New
#11
When In Doubt, Read The Manual
All,
After spending several hours of "no sound 5.1 troubleshooting", I looked at the manual for my new P8Z77-V motherboard and noticed the plugs in a different pattern. Instead of "3 in a row of "orange, black, gray", it was "orange, black, green". The "gray plug" goes in the "green port".
Now I have perfect sound.