Take the video card out: not a supported configuration and thus voids the warranty...
Call WatchGuard: if you have a bad board and the box is still in warranty, they will replace it...
I suppose I could have been more specific with that portion of my answer. Considering I know nothing about your situation and level of expertise, it seemed a generic answer would have sufficed.
Oh well, IT has always been a thankless job.
You're welcome.