Hello,
i'm new to mining with GPU mining rigs. I bought me a mining rig and now im running nbminer with 4 GPU Graphic cards.
i've installed windows and task manager show me all the graphic cards are there and activ.
I think this mining rig it's still good no matter if it's a used one, i didn't build it by my own.
Now i wan't to start mining ravencoin but i'm always getting the same error message, i made a picture to show you guys to help me out so i can finally start mining.
https://ibb.co/qymyRV4https://ibb.co/qymyRV4