i found a solution just now, my speakerset is a Z313, and in the "controller" where you can manage the volume and turn the speakers on or off you can also plug in a headphone in it. so now i can easely switch between my headphone and speakers + i dont have that annoying sounds coming from the...
My headphone makes really soft but annoying noises when I plug it into the front audio ports, so I put it in the "line in" audio port in the back. (already tried switching the front audio ports/cable to the mobo but didnt work, probably something with the mobo itself) I also have a speaker set...