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AMD PowerPlay technology allows graphics card to vary performance based on demand, switching between performance and power saving. It has automatic operating modes based on predefined parameters It also allows user settings. Windows 10 and 11 can make a copy of these energy profiles in the...

December 2023 Note In this thread, SPPT string is taken to the OpenCore config.plist file. I've added another option that most of the time works better: taking the SPPT string to an SSDT file. Please visit the new thread, there you have the info that was here plus the new info added: AMD 6600...

I successfully installed Yosemite on my Acer Aspire S3 391 53314g52add. But sometimes, when I shutdown the system, the fans keep spinning. I used this guide: http://www.tonymacx86.com/mavericks-laptop-support/114040-guide-acer-s3-391-ivy-bridge.html Here are the kexts I installed with...