rekkisomo Posted September 9, 2018 Share Posted September 9, 2018 (edited) Hey Everyone! I'm currently getting an error on both a clean and upgrade install of MacOS High Sierra (latest). I've asked on Tonymacx86, as well as doing *a lot* of research on this error, however nothing has given me a long term solution, but I have managed to boot with the discrete GPU enabled. When booting with the discrete GPU enabled, it boots fine but I have graphic issues (black/white bars on screen updates, no blur transparency) and in "About This Mac" it does not say my GPU name, and a very small MB size. Everything works in Sierra, even with High Sierra updated kexts and SMBIOS. I even tried a clean install of Mojave Beta (with appropriate kexts), as expected that wouldn't work by a long shot. Here's my specs: Motherboard: Pegatron IPMMB-FM (Only found via research, could be incorrect, however most specs including bios is the same.) CPU: Intel Core i7-3770 GPU: MSI GeForce GT 640 3072 MB Memory: 16 GB 1600 MHz DDR3 SMBIOS: iMac14,2 Install Destination Drive: Hitachi HDS721010CLA632 Media (Rotational) Any help is greatly appreciated! Edited September 9, 2018 by rekkisomo Clarification Link to comment Share on other sites More sharing options...
garcia de moura Posted January 21, 2019 Share Posted January 21, 2019 The same thing here...no solution... (sorry my English) Link to comment Share on other sites More sharing options...
RagK Posted February 7, 2019 Share Posted February 7, 2019 I am not a Pro but i had same issue which i fixed by reinstalling macOS . Just Give it a TRY.. hope it works Link to comment Share on other sites More sharing options...
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