Chosen Solution
Yes, I know my poor iMac is ancient at this point but, I’m hoping to give it just a little more life anyway. I’ve been told by apple that the graphics card is on it’s way out. It’s been slowing down and choking on my Adobe programs. I was blaming the hard drive but that apparently wasn’t the issue. I don’t know anything about the inside of an iMac - does anyone know if the NVIDIA cards are replaceable? If they even come out? I guess my next question is IF it’s removable, is there anything compatible that I can upgrade to? If not, I’d be just as happy getting a refurb if anyone knows where they still exist. Sorry for what might be obvious questions - I just don’t know much. I DO know that the above model, and EMC #’s are correct. I’ve confirmed them on the bottom of the foot and checked that my version does, in fact, have the NVIDIA not the ATI that some models of the same year had. Thanks so much in advance!
Apple created two versions of the logic board. One with a NVIDIA GeForce 9400M graphics processor that shares memory with the system or an ATI Radeon HD 4670 with 256 MB of dedicated GDDR3 memory. The ATI Radeon HD 4670 would be a better logic board to get.
What can you upgrade to if you already have the ATI Radeon HD 4670? I have a Late 2009 21.5"