The computer host suddenly became louder, what is the reason?

You. Good. One is the problem of the hard disk, if the hard disk has been used for a long time, and it may be about to break down, the sound is very loud.

The second is that there is some looseness in the mounting parts, which will produce a loud sound due to vibration.

The third and most likely one is the problem of fans, including power supply fans, CPU fans, and graphics card fans, if they are not cleaned for a long time, they will make them work very noisy.

This is also more critical, especially in summer, in order to ensure the normal use of the computer, we must pay attention to whether the fan is working normally, so as not to bring unnecessary trouble and loss.

1.This situation is generally cold weather, resulting in the CPU fan hinge or the oil in the ball frozen, or the power supply fan fan hinge or the ball oil frozen, so that the computer boot sound is particularly loud, generally after the computer runs for a period of time, the computer heats up, the oil melts, and the sound will be normal. This usually happens in winter.

2.If the above statement is excluded, it may be because there is too much dust in the computer, and there is dirt on the fan, which increases the fan resistance, so that the fan cannot operate normally, and the computer sound is particularly loud.

3.There is a problem with one of the fans on your computer, including the power supply fan. It must be that the start-up sound is loud, and it will be good slowly, because the fan bearing is out of oil, and the gap between the bearing and the outer sleeve is very tight when it is just turned on, resulting in a very loud sound, and after rotating for a period of time, the sound will be small due to the increase in the gap between thermal expansion and cold contraction.

The solution is to open the chassis and find the loud fan to add some oil to the bearing, but it won't take long, and the second is to replace it with a new fan.

The first type: fan - now the power supply of the computer, the CPU, and the GPU of some graphics cards (computers with independent graphics cards) are all parts that generate a lot of heat, and there must be a corresponding heat dissipation device to help dissipate heat during the running process, and some computer North Bridge chips also need it, and the fan has physical friction in the rotation, which will definitely produce a certain sound. This is what many users call a "buzz" sound.

The noise of the CPU cooling fan is closely related to the computer CPU model and architecture, the power consumption of the Intel CPU is high, so the noise of the CPU cooling fan is relatively large, the working power of the socket478 CPU is between 60W and 80W, while the working power of the socket775 CPU is between 80W and 115W, so the heat generation and normal working temperature of the two CPUs in the work are also different, Socket478 The temperature of the CPU when it is turned on is between 30 degrees Celsius and 50 degrees Celsius, while the temperature of the Socket 775 CPU is between 50 degrees Celsius and 70 degrees Celsius. So the speed of the CPU cooling fan is different, resulting in different sounds.

After a long period of use, due to dust and the aging of the bearings, the fan may become louder or emit other friction sounds, which is also unavoidable. In particular, many people will clean up the dust of the fan, and then press the fan back, sometimes they will find that the sound has become louder, this phenomenon is normal, if you want to reduce this sound only by replacing the fan or lubricating the bearing of the fan, but lubricating the fan bearing can only reduce the sound, lubrication must open the fan, so that the sealing of the fan is low, and it is more likely to be affected by dust in the future.

Second: When the hard drive is working, it sometimes makes a creaking or rattling sound.

The hard disk of the computer is working at the high-speed motor in the hard disk to drive the head back and forth on the disk to find data (the most popular explanation I can think of), this is also a kind of physical movement, it will inevitably make a sound, and with the continuous increase of the speed of the hard disk, this sound will be relatively larger than the key, especially now the low speed of the hard disk and the high speed of the hard disk will be more obvious. When the hard disk is working, it will make this gear-like sound as the hard disk indicator of the host computer flashes, which is very normal.

The sound mentioned above is what many users think is abnormal noise, but in fact, there is no problem.