooler. To do this, you need to remove the video card in the computer. This must be done when complete shutdown nutrition. The video card has its own processor, on which there is a cooling device. You must first clean the video card on the computer and then carefully remove the fan. It can be attached to the radiator with screws or in some other way. Useful advice: if it is clear that it will not be possible to remove the cooler on your own, it is best to contact the service department. If the cooler was removed without problems, you need to remove the plastic film on the back side, under which there will be a rubber cork. The cork should be carefully removed and 2-3 drops of silicone grease should be dropped into the hole. If there is more of it, then the excess will still flow out.

Hard disk and optical drive

If everything is quite simple with dust, then it will be more difficult to deal with other sources of noise, and with some defects, their elimination is almost impossible. Many unpleasant sounds are associated with work or disturbances in work. hard drive. If the hard drive is cracking, this, in the worst case, may indicate a serious breakdown that will require replacement of the hard drive. But it is not all that bad. First of all, drive cracking may occur if the free space on disk. Because of this, the heads quickly move across sectors, putting together a fragmented file, especially if it big size. In this case, it is necessary to defragment the disk using operating system.

using WinAAM programs you can control the noise level of the hard drive

You can change the call time using small program. This will significantly reduce noise, but at the same time speed. Each hard drive can manage its own noise level with own customization Automatic Acoustik Management, he just needs a little help. To do this, download the WinAAM program, which is absolutely free. After loading it, the initial window appears. Here you just need to click "Continue" and do not touch the security settings.

After that, in the next window, you need to select the “Quiet” value, then, in order to check the difference in noise characteristics, you need to restart the utility and click on the “Loud” button for comparison.

Quiet mode in WinAAM
Loud WinAAM Mode

The difference, by ear, will be very noticeable. Very often, the reason that the system unit is buzzing is the vibration from the hard drive. A quiet hard drive is good, but quite difficult. The disk case itself is attached to a metal rack inside the system unit with four screws, but sometimes, with poor assembly, only two are installed, so the vibration will be strong and many elements will resonate. This small defect is revealed upon close inspection. You can reduce computer noise by placing small rubber washers under the hard drive mounting screws, which can be cut from any shock-absorbing material. If none of these measures help, then the disk drive should be replaced.

When it makes noise, we will always determine. Very often this source is an optical drive. This is a rather delicate device that does not like low-quality discs from unknown manufacturers. As soon as you buy some pirated product recorded on a cheap disc, the drive will not make any noise, but even roar, but as soon as you put in a branded disc, it disappears. If the device, after a long period of operation, began to make noise, then this means it needs to be changed. The fact is that such devices are almost never taken for repair, since it is cheaper to install a new drive than to repair an old one.

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Additional Noise Sources

Quite often there is such a phenomenon - all possible sources of noise are checked, but the computer is buzzing.
This can only be related to the phenomenon of mechanical resonance. Motherboard fastened with screws to racks inside the system unit and very often from the operation of computer mechanical devices, screws
weaken. In addition, inside the device, depending on specific model There are also various fasteners. It is necessary, if possible, to disassemble the computer and tighten all the screws. If this does not help, it remains, in the form last resort just return the computer to the point of sale.

Sometimes there is no noise, but the sound wheezes.

First you need to make sure that the speakers are connected correctly. Further, all operations are associated with drivers. In Realtek HD, you can change the sampling rate, then reinstall the drivers. Each operating system has its own settings that are responsible for the sound quality. The external one may fail. sound card. If nothing helps, you will have to reinstall the OS.

To sum up, the following can be noted. It is necessary, without waiting for problems to arise, to clean the computer, lubricate the fan in the computer, do not use pirated disks and try to avoid visiting problem sites where you can get a whole set malware, which can spoil the computer so much that it will take a long time to get out of such a situation. Some viruses intercept control of the hard disk, so you will have to change it.

Now you know what to do if your computer is making a lot of noise.

Noise from the system unit is always a bad sign of a computer. It should be got rid of not only because it irritates our hearing, but it can also affect the performance of the computer, as well as the wear and tear of parts. Today from this article you will learn why the computer is making noise (in particular, its system unit) and what needs to be done to remove excessive noise by returning the computer to its previous sound level during operation.

7 reasons why the system unit of the computer is noisy

What to do to get rid of noise from the system unit?

If you do not see problems in the components, but simply want not to hear the operation of the computer, then you can do just a few things that will help you almost completely absorb the noise.

1. Change cooling system. To get rid of noise once and for all, only a cardinal change in cooling will help, namely replacing it with a liquid one. Thus, not fans will cool computer components, but liquids, using pumps, heat sinks, radiators, hoses, sensors, and similar devices. The difference will be quite noticeable, but such a system costs about 500 (and sometimes more) US dollars. Too expensive pleasure!


2. Change the box of the system unit. Sometimes it is enough to change the box of the system unit to reduce the noise level. For example, you can choose a box with noise and vibration isolation (or even make one yourself). Think also about the legs on which the system unit stands, they should be soft and absorb vibrations well, i.e. rubberized.


3. Change coolers. The best way to reduce noise (low cost and noticeable by ear) is to replace all old coolers with new, more modern and silent ones. However, here it will not be possible to waste time on trifles, otherwise you will not feel the effect as such! Some can even be configured, choosing either a quiet rotation mode, or a louder, but more powerful one (it is needed for those cases when the PC will be used for a long time without interruptions).


4. Spend regular. If you constantly read our magazine, then in almost every article we mention cleaning the computer, since it is really very important and useful for the system unit, so do not miss this moment from our recommendations. After all, regular reading will save you from unnecessary problems associated with noise coming from the system unit.

Now you know about all the causes of noise from the system unit, as well as how to get rid of it.