Noticed you hadn't had a reply on this and thought I would try to help. Had a paragon in the past. And have had issues with other games after moving them.
If I remember correctly, you should be able to test the sound from the sound board itself. Check to see if there is a red button on the sound board in the back box. Boot the game up and press that button to see if you get anything. Also, I would go back through and check your connections one more time.
I am working off of memory right now so I might be giving you some bum dope, but wanted to try to help...good luck with this...