Hi. So I bought 8 vega 56 to make a rig, thinking it would be no different than a 1080ti rig.
I can only get 5 cards to work on asus z270-a, the rest are not recognised, and sometimes a 6th comes up with problems in device manager only disappear at the next reboot. very strange.

Do you know what motherboard/driver etc can get 6+ cards running on windows ?

On linux I couldn't even boot with more than 3 cards, it would give me some pci express errors.

Also, what miner works with vega on linux with the 17.40 + rocm drivers ? or is there any way to enable old opencl for vega ?

Please advise. thanks.