I have it plugged in correctly, but I'll double check it to confirm it to absolutely mark it off.

*Update*
So I unplugged it, checked for bent prongs, any corrosion (Its a old motherboard), it...

Essentially the title explains the issue. I bought a new case b/c my old case's audio jacks went out. (I wanted to upgrade to a full tower anyways) Rebuilt my computer into the new case, audio in the...