Ok. I have not been mining since April this year. I have Sapphire RX 470 4Gb. First reason was that Windows update that slowed down rig. So I figured it out. Now I have problem getting full hash with this card on windows 10. I keep getting 50% lower hash rate than it can give, around 13.8. Windows version is 17.03. I managed 3 months ago to get 27.4 just to see is it possible to mine with these cards. Then I had to format disc and now I don't know what drivers version was that and how to get full hash. With every driver I tried I get 50% less. Can someone give me advice with this? Someone still mine with this cards?