What should be the intensity, worksize and threads for an RX 580 4GB?
For cryptonight? Threads and worksize should be 2 and 8. Intensity try 112.
sorry, I miss where GGS has such a setting?
You go to the Devices tab.
Somewhere in the middle you will see the settings for all the different Algos.
Thanks - located, changed and that's solved my problem with some cards not started, By default all cards had different setttings
As for Crossfire - still wasn't able to locate it, but I remember atikmdag-patcher addresses this problem.
Thanks all who had tried to help, your advice were helpful!