Computer experts come to help with the sound card problem

Is the restart after no sound machine automatic or are you manual?

If you restart manually, it is recommended that you do this to judge once: after listening to the song silently, immediately restart the machine manually to see if there is sound at this time, if there is a sound, you should be able to eliminate hardware failure.

If there is still no sound after restarting, it is basically a hardware fault (sound card or speaker).

From the phenomenon described (but it was more serious than this a few days ago, the boot sound was silent before it finished when it started!) See, the possibility of hardware failure cannot be ruled out (hardware failure is more likely than a driver problem).

If you are using an active speaker, it is recommended to try it again:1Use a headset to see if there is a problem (suspect a problem with the active amplifier), if you use a headset to have the same problem, at least the speaker is ruled out.

2.If you don't have a headset at hand, you can try this: don't turn on the main unit, power on the active speaker for a period of time (longer than the usual time when the problem occurs), and then turn on the main unit to see if there is no sound when you turn it on.

You should check to see if the capacitors near the motherboard's sound card have exploded! Because after the capacitor electrode is broken down, the charge and discharge function fails, use a multimeter to test the capacitance near the motherboard sound card (the capacitance must be measured with a pointer multimeter) to see if the capacitor charging and discharging is normal!

Go buy a sound card and install it.,It's estimated that the on-board sound card is broken.,An ordinary sound card can be done for dozens of dollars.,What's the trouble so much.。

You go to the control panel sound properties and have a voice click on it, select the advanced test, and you will know.

1) When you can't hear the sound with the computer, listen to a song with Qianqianjing, if it will move forward, the sound card driver is not or, it may be your headphones or audio, you can try another one

2) It may be that the driver is broken, after starting the computer to listen to songs or watching movies for a short period of time and can't hear the sound, look at the hardware of the sound card in my computer properties - device manager, whether there is a yellow question mark, whether there is or not, install the sound card driver again to see if you can hear the sound

It's useless to blindly change more than you can open the box and see the model of the sound card chip.

So you have to take a look at the sound card chip of your machine, and try the next corresponding driver, and then you can know whether the sound card is broken or the driver, and the sound card is not easy to break. OK.