![background image](http://html1.mh-extra.com/html/amd/ati-radeon-hd-4800-series/ati-radeon-hd-4800-series_user-manual_2921757018.webp)
3.
Select the
Enable CrossFire™
check box.
4.
If your system has more than two ATI CrossFireX-capable graphics cards,
the Selecting a Slave GPU dialog appears where you must select the graphics
card that will partner with the Master GPU.
Note:
Enabling ATI CrossFireX for the selected graphics card
automatically disables GPU Accelerated Physics for that same card.
12
ATI CrossFireX Technology
ATI Radeon HD 4800 Series
©
2008
Advanced Micro Devices, Inc.