So i have a melt down with the first system. It had gigabyte h110-d3a and corsair hx1000i that got damaged. Came home and system was returning zero btc and so I replaced the damaged parts with me I z270 gaming m5 and two seasonic 850 gold plus psu's. Reinstalled windows and all drivers. Did the Nice hash benchmark and it showed no problems. Once nicehash started working after 4 hours of benchmarking there was no return in btc.
I used msi afterburner to overclock. Setting I picked were -30 on power, +100 on core, +550 on memory. These cards have micron memory chips. What should I check to find the problem now?
Bitcoin mining is extremely competitive given the very low electricity costs in places like China and much harder to make money than in years past. Maybe you could apply your hardware to mine one of the alt coins such as XMR or Aeon. Also there is a mining subforum on BCT where you an pose your question of the best crypto currency to mine for your hardware setup.