2017 13" MacBook Pro [7th,2C,U] + RX 580 @ 32Gbps-TB3 (Zotac AMP Box Mini) + Win10 [itsage] // MBR vs GPT comparison  

• Disable PCI Express Root Port #9 - 9D18 in Device Manager

Has got me past error 12! Only problem now is I have no sound and the usual enable/disable speakers isnt working...

Edit: Disabling that port appears to be what is killing my sound. Although also having issues with installing the drivers as the install kills BT and Wifi half way through - something to do with not having the port enabled?

Edit2: Re enabled to install drivers, rebooted, error 12, thats cool, knew that, disabled again, rebooted, still error 12? Wifi and sound are currently working though...

Edit3: Tried some more rebooting and back to good ol' error 12... the only difference being I had no error 12 when the drivers were not properly installed, which leads me to believe it's something to do with them? DO drivers effect resources/allocation in the same way apple_set_os does?

I'm going to give this another bloody go... might even risk a new Bootcamp instal. I want one eGPU for both OS!

Ok, slow day at work so have managed ot get my head round getting rEFInd installed... where do I put apple_set_os in the rEFInd file structure?

Also, didn't manage to get the custom theme I made to work - mentioned that in its thread.

@eightarmedpet You would create a "custom" folder at the same level as APPLE, Boot, Microsoft, and refind. Then put the apple_set_os inside this custom folder. Here's the screen cap of file/folder path.

Cheers @itsage !

Thats worked... but sadly same issue as when using apple_set_os on a USB - my LG 5K stays black. Speakers work, and the mouse is there, but no picture.

Is it safe to just pull rEFInd folder out of EFI and trash it or do I have to run a script to work magic?

edit: reading the instructions it looks like its pretty time as I did a manual instal, not sure why the author claims its a bit complicated as removing is just reversing steps.

Do you see the LG Ultrafine 5K in Display settings? I assume both monitor and eGPU connected on the same side (same Thunderbolt 3 controller)?

To be honest I didnt check display settings as the mouse cursor was lost in the black... and yep, both same side, guess if I want to solve my AMD Bootcamp woes once and for all I need to change monitor - but then non are quite as nice as the Ultrafine....

Bought another 570... so I haven kicking about spare to test.

Did all these steps...

• Run DDU to uninstall all AMD and Nvidia drivers
• Disable PCI Express Root Port #9 - 9D18 in Device Manager
• Delay hot-plug RX 580 eGPU to the left TB3 port closest to the TAB key

and made a USB stick with Apple set os on it... STILL error 12?! Would not having a monitor attached make a difference? I'm not expecting my 5K to work so was just trying to get it working with the internal as my Nvidia cards did. Using the 570 is great in macOS...

Hello, do you know if it's possible to use external USB 3.0 monitors (such as Asus ZenScreen MB16AC) via the enclosure? Would it increase performance compared to internal screen?

Posted by: T430up

Hello, do you know if it's possible to use external USB 3.0 monitors (such as Asus ZenScreen MB16AC) via the enclosure? Would it increase performance compared to internal screen?

The ZenScreen MB16AC has two input modes - USB-C DisplayPort alt mode, and DisplayLink (can be used with USB-A or USB-C without DisplayPort alt mode). The ZenScreen MB16AC should perform as well as any DisplayPort display. Just use a USB-C to DisplayPort cable (using USB-C DisplayPort alt mode) connected directly to the DisplayPort of the eGPU's graphics card. Not all DisplayPort to USB-C cables work in that direction (they usually do USB-C to DisplayPort) so be sure you get a bidirectional cable. Moshi has a bidirectional cable that will even work with DisplayPort 1.4.

Avoid DisplayLink unless you have no graphics card ports left.