ASUS ROG Crosshair IV Extreme @ Bjorn3D
“The ASUS Crosshair has a long legacy of being one of the best high-end motherboards for AMD systems. One of the trademarks of the Crosshair series is support for multi-GPU. While the first and second generations Crosshair motherboards support Nvidia SLI, the third generation only supports AMD CrossFire due to chipset limitation.”