Hello! I am new here but have been tweaking my hynix cards for about a year now and just got a perfectly stable rx580 hynix bios that is currently running 29,5/MHS - 31/MHS depending on mem clocks, if you set mem to 2100 and core to 1150 you should see about 29 - 30 MHS. Power consumtion is around 90 to 95 for each card but you can tweak this more if you want to, i am happy with those settings though. Just reply to my inbox if you want the bios and i will send it to you. Kindest regards Xoide Smiley
EDIT: The cards is ASUS ROG-STRIX-RX580-O8G-Gaming