Two new eGPU solutions on macOS 10.13.4: pure EFI and hybrid  

Quite annoyingly, the typical macOS components for 10.13.4-6 are not yet open sourced. Hope we see this soon. The 13.3 - 13.4 change was significant.

@itsage Thanks again for testing the windows side on the nMP 2013 but other than this approach, do you or anyone else know if there has been any successful results of windows with eGPU on the Mac Pro? I read on one post somewhere that a Razer Core X was successful?

@iculikemac There's little to no success for Boot Camp eGPU with the nMP trashcan. The only reports of such setup is through firmware modifications done through Netkas/MacVidCards. Unfortunately I don't have good news with EFI solution on the trashcan either. I tried booting up with different configurations (advised by @goalque). Some caused boot hangs and others crashed the system. The few times it managed to fully boot there was no sign of the eGPU. For now the trashcan can use eGPUs with macOS only via our solutions.

I have good news with the 2018 15" MacBook Pro. EFI solution works great once you disable Secure Boot and allow external booting source. I could use both Nvidia eGPUs and older unsupported AMD eGPUs. In one configuration, I got an R9 Fury X running alongside, GTX 1080 and RX 480 eGPUs.

@itsage That's awesome! Maybe round it off with yet another eGPU plugged in, making 6 GPUs on the system. I tried with the existing patches in the script and it works w/ hot-plug as far as I can tell (displays and all).

@itsage Great testing! I'm hopeful now and thinking maybe I can finally get 3 x eGPUs working on the 2013 Mac Pro...

@goalque Seeing the possible good results with the new version (particularly, and in a hopeful manner for the 2018" 15 MBP on Bootcamp), is there a release date for the latest version @itsage tested?

Posted by: Fernando Cuello

@goalque Seeing the possible good results with the new version (particularly, and in a hopeful manner for the 2018" 15 MBP on Bootcamp), is there a release date for the latest version @itsage tested?

I believe he said after Mojave and the associated NVIDIA drivers are released. That just avoids a lot of extra pain for all the issues that might be encountered. There may not be any surprises, but you never know, so I think he's got the right idea to wait until it is out and tested since it is so close.

Yep. Waiting for 10.14 public release and "official beta" drivers from NVIDIA that follow. I agree it makes good sense.

@itsage - thanks very much for that info, appreciate it. Such a pity!

… just wanted to ask whether anyone's tried this yet on an iMac 5k or iMac Pro? I could be willing to try it, but I'm a little unclear about how this script works and what it does to the system… Once I've loaded the script, would I need to boot from an external hard drive every time I start up? Would I be able to put the Mac into sleep mode with my egpu attached? or does it crash the system like the macOS-eGPU.sh script?

I'll probably wait until after the official Mojave release on Sept 24th before testing, but I'm keen to get my 1080TI going for Redshift render on my iMac Pro…