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I'd LOVE to have a native macOS client for Overwatch. Since I upgraded to a 2019 16" MacBook Pro, my eGPU no longer works in Bootcamp due to the dreaded Error 12 and I can't resolve it. My eGPU works flawlessly in macOS. Plus, I hate using Windows and want to avoid it if at all possible.

discuss

oneplane|5 years ago

You can fix Error 12 by using an eGPU loader in UEFI (you can just put it on a USB drive). The problem is that Windows sets the PCIe address space wrong and then it can't properly talk to the GPU anymore. It happened during one of those large Windows feature updates last year. You can find setup and documentation on egpu.io, goalque is the author. (it's called something like automate-eGPU EFI)

alexgaribay|5 years ago

Thanks for the suggestion but I've already tried that and many other reported possible fixes that didn't work in my case.