As soon as I press the button on my computer, the power supply makes a loud buzzing noise.

The noise generated by computers is mainly divided into vibration noise, fan noise, etc. The main components that produce noise are: power supply, CPU fan, graphics card fan, hard disk, optical drive, speaker, etc., vibration noise.

First of all, when it comes to vibration, then you will think of whether the screws of the host are not tightened or used for a long time, and the screws are slowly loosened, yes, it is true. This kind of vibration noise mainly comes from motherboards, optical drives, floppy drives, hard disks, fans, speakers, printers, scanners, computer desks, etc., and these hardware may be caused by loose screws and vibration itself. Of course, it is very easy to eliminate these vibrations, as long as the corresponding screws are tightened, but it can be more troublesome to find these loose screws.

Some readers think that without installing the case cover, it is very convenient to dial in the hardware in the machine, or increase heat dissipation, but this makes the noise directly released, and the radiation can also be directly emitted, so that the health and mood of workers are threatened.

Fan noise. It is impossible for the fan not to make noise during operation, because it has to rub against the space during operation, and the fan with poor quality has unstable speed and unstable rotation direction, not only at any time"Strikes"The danger will also be loud. Therefore, it is recommended that you buy a better quality fan, which not only effectively reduces the noise, but also prevents the fan from sudden"Strikes"Caused by hardware"Shock"。

It is normal for a fan to become more and more noisy after being used for a while. Generally, due to long-term use, some components of the fan are aging, resulting in unstable speed, or dust into the components, so that the noise will be very loud when rotating, so when the computer is used for a period of time, the chassis needs to be cleaned up, so as not to become a paradise of dust, so that our hardware can suffer. After cleaning the dust, remember to add appropriate lubricant to the bearings of the fan to reduce the noise caused by friction between the bearings.

DIY will remove the power supply and dust the fan. But of course, you can also get a new fan :)

The "humming" sound emitted by the power supply, with a low frequency, can be judged to be the noise emitted by the improper operation of the exhaust fan.

1. Verify whether there is a problem with it, you can pat the iron shell a few times, if the noise changes, it is confirmed;

2. If this problem occurs in the new power supply, the quality of the fan is problematic, or the air is too dirty, the dust pollutes the bearing, and the motor vibrates when it rotates. Remove the cleaning bearing, add a drop of sewing machine oil and install the test machine. If the test machine problem remains the same, it is a quality problem;

3. The old power supply that has been used for a long time is mostly due to bearing wear, wear deviation, and the bearing clearance is too large, and after the dust enters, the rotor runs unstable, resulting in large vibration, and the resonance of the chassis, it will naturally be noisy. It is recommended to directly replace the fan with a new one to solve the problem completely;

4. In the power box, the power consumption of electronic devices when working will produce high heat, in order to prevent heat accumulation, exhaust fans are installed in the iron box to cool down. When there is a problem with the fan, the noise is low-frequency noise; When there is a problem with the circuit device, because it works at a frequency of tens of kilohertz, it will emit noise with a higher frequency, such as "squeak, chirp", which is easier to distinguish and judge.

The sound is loud, that is a fan on the power supply, the fan blades tremble and make a loud noise, and the finger flicks at the fan of the chassis shell, and the speed can be changed, and the sound becomes smaller and rotated normally.

Usually this problem is solved by oiling the fan or replacing the fan.

The sound of the computer startup is as noisy as flying an airplane, is there an urge to kick it? Other! A drop of oil will do the trick.

The reason for the loud sound is generally in the cold winter, when the lubricating oil does not melt, so there will be a loud sound when starting the computer, and the comprehensive analysis of the reasons is as follows.

1. The fan bearing lacks lubrication, and the sound will be eliminated within 10 minutes of starting.

2. The fan blades are unbalanced, the fan blades are unbalanced, the blades are loose on the shaft, and the bearings and clearances are too large.

3. Fan blades are defective and asymmetrical.

Power supply fan noise is divided into rotational noise and vibration noise.

Rotational noise is generally caused by a lack of lubrication in the fan bearing, which can be applied to the fan bearing with a few drops of light lubricating oil (e.g. sewing machine oil).

Vibration noise is generally caused by unbalanced fan blades, loose blades on the shaft, and excessive bearing and clearance. If it is a dirt accumulation of individual leaves, it is enough to remove the dirt; If the fan blades are missing, asymmetrical, or the bearing clearance is too large, it is best to replace the power supply fan with a new one.

1, it may be that the fan is loud and cleans up the dust, 2, if it is not the fan, there may be a problem with the filter capacitor

If there is a loud buzzing sound on the computer console, you can try the following methods to solve this situation:

1. Some hardware of the host is caused by poor heat dissipation, in this case, you should open the host yourself to try to see which component is overheating, first prepare some tools to open the host.

2. If it is caused by CPU overheating, you may consider replacing the fan, if it is the sound of the memory card, it may be that there is a problem with the contact card slot, and the dust on the card is too much, and the ash should be brushed off with a brush.

3. If it is a problem with the graphics card, see if the fan of the graphics card is not working, you may need to replace the fan of the graphics card over the graphics card; Clean the dust of the motherboard and its parts with a brush, leather tiger or hair dryer.

