I recently purchased a Mercury Juliet ATX case (mufg by Kobian) and a Biostar U8668D v7 motherboard. I am still waiting on my processor, but I am trying to have it all wired up by the time it gets here Wednesday. This is the first time I have ever done anything like this computer wise and everything was pretty straightfoward except for one thing. The case has front audio, mic, and USB connections. When I started to wire up the front audio connections, I noticed that the case had 2 ground wires, however, the motherboard only has one ground pin. I am guessing that one ground is for the mic and the other for the audio output, but really I have no clue. Any help would be greatly appreciated.
Here is a link to the users manual for the MOBO: