RX580 and RX590 issue

[espinozaea]

I have recently installed an RX580 8GB and RX590 8GB in my PC to use for mining using betterhash. When I start the program I can see the cards seperately but when I start mining the Algorithm will indacte that it has to RX80's as miners. With that issue it brings my hash rate to 12 to 17 MH/s vs the 25 MH/s with just the RX580. What am I doing wrong.

Machine:
MB:ASRock B450M
RAM: 32GB (8GBx4) DDR4 3200
CPU: Ryzen 7 2700 @3.4GHz
SSD: 250GB
GPU1: RX580 8GB GDDR5
GPU2: RX590 8GB GDDR5
PSU:EVGA 850Watt