![]() But only for a short time compared to the time it was running before with no apparent problems. That is a failed AMD chip is heated to 120–200 degrees Celsius and thereafter shown off as a re-animated corpse. For an example of latent issues in the early stages see this post.īut most frustrating would be a common practice popularised on youtube and other sides: reflowing/baking the logic board. The problem starts with different symptoms and in different stages, some of them might be gone for a while, especially if everything else is unplugged, the fan speed upped to ~2500–3000 (almost inaudible for most people over 19 or so), air conditioned room, etc. That is because the issues can be indeed latent in the early stages. Investing into a used machine from 2011 with AMD chips inside is a bad idea unless it is really cheap. Above normal room temperature and really stressing the GPU with 3D rendering while a second monitor is plugged in (getting even more heat from the thunderbolt chips) is a surefire way to further shorten the lifetime of the AMD chips. All official Apple repairs were nothing more than swapping out the entire logic board and replacing it with the exact same thing, spec wise. ![]() ![]() This is because the the cooling system and the generation of and the vulnerability to heat of the AMD chips are mismatched. ![]() The failing GPUs in these units are all subject to failure in a timeframe most would call premature.
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