As it's already been stated. You paid for a guaranteed 8 card mobo package. If you didn't buy this, would you have had any clue on the correct motherboard to purchase to run 8 cards? People ask here ALL the time on how to get x cards working on y motherboards, and most of the time it's just not possible. People see 6-8 PCIE slots and just assume it'll work, but in now way does it work like that.