2011 iMac GPU Upgrade Now with Brightness and Boot menu - Absolutely Worth It!
My Patreon Link: / curtisgross
This video covers the start to finish upgrade of a 2011 iMac with a new gpu. you can choose from a k1100m k2100m k610m or w4170 w7100 for opencore brightness control as well as boot screens via vbios flash. The 765m 770m and 780m can also have boot menus now via vbios flash, but they do not support native macos brightness controls.
I also got the gpu upgrade working with MacOS Catalina 10.15.5, which is the focus of this video.
Full Set of Files: https://drive.google.com/drive/u/0/fo...
Guide: https://docs.google.com/document/d/14...
At the moment the k610m is around ~$14 on eBay, which is a screaming deal for upgrading your old 2011 21.5 inch iMac with a new GPU to get to Catalina.
