I have been mining ETH with a 6 card (RX 580 / RX 570 4 GB) rig using Pheonix miner on SimpleMining, I have been averaging about 30 MH/s for each card. I noticed on December 11th, the rashrate dropped to about 22 MH/s so I rebooted the rig. After the reboot, the average is only about 3 MH/s. I have tried adjusting the overclock settings and nothing seems to work. Any ideas what happened and how I can get back to a decent hashrate?
The best miner at the moment avoiding the ETH drop is lolMiner, other the drop down is much bigger...
You only need to add:
--4g-alloc-size 4072 in extra parameters
Well... but if it work try 4074, 4076 and 4078... until it stops - for maxing out epoch 382+ performance, later zombie mode will start slowly...