2 Is it possible to upgrade the GPU in an iMac 27" 5K (Late 2014)?
I think this question has already been answered, but the answer provided is 7 years old. So, I'm not sure if times have changed and that this may be possible now. I have a late 2014 27" 5K iMac with an AMD R9 295x with 4gb. Using a temp sensing app, I notice that the GPU temp while playing games are constantly over 100 degrees C, even with the cooling fan running at 2700 rpms. I checked the air vents at the bottom of the computer and found them to be completely clogged. Using compressed air, I cleaned out all of the vents. Everything (CPU, HD, etc.) are all running much cooler now, but my GPU is still getting over 100 degrees C. I know iMac's run hot, but it seems that it gets so hot that the computer shuts off. I can play a game for roughly 10-20 minutes and then the computer just shuts down. No error messages. No blue screens. Nothing. Just powers down. I was planning on opening the computer and doing a full internal cleaning and inspecting the heat sink for the GPU (if it has one). I was going to clean and replace the thermal paste and put everything back together. Since I was going to be opening the computer, I was curious if the GPU could be upgraded from the AMD R9 295x. If not, I may just replace it as I do not know if it has been damaged from long term high heat. Anyone have any thoughts about this? Is this a good plan? Am I wasting my time? Thanks for any assistance!
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