Quote Originally Posted by Random Murderer View Post
The only way would be to put the Xense in the x1 slot, which would require the bottom-most 680 to have a single-slot cooler(pretty much the only way that'll happen is if you're watercooling).
Otherwise, you'll have to put the Xense in x16 slot 5, which will reduce your 680s to x16/x8/x8.
Thanks Random Murderer for the very quick response.
I should have explained that the cards all have water blocks fitted.
I have looked at the x1 slot but there is not enough room as the cards take up two spaces due to the double size backing plates.
This means the sound card will fit on the board but the rear of the card hits the card in slot 4.

Do I have another option for a sound card?

Or will in not see much of a decrease @ x16/x8/x8