Assuming that you have the necessary equipment to make use of this new CrossFire technique, installation is very simple. Install both boards, power them up, then start up your system. Windows will automatically pick up the second video board since it is using the same driver set that is already in use, but make sure to do a system reboot after the second video board is loaded. Since the second card isn’t picked up until the Catalyst drivers are already running, it requires this reboot to allow it to make use of this second board in a CrossFire setup.
After the reboot you should see a new menu choice within the Catalyst Control Panel labeled “CrossFire”. Simply put a check mark in the “Enable CrossFire” box in the window on the right and Windows will work with the driver set to start your graphics in a CrossFire mode. Another reboot is not required at this point since the system will already be properly configured to make use of the second video board.
For clarification, your monitor will need to be plugged into the primary video board, which is the one in PCI-E slot #1 on your system. In simpler terms, plug the monitor into the board that would be used in a single board setup.
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