Question Audio ports and Motherboard swaps

[driste9]

I recently finished a build using a msi b450 tomahawk max motherboard. After going through the entire set up of the build and booting/installing I discovered that the line out for my rear panel audio only outputs sound to one side. I've tried everything I know how to do to solve this issue, reinstalling drivers, playing with the windows sound settings etc, but nothing fixed it. Does anyone have any ideas on what the issue could be.
EDIT: Front panel audio works just fine, only issues with the rear out

On a similar note, if I did have to replace the motherboard, and I swap it out with the exact same model, would I be able to just "plug and play" my existing ssd with windows and my programs installed into the "new" motherboard?

 

[Assassin007]

I believe your motherboard may need to be replaced and yes as far as I know they should work if you swap out