The laptop fan is always buzzing, what s going on??

Laptop fan buzzing, generally speaking, this situation occurs, dust, foreign objects are the main cause, disassemble to clean up dust. It may also be caused by the aging of the material, so consider replacing the parts.

In addition, there may be a problem with the parts that control the operation of the fan, whether it is a problem with the software, the driver or the system.

This solution is applicable to XP Vista Win7 system.

Problem Description]:

Computer noise, fan noise.

Cause Analysis]:

The optical drive has an optical disc caused.

Hardware failure. Solution:]:

Solution 1: Check the optical drive.

If there is a disc in the optical drive, please take out the optical disc when the optical drive is not in use, otherwise every time you boot up and start up, you will check the peripherals of the optical drive and read the optical disc, 2

The vibration and sound of the computer will be relatively loud.

Option II. Detect hardware and fans.

The hard disk disk will squeak or click when reading data on the track, as long as the computer is running more frequently than the case of frequent crashes, the hard disk sound is normal, especially the old machine hard disk aging or the sound of the large storage hard disk is louder.

If it is the sound of a fan whining, the computer has a temperature control setting, and with the length of computer use and the temperature of the computer, the speed of the host fan, especially the CPU and graphics card fan of the notebook, will change.

In the same way, if it is an old machine, it is recommended to clean the dust of the graphics card fan, CPU fan, and host power supply fan, and if the effect is not obvious, you can appropriately add the special lubricant for the fan or replace it with a new one.

It is recommended that you go to a professional repair shop to clean up the dust from the graphics card fan, CPU fan, and host power supply fan to avoid unnecessary hardware damage.

The sound suddenly sounded, indicating that the temperature in the machine has risen, and the fan has accelerated the number of revolutions to dissipate heat.

1. The computer is not flat: there are generally two fans in the laptop, namely the CPU fan and the graphics card fan, if it is used normally, the fan emits a "whirring" wind sound, if the laptop is placed in an unstable or uneven position, it will cause the fan to not be in a relatively flat position, and there will be a "buzzing" sound when running. Workaround:

In this case, you can turn off the computer first, then flip the computer, and then reposition it to turn it on, and the sound will disappear.

2. Different fan modes or too many opening programs: Some laptop fans can adjust the speed, the fan has a service life, and when the wear is serious, if the standard or boost mode is turned on, there will be a "buzzing" sound. In addition, opening too many applications at the same time will also cause the CPU to run faster, and the fan operation pressure will be high.

Solution: Take ASUS laptop as an example, you can press the "FN+F5" key to switch the fan speed, and the hum will disappear. In addition, turn off redundant applications to reduce CPU usage.

3. The computer fan has a lot of dust or the fan bearing is damaged by lack of oil; If there is a lot of dust on the computer fan after using it for a long time, in order to achieve the air supply volume, the fan will rotate faster and there will be a sound. It is also possible that the noise that occurs is caused by the CPU cooling fan getting stuck or the oil drying out in the fan bearings.

Solution: Open the back cover panel of the notebook, remove the cooling fan of the CPU, sweep the dust on it with a brush, if the oil in the bearing inside is dry, you can add one or two drops of lubricating oil, or replace the fan, so that the noise can be reduced to a minimum and work efficiency can be improved.

When the hard disk is working, it will emit a certain sound due to the high-speed rotation of the motor and the movement of the magnetic head.

When your hard disk reads and writes frequently (power on, start, defragment, antivirus, etc.) or when you are in a relatively quiet environment, the sound of the hard disk working will be slightly more obvious, which is a normal performance.

It is normal for the laptop's fan to produce a certain sound when it is working because of the rotation of the fan and the flow of air.

The rotation of the fan is related to the temperature of the CPU, such as the use of high ambient temperature, too many running programs or large software will cause the CPU temperature to rise, when the CPU temperature increases, the fan will rotate more frequently, and the sound will be louder.

If the sound is particularly loud, or you feel that it is abnormal, it is recommended that you go to the nearest official service center and have an engineer test it on site.

The reasons why the laptop fan buzzes and vibrates are as follows:

1. There are many reasons why the fan is loud, and we need to eliminate it step by step. Let's start with the software. If the high temperature continues, then it may be that there are a large number of programs running in the background of the computer, resulting in the high heat generation of the CPU running at high speed, and the fan must be maintained at a large wind speed to achieve the purpose of heat dissipation.

2. If the cooling fan is damaged, the fan will gradually wear out after a long period of use, or due to the lack of oil in the bearing, it will make the fan produce a louder sound when it rotates. Moreover, due to the low degree of fineness of workmanship, the center of gravity of the fan blades will deviate from the center of gravity of the fan blade, which will cause the fan to be abnormal.

3. After the computer is used for a long time, it will accumulate a lot of dust on the fan blades, which will increase the load of the fan and reduce the speed.

There are two main principles of heat dissipation in the heat dissipation base of a notebook:

1. Realize the heat dissipation function purely through the principle of thermal conductivity in physics. The heat dissipation effect can be achieved by placing a heat dissipation base made of plastic or metal on the bottom of the notebook and raising the laptop to promote air circulation and heat radiation.

2. Install several cooling fans on the heat dissipation base to improve the heat dissipation performance. This air-cooled heat dissipation method includes two types: suction and blowing. The difference between the two forms of air supply lies in the difference in the form of air flow, which produces turbulence when blowing, which belongs to active heat dissipation, and the wind pressure is large but it is easy to suffer from resistance loss.

The main ones that make such sounds are CPU fans, graphics card fans, power supply fans, etc.

1. The computer host has not been cleaned for a long time, and there is too much dust.

2. The cooling fan has no lubricating oil or the lubricating oil is very viscous, which will have a great impact on the fan, resulting in a loud sound.

3. If the computer fan in the case is not installed firmly, the vibration of the fan when the fan rotates will cause the case sound to suddenly become louder, so it is recommended to tighten the fans of each radiator, and it is recommended to check whether the cable in the case is reasonable.

4. The resonance of the radiator can also produce noise, but not every computer will produce resonance noise, and the way to eliminate resonance noise is actually very simple, adjust the placement of the chassis or add some soft cushions. It is not a good idea to add sound-absorbing cotton to the inside of the case, which will often affect the heat dissipation of the case.