Recently replaced dead GPU and now my iMac restarts seemingly randomly
My mid 2011 27 inch iMac had GPU problems which I solved with oven baking the card but came back three months later. I opted to buy a replacement GPU purchasing a 109-C29657-10. I noticed some small differences with the text on the card but I figured that was a newer revision of the card. Installation went well but after reassembly my iMac fails to stay powered long enough to boot to macOS. If I boot into recovery mode it can stay on for hours but the moment I try to boot into macOS it power cycles. I have taken it apart and put it back together multiple times. I am at a loss. Any help is appreciated thank you!
Update: Sadly purchased a bad GPU off ebay. Resorted to re-baking my old one and it fixed it for now.
Ist dies eine gute Frage?