Sound, not difficult to solve. Could the buzzing sound be the resonance of the chassis?? To confirm this, it's as simple as laying the case flat and pinching It is best to remove the motherboard and power supply (the hard drive and optical drive do not need to be removed), and then boot the motherboard, so that you know if the case is resonating.

Generally, the sound of the old machine is the sound of the resonance of the chassis!!

Use the elimination method, and it will come out at once.

CPU fan, make sure the sound can do this, unplug the CPU fan to know if it is this sound (remember not to exceed 15 minutes).

For graphics cards, just unplug the graphics card and you'll know.

It is difficult to determine the sound of the power supply, so try to replace the fan with a new fan or change the power supply to judge.

All that's left is the hard drive. Remove the hard drive from the chassis, put it on the ground with a book pad, and you can hear it at once.

The first thing you need to do is figure out whether you're a desktop computer or a laptop. The hum of desktop computers mostly comes from power supply fans, CPU fans, graphics card fans, it is possible that the fan is not installed safely, there may be objects in the front of the fan, or the vent is blocked. Finally, check if there is any resonance.

The pen should be to see if the dust filter is cleaned.

It's time to replace the cooling fan, need lubricating oil, and if it doesn't work, you can take the case to the repair shop.

The lubricating oil of the roller of the power supply fan may be dry, so let's change it to a power supply fan.

Try my simple method, I'm like this, now it's okay, just double-click on the taskbar volume, turn the microphone to mute, hehe, maybe just like me.

When the fan is ringing, when the computer is running, open the case, press and hold the middle of the fan with your finger, if the sound decreases after holding down, it proves that the fan is a problem.

My computer buzzes as soon as I turn it on louder, how do I tune it?

1.It's best to adjust the volume of the computer system to 80%-90% and then adjust the speaker, so that the distortion will be a little less! The speaker can also be a little louder.

The speaker is forced to be adjusted to a very loud voice, and the amplification circuit can't withstand it, so it will buzz. Most of the multi-** speakers are designed to match the unit and the amplifier circuit just right. Don't turn it up too loudly.

2.Turn up the volume in the lower right corner of the system by 80%-90% (the sound card will not be distorted in this range). Then use the speaker to tune,If the speaker is still Weng Weng sound,You have to check whether there is a problem with the wire,Poor contact。

Test method: You first turn down the volume, pull out the speaker cable from the sound bayonet, plug in a headphone to listen to the song, and see if it will be a Weng Weng sound. If it won't,Just check if there's a problem with the speaker cable connector,No problem, it's just that the quality of the speaker is too poor,Change a pair。

First, the first bai must confirm that there is no problem with the hardware. If there is nothing wrong with the speaker, the sound card is also fine, such as dao

If you are already in it.

If the version of his machine has been tested and is indeed intact, then you can continue to look down.

2. Make sure all the cables are exactly right. Then power on the speaker and turn on the volume switch.

3. Install the driver of the sound card correctly, if it is an onboard sound card, it is best to install the driver provided on the driver disk of the motherboard. (Actually, the computer doesn't make a sound, and many times it's because the sound card is not driven correctly.) In general, after the sound card driver is installed, there will be a small speaker icon in the taskbar in the lower right corner.

Fourth, if you are sure that the driver is installed correctly, then take a look at the volume settings in the computer. The specific method is to double-click the speaker icon in the taskbar, and check whether the volume is turned off to the minimum in the "Volume Control" and "Waveform" dialog box in the pop-up "Volume Control" and "Waveform".

If these two options are not available in the dialog box, click on the "Options" menu - select "Properties" - select "Volume Control" and "Waveform" in the "Show Volume Controls" and then set them correctly. Note: Step 4 can only be set up after the driver for the sound card has been installed correctly.

That kind of sound should be a circuit problem, that is, there is a problem ...... a certain link of the audio output equipment

[Problem description]:

The computer emits the sound of an electric current.

Cause Analysis]:

It is related to the humid weather.

The sound card is broken. Magnetic resonance.

The socket solder leg is loose.

Easy Steps]:

This kind of problem belongs to the computer hardware failure, it is recommended to contact the computer after-sales maintenance treatment.

Resolution]:

It is related to the humid weather, related to the power supply (power supply) of the speaker, and related to the power supply of the computer. Keep your computer in a dry place.

Hardware issues. The [sound card] on the motherboard is broken and needs to be repaired (bad contact, change the socket on the computer.) When the contact is intact, the current is in the headset, and there will be no sound. ）

Wires that are entangled will cause magnetic resonance, so it is recommended to untie the wires and replace them with cables with degaussing functions (do not place mobile devices such as mobile phones and *** next to the speaker).

The soldering feet of the socket on the back of the motherboard are loose, caused by poor contact. If the computer is running normally, it is recommended to use it normally.

Don't listen to the upstairs. CPU fans don't need to be replaced. This phenomenon is related to temperature.

Now it's cold, and the oil in the CPU fan has solidified, which is why there is such a loud noise. However, you'll be fine after turning it on for a while. The temperature went up, and the oil flowed with it.

This is normal. If this problem is serious, it is recommended that you be aware of the dust of your CPU fan, and you can also add a little oil to the fan.