If the Win764-bit computer does not have sound, you cannot reinstall the sound card.

I used to have a 2G memory stick that is better than 2G MHz. Today I have added a 2G 667MHZ memory stick to Kingston, and then there will be no sound. Reload the sound card and restart it. If you try N, it won't work.

My computer is Win7 64-bit. I used to have sound all the time. I had no sound when I added the memory. It is true that the "Disable signature Jack detection" is enabled, and the sound card driver has been reinstalled many times in the drive life. The latest version.

Then I started Driver Management and found two sound cards in it? One HDMI sound card and one sound card. At first, I thought it was the problem, and later I realized it was not.

It took more than an hour to go crazy. Finally, let's talk about the solution (Backup ):

1) connect the computer audio to the middle Jack in the second row. The last hole I used to connect to, because there is a headset pattern on it.

2) Select "Speaker" instead of "realtek digital output" in the sound controller. Many people mistakenly believe that they want to choose realtek digital output.

3) when there is a sound, but the sound does not play the music, there will be a magnetic sound. My audio is a USB speaker. I changed the USB interface and inserted it into it.

By default7 # zbphp.com. If your computer has no sound, try this method.