Thanks Zebulon! Any chance for you to update somewhere the two kext folders?
EDIT: My problem is way before graphics. Clover seems not to recognize my cpu 6900k. I'm curious about JoeHidden's EFI folder too, since he has my same setup (motherboard and cpu).
JoeHidden: Can you upload EFI folder and your bios profile? To save a bios profile, insert a FAT formatted usb drive, enter bios (Del) go to Tool\ASUS Oveclocking Profile select "Load/Save Profile from/to USB Drive", press F2, insert the name of your profile and select OK. Your_BiosProfile.CMO will be saved on the USB flash Drive. Thanks in advance.
PS: which bios version are you using?