My rig have 5 GPU 280x. But when i run FAH, GPU1 running at 0% and stuck in that. Do you know how to fix it? Thanks.
First give it some time to update. Second my first 2 concerns you have 5 280x are your OS and bottlenecking.
To run the above without CPU bottlenecking you need at least a 6 core CPU. That and you need a Windows based OS, FAH isn't supported with AMD on Linux. Are all your other GPUs running and if so at what rate.