Chapter 2

Chapter 2

ATI CrossFireX

ATI CrossFireX Introduction

ATI CrossFireX technology harnesses two or more GPUs (graphics processing units) to be used in a single computer to run a display, creating a high- performance 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.

ATI CrossFireX is designed for optimal use on a single display; however, it is also possible for each GPU in an ATI CrossFireX configuration to individually drive their own monitors when ATI CrossFireX support is not enabled.

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 your 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.

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AMD HD 3800 manual Chapter ATI CrossFireX, ATI CrossFireX Introduction, Installing ATI CrossFireX Graphics Cards