I tried all audio devices.
Biostar support said to update the realtek hd audio drivers via internet. The one included in the dvd might be old.
---------- Post added at 02:00 PM ---------- Previous post was at 01:03 PM ----------
FINALLY
I found out if I switch my output in my sound card settings from Line 1/2 to S/Pdif, I get sound. It's funny because my headphones are plugged into Line1.