How to deal with the noise of computer chassis

1, the Demolition boot box, sweeping all dust (especially in the northern region), preferably with discarded brush cleaning, with the vacuum cleaner can clean clean.

2, remove the CPU fan channel fixing screws, carefully open the CPU heatsink, you will find the CPU and heatsink gap in the silicone ester has long been dry (and CPU power is very much related), with a slightly moist clean repair clean dry silicone, dry.

3, conditional can be used to make up the advanced silicone, there is no condition to use the following methods: will be purchased or white ordinary silicone ester a little squeezed onto the glass, with a carbon pencil edge on the glass and stir, until the white silicone into a light gray and slightly thicker, with a blade on the clean CPU coated a thin layer, you can install the heatsink, Remember not to move the heatsink back and forth so that the heatsink is in good contact with the CPU. -This method makes the silicon ester and the Intel specialized silicon ester The test difference is not small, has the good thermal conductivity and is not easy to dry.

4, carefully inserted large fan, the central fan with a trademark circular adhesive carefully opened, you can see the center of the central Axis exposed, with Vaseline (very cheap, pharmacies have to sell) carefully coated, carefully sealed with a trademark of the round stickers can be. -Principle: Vaseline mostly used to smear hands, to prevent dry skin in winter, chapped, it has a feature: when the fan will produce heat when working, Vaseline will gradually melt into the fan bearing lubrication, shutdown fan stopped working, then the temperature down after the jelly will be solidified standby, this method than the addition of any lubricant effect is good.

5, install the chassis, in the chassis before and after the cushion slightly thicker rubber skin, play a role in shock absorption.

6, boot Try it, the beginning is not too obvious, but about a week or so, you will find your computer fan and chassis noise is getting smaller and quieter, a lot of quiet, basically with the purchase of the time is not bad up and down.

1) Expert analysis: The longer the use of computer, coupled with the host because some people move, or internal hard drives, fans and other parts of the continuous operation, rotation, sometimes there will be a slight loosening of screws, resulting in increased vibration, noise and become larger. In addition, if the use of time is too long, the fan rotation axis will become more dry, because of the lack of lubrication and the rotation of the tone has improved.

Do it quickly: for this small problem, no warranty of the computer users if you do not want to open the chassis because the damage to the warranty seal, as long as the host to the repair station to allow manufacturers to give you maintenance. If you are saving machine users or host long past the warranty period, then you will open the chassis, the visible screws are all tightened, for the fan rotation shaft plus one or two drops of lubricating oil, in addition to the chassis dust removal, your host noise will be reduced a lot.

2 The main sources of computer noise are as follows: Hard drive power supply fan CPU fan graphics fan motherboard device resonance

Sound comes from vibration, only vibration can produce sound, computer startup, the huge noise of host is undoubtedly due to the strong vibration of some parts inside the host. A big factor is the power supply fan and the CPU fan that rotate when the computer starts.

　　The cause of the power-on noise is manifold, but the main reasons are the following:

　　Resonant phenomena caused by fans:

A, chassis structure, power box installed structure and other components of the system has a low natural frequency (that is, the rigidity of the structure is poor) fan running speed gradually increased, when the speed close to the natural frequency of the system began to show the resonance phenomenon, as the fan speed is increasing closer to the system natural frequencies, and vibration intensified, When the fan speed and the system inherent frequency of the same vibration performance of the most intense. As the fan speed continues to increase, the fan's speed is gradually away from the system's natural frequencies, and the vibration is gradually reduced and returned to normal.

B, Fan blade "eccentric": high-quality fan, the center of the fan blade, the rotation is very smooth, the noise is very small, and inferior fans, there will be a certain deviation, the center of the fan blade does not cause "eccentric" in the axis, such fans turn up, The equivalent of an oscillator (oscillator is in the motor shaft with an eccentric wheel), as the use of the longer time, the fan bearing gradually wear, or fan heatsink installation is not strong, loose, etc., will make the vibration increased noise. Also may be because the fan quality is poor, the lubrication is not good, just starts to turn very astringent, and so on turns live, inside has the lubricating oil to soften, the sound is small.

