Hi everyone! I want to use 9 monitors as one screen. So I bought 3 quantities of Asus HD7850 GPU. I'm able to use all of them at the same time. But I couldn't set up eyefinity. I'm using MSI Z77A-GD45 Thunderbolt mainboard , 2x 4GB DDR3 1333mhz Kingston Ram, Intel i5 3470 CPU and 3x DisplayPortToDVI active converters which are plugged into each GPU. This s not for gaming, I will build up video wall. Please help me.