AMD 4800 User Guide - Page 15

Chapter 2 ATI CrossFireX Technology ATI CrossFireX Introduction ATI CrossFireX technology harnesses two or more GPUs (graphics processing units) to be used in a single computer to run up to 2 displays, creating a highperformance gaming platform. Typically, setup involves 2 or more graphics cards, but with the appropriate motherboard, the technology can use a single card and the built-in GPU of the motherboard. ATI CrossFireX works with all 3D games and applications. Note: The ATI Catalyst Control Center software contains a different ATI CrossFireX user interface for each configuration type and automatically loads the appropriate one when a valid ATI CrossFireX configuration is detected in the system. If ATI Catalyst™ A.I. is enabled in the ATI Catalyst Control Center software, the optimal rendering mode available for the application is automatically selected. Installing ATI CrossFireX Graphics Cards These instructions assume that a PCIe® graphics card has already been successfully installed in the secondary slot (slot one), and that the primary slot (slot zero) is empty. Note: Consult your system builder or OEM to ensure that your system has an adequate power supply. A 550 watt or greater power supply is recommended. For an up-to-date listing of ATI CrossFireX certified motherboards, see ati.amd.com/products/certification 1. Make sure the computer, monitor, and other peripheral devices are off. 2. Unplug the computer power cord and disconnect the monitor cable from the back panel of the computer. Caution: To avoid possible damage to the motherboard, wait approximately 20 seconds after unplugging the power cord before disconnecting a peripheral or removing a component from the motherboard. 3. Remove the computer cover. If necessary, consult the computer manual for help removing the cover.