Is there restrictions to mining cards per rig? I thought I heard it is for 1 or max 2 gpu's?
And one more vote for windows miner.
The code is written to support up to 16 GPUs, though I don't think most motherboards/BIOS's/operating systems can handle that many.
I have only tested it with up to 2 GPUs. If anyone is having issues running with more GPUs, I'd like to hear about it. If there are bugs in the miner preventing running with more GPUs I'd love to squash them.
I'm working on a windows version, but it will probably be a week or two before I have something to release.
There is a limit on how many GPUs are supported in ROCm. It has something to do with PCI atomics and is pretty much hardware based.
Any way we could use AMDGPU Pro drivers for Vegas with your miner in the future?