The reason why the computer has no sound and the solution

  
What should I do if the computer has no sound? Many times, the computer will have no sound for various reasons. The specific reasons are mainly divided into software problems and hardware problems. The software problems include silent virus, sound card driver, etc. Hardware problems include interfaces and headphones. What to do when the computer has no sound? After understanding what is wrong with the computer, we can solve the problem easily. Generally, we deal with computer failures. We are all software first hardware. If your computer has no sound, please try the following solutions, which can generally be solved. Method 1: Check the sound control icon. If the computer has no sound, please check if there is a sound control icon in the task bar on the lower right foot of the computer desktop, as shown below: If there is this icon, it means that the sound card is installed on the computer, then there is no problem, then Click the sound control icon with the left mouse button, the sound volume adjustment switch control window will appear, check whether the volume is adjusted to the minimum, is it checked the mute, and many of the novice friends have dealt with the computer when there is no sound. Either adjust the sound to the lowest level, or check the mute, resulting in no sound on the computer. This is a low-level mistake that novice friends often make. If the above volume control icon is not found on the desktop of the computer, it may be a driver problem. If you look at the driver problem, you will know how to reject it. Some of them are not displayed. The way to display it is as follows: If there is no "Nothing on the right side of the taskbar" Speakers, go to Start---Settings--“Control Panel--Sound and Audio Devices” command, open the "Sound and Audio Device Properties" dialog box, as shown below: As shown above, put √ Click to confirm that there will be a sound icon in the task bar on the bottom right of the desktop. Check again, whether the volume is adjusted and whether it is muted. After the break, the computer usually has a sound. You can also click the <quo;sound> tab in this dialog box, and then click one of the program events (such as a program error) in the “Program Events” column, select a sound category, and then click on the right side. ; Preview & rdquo; button is black. If it is black, the sound card is normal. The cause of the malfunction may be that the system volume is too small, or the mute is set, or the speaker is faulty. Other reasons: If there is no sound card option in the “Device Manager” window, and the sound card is an integrated sound card, then restart the computer and enter the BIOS program. Then check if the peripheral options in the BIOS are set to “Disabled”, if so, change it to “Enable” If this item is set to "Enable", it may be that the sound card circuit of the motherboard is damaged, and the sound card circuit can be repaired. Can only be taken for repair. Method 2: Check if there is any problem with the hardware. If there is no sound on the computer, please check if there is any problem with your speaker or ear, whether the speaker or ear audio cable is well connected with the computer, and the interface is plugged in. I used to find that when a friend uses a speaker or an earphone, there is no sound because the audio cable is connected to the computer. This is also a very low-level error. How can there be a sound when no signal is connected to the speaker? Some are directly connected to the computer microphone. The interface went, I looked so funny, the computer interface has an audio interface and a microphone. Everyone must look at it. There are icons on it. Obviously, people who don’t understand the rookie can ask people around and see The manual is stronger than anything. If there is no sound in the computer before, if there is no sound, check the ear or the speaker is damaged, you can take a good try. It should also be noted that a typical desktop computer will have two pairs of audio interfaces distributed in front of and behind the chassis, so if the front interface is useless, try the rear socket. Because some computer installers may forget to connect the socket signal line on the front of the host to the motherboard. I have encountered many of these situations at this point. Method 3: Check whether the computer sound card driver is installed properly. It often encounters the situation that the computer system has no sound after reinstalling the computer system. This situation is mostly caused by the computer sound card driver not installed or incompatible. The solution is to find the computer sound card corresponding. The driver can be installed. How to find out if the computer sound card driver installation is not normal? We can enter my computer --- right---select --- attribute --- hardware -- device manager as shown below: Click device manager to enter the following computer hardware driver The situation check is a screenshot of the sound card installation driver. The screenshot of the sound card driver installation is like this. There is a yellow exclamation point on the sound card device! If there is an exclamation point in the sound card driver, the hardware driver in the current system does not meet the driver of the computer. Can be a new system, of course, this is not necessary to find the computer sound card model, Baidu directly find the driver installation, how to view the sound card hardware model of your computer? There are many ways, here are a few simple methods: Method A Start--Run--Enter: dxdiag command--OK, you can open the Direct X hardware diagnostic tool, then select - sound, you can see the sound card model. Method B. Click the yellow exclamation point shown in the above figure, click Reinstall Driver---Select Install from the list---Select the path to download the sound card--After all the way, the installation is completed. Novice friends suggest using the following method to download a "Driver Wizard" software, which is very convenient to install directly in the software. There are many such software, such as 360 butler and other software.
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