I have this tower (the one in the pic isn't mine).
As you can see from the front, it has a Line in/out. I have always had to use these bloody jaks at the front. Decided to buy decent speakers, so now I need the motherboard jaks to work (as they support 5.1). However, the line out on my motherboard never gave me anysound. So, I unplugged what seemed to be coming from the front panel, all the small wires from the motherboard part labeled FP_AUDIO. However, that did not sort the problem, the back line out still doesn't work, but the Line in does.
I've installed the latest soundmax drivers and all that to no avail, anyone know what to do?