I do have a problem when I use MSI afterburner. At the point when I change the settings and get the black flicker in the screen cause to the change of settings, my hashrate drasticly drops to 4MH/s. After reboot and without changing settings It back to it's original 30MH/s
I run windows 10, Celeron G3900 CPU 4GB RAM. 20GB Pagefile already set.
This problem occurs on all the drivers, with R9 390 cards and RX480 cards.