2011 iMac video replacement?

[Litsnsirn]

is there a list somewhere of which mxm cards you can use in a 2011 iMac, for machines that have the defective 6970m? I did a quick search and all that I was able to tell is that it has to have Apple firmware.

 

[FlorisVN]

is there a list somewhere of which mxm cards you can use in a 2011 iMac, for machines that have the defective 6970m? I did a quick search and all that I was able to tell is that it has to have Apple firmware.

I advise you to look at this thread :
https://forums.macrumors.com/threads/2011-imac-graphics-card-upgrade.1596614/