What is the reason why the computer screen monitor sometimes makes a rattling sound

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.

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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.

Maybe there's something wrong with the fan!

Listen to the sound to solve, according to the length of the sound.

1.Two short beeps: The CMOS is set incorrectly.

2.One long and one short: Memory or motherboard error.

3.One long and two short: The monitor or graphics card is wrong.

4.One long and three short: The keyboard controller is wrong.

5.One long and nine short: The motherboard flash memory is wrong.

6.Constant ringing: The memory is not plugged in properly or the chip is damaged.

7.Short ring: Power failure.

8.Ringing: The monitor is not connected to the graphics card.

ami： 1.A short sound: Memory refresh failed.

2.Two short beeps: Memory verification error.

3.Three short beeps: The system basic memory self-test fails.

4.Four short beeps: The system clock is wrong.

5.Five short beeps: CPU error.

6.Six short sounds: Keyboard error.

7.Seven short sounds: The real mode of the system is incorrect. Cannot enter protected mode.

8.Eight short sounds: Memory error.

9.Nine short beeps: Motherboard flash error.

10.One long and three short: memory error.

11.One long and eight short: the display data cable or graphics card is not in good contact.

What kind of monitor yours is.

CRT is caused by poor sealing of the high-pressure nozzle, leakage and ignition, and it is good to use glue bees to go down, and LCD is a bit complicated.

It is best to send it for repair.

This sound comes from the line output, the CRT circuit, and the power supply circuit. When the sound is more complex (especially when the brightness of the image is more obvious), there are the following parts may emit this sound, depending on the part of the sound, the possible fault phenomenon and fault handling methods are also different, the repair cost is also different, generally ranging from 20 yuan to 200 yuan (no cap). You can open the case yourself and take a look at it before making a decision on whether to repair it in the market or replace it (generally old monitors can also be sold for 80 to 150 yuan.)

1. High-frequency whine. This kind of fault is best solved, except for the quality of the fault, most of them are caused by the oscillation core aging loose or oscillation frequency offset, the core can be solved by a little adjustment, this fault to the repair department to repair the repair cost of 20 yuan.

2. Power whine. The difficulty of this failure is to medium to high. Most of the capacitors of the power supply part have to be replaced, and most of the customers do not recognize them when they are replaced.

This kind of fault maintenance fee plus spare parts generally costs more than 50 to 100 yuan.

3. Medium pressure ignition. This kind of failure occurs in winter and mildew rainy season with high air humidity, and it has a special part of the fire, but if it is not treated, it will endanger the life of the picture tube. It is less difficult to deal with, as long as you change the picture socket. The maintenance fee plus accessories is about 50 yuan.

Fourth, the circuit board is ignited. This kind of fault repair rate is relatively high,Not very easy to deal with,When there is this phenomenon, it is best to replace the new display,If you repair it, the maintenance cost is not high,Generally twenty or thirty yuan is fine。

Fifth, high-pressure ignition. This kind of fault is more complicated, involving a series of circuits such as power supply, line oscillation, line input, line output, etc., so the maintenance cost is relatively high. The general maintenance fee plus accessories is more than 70 yuan.

What should I do if the monitor makes an abnormal soundQ: I am using a CRT monitor, and whenever I turn on the power, I often hear the monitor make a "pop" sound, what is going on? What should I do if the monitor makes an abnormal sound?

I'm using a CRT monitor and I often hear a "pop" sound whenever I plug it in, what's going on? Ordinary CRT displays, because it is affected by the surrounding magnetic field for a long time during imaging, will cause the picture tube to be magnetized, causing the image tube to be magnetized, causing image and color distortion. In order to avoid this problem, the display is added to the degaussing coil during production, whenever the display is connected to the power supply, the degaussing coil will start to work, and the "pop" sound when turning on is due to the degaussing current through the degaussing coil, so it will not have a negative impact on the display.

When the overall color shift of the display appears, it is mainly caused by the problem of the decoding circuit in the display, or the leakage of some small capacitors causes the output power of the cathode tube of the three primary colors to be insufficient, resulting in the failure of one of the three color signals. Your monitor is left with only a red and blue signal due to a lack of a green signal, which makes the screen appear color cast. Since it will not take long to recover, it is estimated that the display decoding circuit is not likely to be damaged, and it may be related to the system temperature, if the graphics card is not in good contact with the display interface, when the temperature rises, the metal contacts will expand to restore the connection to normal.

Solution: Connect the monitor to another host computer, if the fault goes away, it may be a fault of the graphics card. If the fault persists, it may be a fault of the monitor itself or a fault of the monitor cable interface.

Focus on checking whether the metal pins of the monitor cable interface are broken or bent, if not, simply replace the monitor with a new cable and try again.