Thanks guys.  Nope they didn't tell me of any smell, not 100% sure but they woulda told me if there was burnt smell.  

Had them order another set of cards and a new mobo as well.  The rig needs the cards anyways and the mobo they can use on their next rig if both are still good.  Hoping its the mobo, taking a $700 loss on the cards would really hurt.