i have sennheiser pc 150s, and 2 stand alone mics, all of a sudden my mic stops working, i try switching it with my other ones, and still nothing, then i went to onboard, and i get sound, but barley any at all
Do your speakers work? And make sure that the mic is selected as your recording device - sometimes apps can for some reason switch your recording device.
Or your sound card is dying (possibly).