Ok you installed the audio driver. And it shows up in windows that it`s working, the sound icon/ speaker symbol is showing.
Now down to your speaker setup 2.1 or 5.1.
2.1 speakers 1.5mm jack into the green colored input port on the back of the board.
Do not connect to the front two audio ports as they are used for headphones or mic and headset config.
If you have a audio control app other than windows, Ie a realtek audio app.
Then click on the device, speakers look down and there is an arrow.
click on it, now you can change the type of speaker setup there 2.1 to 5.1.
You must select the speaker type config from there.
Or you will get no sound ok.
If your using windows sound.
Right click on the speaker icon, and select playback devices.
Right click on speakers, make sure it is set as default playback device.
Right click and select configure speakers, make sure the right setup is selected for your speaker setup 2.1 quad, 5.1 7.1
select ok apply.
Again if you do not select the right speaker setup in there for the speaker set you have 2.1 if set to 5.1 you will hear no sound till it is set to that in windows.