So possibly sooner or later all Mac Minis with a HD 6300M might fail? They say "Production faults of the AMD graphics chip in the Mac Mini Mid 2011 have become known" (“ Bei Mac mini Modellen aus Mid 2011 wurde ein Fehler in der Produktion von ATI AMD Grafikchips bekannt.“) I hope it really was just overheating and my machine is fine now – but this is scary: I found a german company (smartmod) which offers a special repair service for the Mac Mini 2011 with Radeon HD 6300M video issues. ![]() Since cleaning from dust (8 hours ago) I had no more video issues so far although I had a permanent load on the GPU (Unity 3D) all of the time and even ran GPU benchmarks to provoke the issue. I've cleaned the Mini from dust with air (if you do that you should block the fan with one finger otherwise it may generate power which can damage the logicboard) and set higher base RPM for the fan with smcFanControl (3300 RPM). Some minutes later the it showed video issues again but I could do a regular shut down. After a short pause and a restart the GPU temperature was still way too high (80☌). ![]() Today the screen went pink with vertical stripes and my Mac Mini freezed. I had the same issues here (Mac Mini 2011 2.5GHz).
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