Front port makes beeping noise

[Sacra]

Hey guys!
So recently my front-panel jack port has been making an intermittent beeping noise. I have tried different headphones(excludes being a headphone problem), and tried them on the back port(the mobo one). The mobo port is fine, makes no noise.
What could it be, and how could I fix it?

 

[i7Baby]

Check the line from the mobo to the jack. Replace the jack if you can't fix it.