[EFI Loader] Error 12 Fix in Boot Camp for Apple T2 Security Chip Macs (apple_se...
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[EFI Loader] Error 12 Fix in Boot Camp for Apple T2 Security Chip Macs (apple_set_os loader v0.5)  

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Albert Johannes
Active Member
Joined: 2 years ago

Hello all, 

I have a 2019 16inch base modal and an RX570 in a sonnet 350w breakaway developer box.

I play quite a bit of game in windows and using the egpu allows me to play Dota 2 in 4k and keep the CPU cool.


To get into Bootcamp with an AMD gpu on a 16 it is needed to do the "Port Dance".


As far as I've read the only egpu setups that work with AMD GPUs in Bootcamp and does not require the port dance is when using a Razer core X.


This method works reliably for me but is quite annoying, does anyone have an idea if it is possible by any chance to get past the port dance with a normal Sonnet dev box and AMD gpu?




Macbook Pro 16 2019 i7 5300m + Sonnet TB3 Breakaway-box 350w + MSI 570 8GB + Samsung U28E590D 4K

Active Member
Joined: 2 months ago


My setup is Macbook Pro 16, dGPU 5500M 8GB, eGPU RX 5700 XT 8GB and Razer Core X. But I have to do the Port dance either. I haven't found a solution yet for this. Beside that the eGPU works flawless. I am happy with it and have sold the GeForce RTX 2080 S (also because it doesn't work with Mac OS).


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.


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