For modern young people, when they go to work, they almost have one computer for each person, so sometimes the basic problem-solving methods of some computers need to be understood, so what about computers without sound?
What if there is no sound in the computer? How to solve the problem of no sound in the computer
（1） , BIOS error setting causes no sound on the computer
The reason for this is that some novices have just started to learn BIOS settings and accidentally set the wrong options in BIOS. This situation is more troublesome for the novice, because I don't know where I just set the BIOS. Because of the changes we made in BIOS, even if we redo the system, the computer will still have no sound. There are only three ways to solve this situation.
1. Find the BIOS sound card option and change it back. The following describes a common BIOS modification method. First enter BIOS, select I / O device configuration, onboard AC97 audio controller, and change it to enanle or auto. My computer is HP's, the BIOS of other computers may be different from mine. But you can find the corresponding words to enter the settings.
2. Restore BIOS to default. Enter BIOS, select Load setup defaults BIOS or words like restore setup defaults. I personally recommend this method. It's the simplest and most effective method for a friend who doesn't know how to set it.
3. To discharge the BIOS, you need to disconnect the chassis. Remove the BIOS battery. The positive and negative electrodes can be connected and discharged. I won't say much about this method.
（2） What to do if the computer doesn't sound after installing the hardware device
In this case, after installing a new network card or other hardware device, the computer will be silent.
Generally, there are only three solutions to this problem. One is to update the driver of conflict. The second method is to change the interrupt in BIOS and eliminate the conflict. The third way is to replace the hardware.
Most of the reasons for this situation are caused by the interrupt conflict and compatibility between the hardware. As for the compatibility between the hardware, generally as long as it is not a special new device, the manufacturer will provide the latest driver to solve this kind of problem. In this case, we just need to follow the first method. But for interrupt conflict, it may be a little more troublesome to operate. First, enter the device manager to check the IRQ interrupt of the newly replaced hardware. Next, manually set the IRQ in the device manager to eliminate the interrupt conflict. If you can't solve the problem, you need to enter the BIOS and turn off the devices that can't be used on the computer. In this way, you can free up a lot of IRQ interrupts. Of course, hardware such as memory module and network card has more than one slot. Sometimes changing one slot can solve the problem, because it will change the IRQ interrupts on the hardware. At this time, we can enter the BIOS, where Set reset configuration data in PNP / PCI to enable, and then the computer will clear the PCI device table and reallocate IRQ interrupt, so the probability of conflict again will be very small. In the last case, only the hardware is replaced, which is basically because the equipment is very new.
After installing the hardware device, the problem that the computer has no sound is relatively few, but there are still some. The computer I have repaired has encountered more than a dozen cases, so I'm prepared.
（3） How to deal with the sudden silence of the computer
Some friends are very strange about the problem that the computer has no sound. Suddenly there is no sound when using it. In principle, I haven't changed anything. There should be no problem with the system. There has been a sound before. It shows that there is no problem with the video card. The probability of hardware equipment problems is very small. This problem often troubles many friends. Today, I'm going to explain to you how to use computers to solve the problem of suddenly no sound.
In case of such a computer problem, first of all, remember whether your computer has opened any software when there is no sound suddenly. Many software conflicts will also cause the computer to have no sound. This kind of failure is because the old sound card does not support multiple audio streams, nor does it support the function of ACPI interrupt sharing. If that's the reason, you can update the software, or see if you have the latest sound card. Of course, if there is no solution, you can also send your feedback to the manufacturer.
Secondly, it is recommended to reinstall the sound card driver. The most standard solution is to turn on the machine and enter the safe mode, and uninstall the sound card (it will not be automatically reinstalled at this time). Next, start the system normally and install the sound card driver again according to the prompts. Enter the control panel to check whether various settings are correct. If all are correct or there is no sound, you can consider whether the sound card is broken. If it is integrated, you may need to replace the whole motherboard. Of course, before this happens, it's best to confirm whether the sound card driver you installed is correct. The safest thing is to go to the official website and download it.
（4） The solution to the problem of no sound caused by virus
Many friends have encountered such problems. After using anti-virus software to kill the virus, the computer has no sound. In fact, this is caused by the virus infecting the audio file. The anti-virus software cannot clear the virus, so only the infected file is deleted together.
In fact, it's a good solution to this situation. Generally, antivirus software does not delete virus files directly after deleting them. It will be saved in the backup directory in case of various system problems caused by deleting files by mistake. We can find it in the antivirus record and restore it. However, this can be said to be a cure or not. Although the voice is back, the virus is back. In this case, we can write down the deleted file name, and then go to another good computer to copy a new one and paste it in the same location. Of course, you can also extract it from ghost system package.
Another solution to this problem is to remove the driver and reinstall it. If the virus infects the audio driver file, this method can be solved. But if it's the main audio program, there's nothing this way can do.
（5） . what if there is no sound after the sound card driver is updated
As we all know, if there is no sound card driver, the computer will certainly have no sound. Now, after the ghost system is installed, all drivers will be installed automatically. However, many friends find that there is no lack of sound card just after installing the system, but there is still no sound. At this time, we can try to download a sound card driver from the official website of our computer system.
If the sound card is installed, our computer still has no sound, and the sound card does not have any problems. At this time, we can check to see if the sound card driver is disabled. Because during the installation of some software, the sound card will be temporarily disabled. After the installation, the software will automatically restart the sound card driver. If there are unexpected problems such as installation errors, etc. Then the result can be imagined. As for the sound card being disabled, we can try the following methods to reopen it.
First, enter the device manager, expand the sound, video and game controller options, find the sound card item, and right-click to turn it on (if the sound card driver is disabled, there will be a cross in front of the small horn icon). ）, another possibility is that the sound is turned off in the sound property. The solution is to first enter the control panel, open the 'sound and audio device' option, in the pop-up properties window, select 'volume', and then adjust the sound to the appropriate position. If you don't have a 'trumpet' icon in the bottom right corner of your desktop, you can also tick in front of 'put the volume adjustment icon in the taskbar'. After you quit, you will find that the problem of no sound on the computer has been solved.