Why does the computer s exhaust fan make abnormal noises?

If it's a chassis resonance.

Just padding something underneath the signs.

If there is a loud abnormal noise.

It should be the fan bearing balls that are broken.

I had to change the fan.

It's a buzzing sound, and if it's broken, it's obvious.

1. If it is caused by chassis resonance, put something underneath the chassis.

2. If there is a big abnormal noise, it may be that there is a problem with the fan bearing and the fan needs to be replaced.

3. There is a lack of oil in the fan. When the fan is just turned on, due to the lack of oil, the friction starts with a large torque and a loud sound, and after rotating for a while, the fan bearing part heats up, and the thermal expansion and contraction of the bearing hole becomes larger, and the torque is smaller, and the sound is smaller.

4. There is also dust on the fan, which causes the imbalance of the fan blades and produces abnormal noise when rotating. You just need to clean the fan and you can solve it.

It's hot. Dusty.

Aging fans. Clean it up.

Reasons why laptops have abnormal noises:

1. There is too much dust in the fan.

2. The fan bearing is loose or damaged.

3. The fan is damaged.

Solution: 1. Turn off the laptop and unplug it. Open the back cover of the notebook;

2. Take out the fan and brush off the dust with a small brush;

3. Use a cotton swab to dip some oil and apply it to the fan bearing, you can apply a little more, let it dry for a while, and wait for the oil to penetrate automatically;

4. Install the fan back in its original place, install the back cover, open the laptop, and check if the fan still has abnormal noise. If there is still abnormal noise, it may be that the fan is damaged and needs to be replaced with a new one.

The reasons are as follows: 1. The fan blades of the computer's cooling fan have accumulated a lot of dust, the fan blade load is heavier, and the heat dissipation capacity becomes weaker. As a result, the sound becomes louder and the time becomes longer during operation.

Solution: Go to a professional computer repair shop and clean the ash.

2. If the computer is not used for a long time, the lubrication at the fan shaft becomes worse and the running resistance increases. This leads to poor heat dissipation and longer running time.

Solution: Find a professional to disassemble the machine, and purchase special lubricating oil to lubricate.

3. Software problems. There is a lot of software open at the same time, the computer is working at full capacity, the heat increases, and the fan continues to work.

Solution: Close some software, and don't start a lot of software to solve the problem.

Method 1: 1. First dismantle the hail stuffiness, we need to disassemble the computer and confirm the part where the sound occurs. 2. If it is the sizzling sound of the "fan blades", then it is not a big problem.

3. We only need to disassemble the fan, clean up the dust, and add a little oil in the middle. Method 2: 1. If it is confirmed that it is not caused by the fan blades, then pay attention.

2. It is likely to be due to the inductance of the power supply, or the leakage problem caused by the voltage instability. 3. You can replug the power cord first, and replace a power cord if possible. 4. If it is not a circuit problem, it should be a broken or unsuitable power supply.

5. At this time, it is necessary to replace a stable power supply that is suitable for the computer configuration.

How to solve the abnormal noise of the computer fan: First of all, we need to disassemble the computer and check the part where the sound is generated. If it's the sizzling sound of the "fan blades", then it's not a big problem.

We just need to take the fan apart, clean up the dust, and add a little oil in the middle.

If you confirm that it is not caused by the fan blades, you should be careful. It is likely that the leakage problem is due to the inductance of the power supply, or the voltage is not stable. You can replug the power cord first, and replace a power cord if possible.

If the tour burns is not a wiring problem, it should be a broken or unsuitable power supply. At this time, it is necessary to replace a power supply that is stable and suitable for the computer configuration.

The performance of the computer fan

The higher the power, the stronger the fan and the better the heat dissipation. The power of the fan is directly related to the speed of the fan, that is to say, the higher the speed of the fan, the more powerful the fan. Generally, the best fans in the computer market are DC 12V, and the power varies from W to W, so the power needs to be selected according to the heat generated by your CPU.

If the power is too large, not only the cooling effect is not greatly enhanced, but it may increase the workload of the computer, and ultimately shorten the life of the CPU and the fan. Therefore, when choosing the power of the CPU, you should measure the "heat".

The abnormal noise of the laptop fan may be caused by loose fan blades or excessive dust blockage, resulting in uneven speed.

There are 4 reasons why laptop fans are squealing:

1. The fan blades are deformed or loose, and the conduction seeps and causes uneven rotation.

2. The fan bearing is aging and worn or has insufficient lubrication.

3. Dust or dirt blocks the draft fan or radiator, resulting in abnormal operation.

4. The internal temperature of the computer is too high or the circuit board is damaged.

How to Fix Laptop Fan Abnormal Noise Issue:

1. First of all, the influence of dust and dirt should be eliminated. Fans and radiators can be cleaned using compressed air or a soft-bristled brush.

2. If cleaning still doesn't solve the problem, you may need to replace the fan or fan bearing.

3. If the problem persists after replacing the fan, you may need to upgrade or replace the hardware components inside the computer.

4. If none of the above methods can solve the problem, it is advisable to contact the manufacturer or professional maintenance personnel for repair or replacement.

5. In order to avoid this problem, it is recommended to clean the radiator and fan of the laptop regularly, and keep the computer well ventilated. <>

For noise caused by fan aging, just take out the fan, then remove the fan blades, and add some lubricating oil to the fan bearings. For example: transformer oil or sewing machine oil.

It is that the fan speed is too fast, this phenomenon is usually caused by too high temperature in laptops, we can remove the heatsink and replace the heat dissipation grease of the processor and graphics card. The temperature control collapse of a small number of computers will also cause the fan to rotate too fast, which can only be solved by a professional maintenance master.

The fan sound caused by too much fan dust Ohno Hui, disassemble the fan, clean up the dust, oil smoke, etc. on the fan, and at the same time, you can also add lubricating spine oil to the fan bearing.