I have two graphics cards - AMD Radeon R9 270
Both work "independently" in either slot
When I put both cards in, one doesn't seem to register any activity when I go to CROSSFIRE mode
The benchmarks are horrible - and I can physically see the lag.
Windows 10 Educational 64-bit
Z97 PRO GAMER Motherboard
32gb RAM (4 - 8gb sticks) DDR3
i5 core (Socket 1150 LGA)