Win7 system driver solves the computer without sound

How to use the win7 system driver to solve the computer without sound:

Windows 7 system integrates a large number of device drivers, after installation All the device drivers are installed. The SoundMax AD1986A sound card produced by Analog Devices, which is integrated in the motherboard, is recognized as a "high-definition audio device". Windows Media Player can play MP3, and the volume control slider can be dragged. The indicator is also beating, but the computer has no sound. After several groping, I finally saw the problem from the volume icon prompt and the volume control dialog box. The playback device they prompted turned out to be "headset".

1. Click on "Synthesizer" on the volume indicator to open its dialog box.

2. Click on the "Device" menu. There are two items "Headphones" and "Speakers". The "Headphones" are the default devices. Click to select "Speaker", the computer still has no sound, re-open the "Volume Synthesizer", the default device in the "Device" menu is still the headset, it seems that the default device cannot be changed here.

3. Right click on the volume icon, select "Play Device", open the "Sound" dialog box, under the "Play" tab, select "Speaker" and click "Set as Default" , then click "Configure".

4. In the "Speaker Installer" that is open, select "Stereo" in the "Audio Channel" and click "Test". The music is sent in the left and right speakers.

5, return to the "sound" dialog box, OK, the problem is solved.