AMD CrossFire will only show up in the CCC if you are using an AMD CrossFire certified motherboard and power supply.
Other reasons that may cause the AMD CrossFire option not to show up in the CCC is if:
- Your power supply cable is not connected to the graphics cards – each graphics card requires its own external power 😉
- The motherboard firmware is out of date
- The BIOS settings are not set to enable AMD CrossFire
Finally, if the AMD CrossFire option still isn’t showing up, update the Catalyst Control Center to the latest version and try again.