Asus Crosshair V Formula/ThunderBolt - Manual (Page 183)

ROG Crosshair V Formula 5-1
5.1 ATI ® CrossFireX™ technology
The motherboard supports the ATI ® CrossFireX™ technology that allows you to
install multi-graphics processing units (GPU) graphics cards. Follow the installation
procedures in this section.
5.1.1. Requirements
• You should have two identical CrossFireX-ready graphics cards or one
CrossFireX-ready dual-GPU graphics card that are ATI ® certified.
• Ensure that your graphics card driver supports the ATI CrossFireX technology.
Download the latest driver from the AMD website at www.amd.com.
• Ensure that your power supply unit (PSU) can provide at least the minimum
power required by your system. See page 2-25 for details.
5.1.2. Before.you.begin
For ATI CrossFireX to work properly, you have to uninstall all existing graphics card
drivers before installing ATI CrossFireX graphics cards to your system.
To uninstall existing graphics card drivers
1. Close all current applications.
2. For Windows XP, go to Control.Panel.>.Add/Remove.Programs.
For Windows Vista, go to Control.Panel.>.Programs.and.Features.
For Windows 7, go to Control.Panel.>.Programs.>.Uninstall.a.program.
3. Select your current graphics card driver/s.
4. For Windows XP, select Add/Remove.
For Windows Vista and 7, select Uninstall.
5. Turn off your computer.
• We recommend that you install additional chassis fans for better thermal
environment.
• Visit the ATI Game website at http://game.amd.com for the latest certified
graphics card and the supported 3D application list.