C, the chassis structure is not tight: hard disk and Chassis stent contact is not tight, or chassis of the steel plate is too thin, easy to make some annoying noise. The noise caused by the power supply fan may be a mismatch between the chassis and the power supply. The power supply fan rotation causes a chassis resonance. In addition, the internal chassis of other hardware installation is not stable will cause vibration.

　　The weather is cold and the temperature is low:

Some fans are used in the grease, the winter temperature is low, the fan inside the grease solidified, in just open the fan bearing part of the temperature is low, grease viscosity, large rotation resistance, the sound is big, turning for a while the fan bearing parts of the temperature increased, lubricating oil began to function, At this point when the noise situation will return to normal state. This usually appears in just a few minutes after the boot. In this case the noise will not appear in other seasons.

Fan bearings lack of oil: if it has been loud, the fan needs refueling. In the center of the fan bottom has a circular sticker, uncover can see the internal shaft of the blower fan. With a toothpick dipped in a little sewing machine oil (probably rice size) added in. Then put the sticker on. Includes the CPU fan, the video card fan, the power supply fan can refuel. If you do not understand refueling can go to a computer repair shop to get professionals to do.

　hard disk Noise: hard disk sound is mainly a giggle, the quality of the hard disk will sound larger, and that if the hard disk is too much debris will increase the workload of the hard disk so that the sound is even greater, there is a situation is hard drive bad, it will also cause hard disk sound increase. Ordinary IDE hard disk in normal operation, there will be a certain amount of work noise. However, these sounds are small and are only generated when the hard disk data is read.

　　Dust Accumulation: chassis, power supply, CPU heatsink accumulated a lot of dust will also cause the fan to increase the sound. You can try the boot with a screwdriver and slowly debug the power supply on the chassis installed those screws to see if there is no chassis layout deformation, if there is change, the source of the noise is likely to be the power , CPU fan.

The reasons for the above are attributed to the fan, so we can use the following methods to solve:

Chassis hardware dust removal, fan oiling, securing chassis internal hardware

　　However, the following points should also be noted:

1. Note that the power supply, CPU fan lubrication, some fans because of poor quality, bad lubrication, just started turning very astringent, and so turned live, where the lubricating oil softened, the sound is small;

2. Do not move the chassis when you run the computer. The cover of the chassis to be installed in place, if exposed to the seam, the computer running, the chassis will vibrate, noise is also large, if the chassis deformation, can be under the chassis cushion soft things, such as sponges, foam and other damping materials.

3. Fans do not disassemble at will, you may not be installed in place, affecting the rotation, resulting in loud sound. If you do not understand can find professionals to help deal with.

4. Regularly to their own host dust, generally once a year, dust large areas can be appropriate to increase the frequency of dust removal. Own dust lack of equipment, afraid of trouble, recommended to the computer repair shop cleaning up.

5. The cold air temperature is one of the reasons that can not be seen. If this is the reason can be said that the machine is completely normal, there is no good solution, it can not increase the boot time in winter or direct shutdown.

6. Fan blade "Eccentric" fault solution is to try to install the fan firmly, so that it does not vibrate; the other method is to grease the fan bearing and cushion the vibration, thereby weakening the noise. The first two methods do not solve the real problem; The last method: Remove the blades, with a thin line through the center of the fan blade to lift the blade, if one end of the drop, indicating that the end is heavier, can be grinding a few times on the grinding wheel, so several, and then use a thin line to hoist the fan blades, if the fan blades can be static at the horizontal position, the success The last one is more cumbersome, if the computer has a long life and it is unable to solve the problem, the construction of direct replacement fan.

The noise of the computer mainly comes from the fan, a lot of data are introduced to the fan oil to reduce noise, but the noise of the fan is not necessarily because of the lack of oil bearings, it is necessary to take into account a variety of circumstances, to identify their computer boot when the real cause of loud noise, the right remedy, so as to charm.

There are usually 3 places in the brain fan, one is the power supply, there are fans, you can take apart, add some industrial butter, and the other two are CPU fans or video card fans, can be added to the axis of industrial butter for temporary solution.

Of course, this method refers to the use of computer for a long time, the accumulation of a lot of dust caused by uneven rotation of the rotating shaft.

Newly bought computer, or home use, one months, indicating that the quality of the fan is not good, such as economic licensing, the proposal or a new one, in order to quiet, this money is still worth spending.