imac 2010 k3100m

[serginio]

hi, please tell me someone is running imak 27 2010 11.1 together with gpu k3100m
I recorded the bios k3100m for imac and it does not work correctly, there is no boot screen and shows high siera after loading.
bootrom 63.0.0.0 maybe this is the reason, but it’s not possible to update
can someone tell me how to make them work together?

 

[vkd]

Have a look at the first post of this thread, you'll have to flash the GPU BIOS, everything is explained:

2011 iMac Graphics Card Upgrade

iMac 2009 to 2011 MXM3 graphics card upgrade (Lastest update 10/13/2023 - this is the official documentation page - you found it finally!) This is the single and only documentation post. During the last years we constantly updated this post to reflect the lastet development of vBIOS and OCLP...

forums.macrumors.com

 

[serginio]

Of course, I flashed the BIOS K3100M_BFR.rom with the programmer needed for my memory model
,I read the forum and people wrote about this problem, but I couldn’t find a solution.
This k3100m works well on iMac 27 2011, but 2010 there is no boot screen.

 

[vkd]

Of course, I flashed the BIOS K3100M_BFR.rom with the programmer needed for my memory model
,I read the forum and people wrote about this problem, but I couldn’t find a solution.
This k3100m works well on iMac 27 2011, but 2010 there is no boot screen.

No boot screen? If that's the only fault, its not such a big deal.