second GPU disabled?

[Mongolete]

Today i wanted to do a crossfire with a old carn and my new gpu and i cant crossfire, there is no option and GPU 2 has no usage.

GPU1: rx 480
GPU2: r9 290x

 

[TechyInAZ]

That's because CrossfireX does NOT support different GPUs in CFX. You need the exact same GPU model in order to use crossfireX.