aufa333 1 Posted December 12, 2020 Posted December 12, 2020 (edited) am trying to install big sur & i've read pretty much everywhere that x99 is out of luck with this release, but there also some lucky users who got it installed, so i was hoping if someone of the more experienced with opencore to tell where to look, or how to debug ? below is my current efi along with the debug log from OC, if you need more info plz ask, thanx. setup asus x99-a II Intel i7-5820K RX 590 iMac 1,1 OC v0.6.4 efi.rar Edited December 12, 2020 by aufa333 Share this post Link to post Share on other sites