I recently installed this motherboard together with a Ryzen 2600X. You can use the graphics card without any problems, but you cannot run the Ryzen 5 3600 on it as long as the BIOS does not correspond to version F40.

https://www.gigabyte.com/ch...

If you have an old processor from the 2000 series, you can update the mainboard BIOS to the F40 version and install and use the 3600. Otherwise it won't work. My B450 I bought a few days ago still had the F5 version installed on it. So no Ryzen 3rd Gen support.