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.
