Go to -> Performance -> Tuning and right window set CUSTOM.
Then Fan Tuning -> Enabled / Advanced Control -> Enabled
You can check Fan Speed/Temperature , don't forget to APPLY CHANGES (You can save/load profile!! also could
F.T. and A.D. Disabled to go back. When You play games and/or high GPU software, it will need to CUSTOM Your Fan Tuning. After a GPU crash also check back!!
EDiT: oh by the way... (REAL BAD).. last Driver for RX 590 is 24.3.1... do not try newest!!!