ASRock B75M Quick Installation Guide - Page 20

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® XP OS: A. AMD recommends Windows® XP Service Pack 2 or higher to be installed (If you have Windows® XP Service Pack 2 or higher installed in your system, there is no need to download it again): http://www.microsoft.com/windowsxp/sp2/default.mspx B. You must have Microsoft .NET Framework installed prior to downloading and installing the CATALYST Control Center. Please check Microsoft's website for details. 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 "AMD 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). English 20 ASRock B75M Motherboard