The first thing to look at is not the driver and audio interface, but to open the "Control Panel"-"Realtek high-definition audio Configuration"-"Audio I/O"-simulate the right-hand side of the plate as shown in Figure 1, to see the front of the tick is not correct, as shown in Figure 2.
(Figure 1)
(Figure 2)
The correct installation of the driver of the sound card, if it is a onboard sound card, it is best to install the driver provided on the motherboard driver disk.
(In fact, the computer is silent, often because the sound card is not properly driven.) Under normal circumstances, the sound card driver installed, in the lower right corner of the taskbar will have a small horn icon. )
Confirm that all cables are correct. Then the speaker power is turned on and the volume switch is turned on. , verify that the hardware is fine. You have said that the horn is OK, the sound card is OK, if you have been tested on other machines is really good, then you can continue to look down.
Third, if the driver is sure the correct installation, then look at the computer's volume settings. The specific method is: Double-click the small horn in the taskbar icon, in the pop-up "Volume Control" dialog box to see "Volume Control" and "waveform" two items are not to turn the volume to the minimum, or be set to mute state. If you do not have these two options in the dialog box, click the Options menu-select Properties-In the "show the following volume Control" select "Volume Control" and "waveform" two items, and then set correctly.
Tip: Only the driver for the sound card is properly installed before the fourth step is set.