Computer case front speaker wiring question?

[ingeborgdot]

My computuer case front speaker wiring is listed as such:
mic in-, ground, spkout r, return r, mic bias, spkout L, return L
My motherboard wording is as such:
1.mic, 2. gnd, 3. ref, 4. power, 5. front audio r, 6. rear audio r, 7. reserved, 8. no pin, 9. front audio L, 10. rear audio L
I know mic in matches 1. mic, and ground-gnd, but what do I match up on the others? Help.

 

[waynejkruse10]

Gee, thats tricky, why dont all the manufacturers do the wiring the same way. I think you need someone with electronics knowledge.