Imac 27" 2011 gpu upgrade gtx880

[Nodryland1]

About a month ago I came to this form and the GTX 880 was a supported GPU to upgrade or modify I purchased this GTX 880 took a while to get all the parts to do the modification purchased another heatsink 3 pipe cuz mine came with the two pipe now I don't see the GTX 880 on the list was there an upgrade to the ROMs does that mean this GPU won't work about to start the installation and I noticed not a list thanks for any help

 

[Aesthetica]

https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/

Looks like its still there on the first post

 

[Nodryland1]

Thanks for some reason did not see it at first thank you very much