if u try with 5 gpus u get 2s/s for each
I've read above that only 4 gpus are limited for that miner (work properly). is that right?
No. I got 5 GPUs (280x):
[GPU 0] T=-1C A=-1% sols=8.661
[GPU 1] T=-1C A=-1% sols=9.085
[GPU 2] T=-1C A=-1% sols=9.525
[GPU 3] T=-1C A=-1% sols=9.068
[GPU 4] T=-1C A=-1% sols=9.763