Youtube has no voice but the music continues just fine?

Problem Solved!

In the end the culprit was the headphone, it is a zalman 5.1 but something was wrong with the inside cables perhaps it was cut or something and in 5.1 it was not producing sound while the 2.0 was doing just fine.

I figured that out after trying another zalman 5.1 I had laying around ... it was beat up but still working properly, also tried a home theater 5.1 to make sure.

Does your sound card driver have a control panel with a vocal removal or karaoke setting? If so, make sure it's turned off.

It might look like this:

(The manual for your motherboard shows a very similar audio manager program on page 103, although it doesn't mention the Sound Effect tab in detail.)