@toleda Thanks for the great guide!
Took me quite a few pages of this thread to find out why it didn't work initially for me.
- I reverted back to Multibeast SMBIOS for iMac17,1 instead of clover configurator generated one ( copied over serial number )
- I didn't add my Device-ID to Vendor10deDevice
- Loading the driver in S/L/E didn't fix my loading issues because of other errors
- InjectKexts in clover was on "Detect", changing to Yes and removing the patches for GFX0→IGPU since I run graphicsfixup.
Changing to "Yes" and keep it as a string seems to work fine. I guess since it has multiple options a boolean value would be incorrect.
- I didn't realise that iMac17,1 has different board IDs, this guide will work great if you just used multibeast.
So far performance doesn't seem to have improved much, slight clock increase. I would be curious if there were ways of unlocking the normal clockspeed of this card on macOS.
Hope this helps some other lost soul who didn't go through all the replies!