You need a 6 x GPU registry hack to enable Windows to see the 6th card. Ensure you use powered molex and powered USB3 risers. Nothing to do with ASrock H81-BTC... that mobo is legendary in the mining… (View Post)
I have a R9-390 and GTX980-Ti on the same machine. I have tried running Nicehash miner on it to mine only ETH (excludes all the other algo-coins) and the miner basically ran 2 x DOS windows, one wind… (View Post)