Question I can not put up the crossfire

[Mavis04]

Yo
I bought a motherboard Asus Q87M-E Crossfire with a graphics card RX560 and another RX580, I try to put to find an option to activate in the BIOS but I can not find in the utility "AMD settings" I do not propose to activate the "CrossFire". After several research I do not know what to do think you can help me that would be cool
thanks for the help you will give me

 

[bignastyid]

You can't crossfire an RX 560 and an RX 580.

 

[Mavis04]

Why this?

 

[bignastyid]

Because they are not crossfire compatible. You can only crossfire a RX 580 with another RX 580, same the with the RX 560. AMD stop supporting crossfire over different models a few years ago.
"AMD CrossFire™ Requirements
These are the requirements to enable AMD CrossFire™:

1. Radeon™ RX Series, Radeon R9 and R7 300 Series GPUs must belong to the same family model number. E.g. 2 x AMD Radeon RX 580 or 2x AMD Radeon R9 390." https://www.amd.com/en/support/kb/faq/dh-018#faq-AMD-CrossFire™-Requirements