Questions about the sound made by the computer case

This is mainly caused by the fan without oil, most of the oil seal bearings or hydraulic bearings will appear this problem, even if you add oil for about 2 to 3 months, this problem appears again, the effective way is to replace the fan, if not, you can add some cotton or sea surface on some ventilation channels, but although this method is more effective in reducing noise, but it will greatly reduce the heat dissipation effect of the computer, but generally most of the rotors in the fan do not have oil, just add some oil and then clean it Remove the fan and clean up the dust! Remove the iron cover on the top, remove the logo again, and then you can see that there is a dust cover, open it, and drop a few drops of lubricant into it! Get!

The way to do this is to remove the fan and clean up the dust! Remove the iron cover on the top, and then remove the logo, but if you change the fan, you have to change it to a ball bearing Other fans will soon have this problem again, you can see that there is a dust cover, open it, and drop a few drops of lubricant inside! Get!

The diameter is 8cm, the rotor is a new fan with ball bearings, the price of a fan with a power of or less is generally about 5 yuan to 7 yuan, and the price of a new fan with a diameter of 12cm with a ball bearing is generally about 8 yuan to 15 yuan.

Butter for machinery is best, followed by sewing machine oil, and engine oil is also available. Sometimes I go to other people's homes to repair computers, and I really can't find good oil, vegetable oil, and sesame oil, haha! Anyway, it will be able to last for about 3 months, and then add it, and then add it, and it should be changed.

First, first confirm that the hardware is fine. If the speaker is fine, the sound card is fine, and if you've tested it on other machines and it's really good, then you can read on.

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.

In fact, the computer does not make a sound, and many times it is 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.

If the computer has not been turned on for a long time, and too much dust has accumulated on the electric fan, this phenomenon may occur, the solution is to disassemble the computer, remove the power supply, remove the fan from above, and remove the dust. Then reinstall it, and the general noise will be eliminated after turning on the machine.

The poor performance of the optical drive is generally found on the newly purchased computer or the newly purchased CD-ROM, and there is a huge "humming" sound when reading the disk, and after eliminating the fault of the optical drive, it is likely that there is a problem with the power supply. It is necessary to take it apart and check it.

Isn't it a tick-tock-tick sound? If it's like this, it's the sound of the hard disk, and there are few hardware in the host that can start the sound, one is the fan, one is the memory, and one is the hard disk! But the sound of the fan can be heard as soon as you hear it, and the memory is generally a long and two short or a long dripping sound!

If the memory rings, it won't turn on! Your problem is the cause of the hard drive!

Check to see if there is a problem with the hard disk, if you don't run the program, the hard disk is still ringing, there is a bad sector.

Also: finding the problem.

1. When the sound appears, observe whether the small red light (hard disk working indicator) near the case switch flashes rhythmically with the sound, if so, it is the sound of the hard disk;

2. Now the CPU fans are all variable speed, which is automatically controlled by the motherboard, and if the CPU temperature is high, it will increase the speed, and when the temperature drops to a certain extent, it will maintain the original speed. Open the case, wait for the sound to appear, and judge whether the sound** is the CPU, if not, observe the power supply and the fan of the graphics card (use a small stick to stop the fan rotation when the sound appears, and see if the sound disappears);

3. For the machine you just bought, exclude the sound caused by dust friction of the fan;

Solution: Hard drive ringing is normal.

If the fan rings too loudly, it is recommended to replace it.

It is the fan and the hard disk that make the abnormal noise.

The fan is not well lubricated and loud.

Specific** problem: Disassemble the chassis and take a look at the optical drive, read the disk, and detect the floppy drive, which may be very loud.

It is best to let them deal with the after-sales service of the brand machine.

This is normal.

Because when playing games, the hard disk has a large amount of data reading and storage, so the noise is obvious at this time. Any hard drive has noise at any time, the outside world is loud during the day, and the hard drive sound is not obvious, but at night, in the dead of night, you can easily hear the noise of the hard drive.

Your computer is newly bought, and the noise at this time is normal, not caused by hard disk damage, you can rest assured.

The quality of Lenovo should be changed to trust, a big brand, and an Olympic partner, my computer is also Lenovo Jiayue, not bad.

If something goes wrong with your hard drive, your machine will run slower and hurt.

There may be something wrong with the fan.

Lenovo's hard drives have always been poor.

I hope you pay attention.

It's definitely a hard drive.