can this give us some ideas ?
https://9to5mac.com/2017/01/18/hand...e-apple-2016-macbook-pro-thunderbolt-3-video/
Configuring the Node to work with the 2016 MacBook Pro
Note:
Please back up your macOS installation and any files you need before proceeding. I don’t anticipate any major issues, but when you’re modifying system files, anything is possible. You have been warned.
Step 1: Install the GPU properly inside the Akitio Node. Be sure to connect the PCIe 6+2 pin connector if needed.
Step 2: Connect the GPU to an external display. (At this juncture I’ve only been able to get 4K working at 60Hz via DisplayPort. The RX 480 features dual HDMI 2.0 ports, which should work at 4K @ 60Hz as well. I’m still investigating this).
Step 3: Shut down macOS and disconnect everything from your MacBook Pro
Disable System Integrity Protection
Step 4: To disable SIP, reboot your MacBook and hold Command (⌘)+R until you see the Apple logo. This will cause your Mac to boot into recovery mode.
Step 5: Click the next arrow button on the welcome screen, and in the menu bar, click Utilities → Terminal.
Step 6: At the Terminal Prompt type: csrutil disable; reboot and press Return on your keyboard.
You MacBook Pro will reboot back into macOS’ normal mode.
Note:
Once you run the script below, you may re-enable System Integrity Protection if you wish.
Using goalque’s automate-eGPU script
GitHub user
goalque has created an easy-to-use script, which was just recently updated to include AMD Polaris & Fiji support for macOS. This script modifies the necessary kernel extensions to support the GPU used. It also automatically downloads Nvidia web drivers for those utilizing compatible Nvidia GPUs. This script is great, because it makes it so that users don’t have to go tinkering with plist values in /System/Library/Extensions/ to make the needed modifications.
Step 7: Connect the Akitio Node to your MacBook Pro via the included Thunderbolt 3 cable, and power it on.
Step 8: Open Terminal and type the following commands to download and execute the script:
curl -o ~/Desktop/automate-eGPU.sh
https://raw.githubusercontent.com/goalque/automate-eGPU/master/automate-eGPU.sh
chmod +x ~/Desktop/automate-eGPU.sh
cd ~/Desktop
sudo ./automate-eGPU.sh
Enter your password when requested and press Return.
Here is what your terminal should look like once the script has completed:
Of course, depending on the GPU you decide to use, the
Detected eGPU and
Nvidia web driver section may be different. If you wish to uninstall the automate-eGPU changes, simply use the flag -uninstall.
Step 9: Close all apps and Finder windows and shut down your MacBook.