ASRock Fatal1ty X79 Champion Quick Installation Guide - Page 42

2.7.2 Driver Installation and Setup Step 1. Step 2. Power on your computer and boot into OS. Remove the AMD drivers if you have any VGA drivers installed in your system. The Catalyst Uninstaller is an optional download. We recommend using this utility to uninstall any previously installed Catalyst drivers prior to installation. Please check AMD's website for AMD driver updates. Step 3. Step 4. Step 5. Install the required drivers to your system. For Windows® 7 / VistaTM OS: Install the CATALYST Control Center. Please check AMD's website for details. Restart your computer. Install the VGA card drivers to your system, and restart your computer. You will find "AMD Catalyst Control Center" on your Windows® taskbar. AMD Catalyst Control Center Step 6. Double-click "ATI Catalyst Control Center". Click "View", select "CrossFireXTM", and then check the item "Enable CrossFireXTM". Select "2 GPUs" and click "Apply" (if you install two Radeon graphics cards). Select "3 GPUs" and click "OK" (if you install three Radeon graphics cards). Select "4 GPUs" and click "OK" (if you install four Radeon graphics cards). English 42 Fatal1ty X79 Champion Series Motherboard