Need help: MacBook Pro 2015 13’’ and Gigabyte Gaming Box 1070
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Need help: MacBook Pro 2015 13’’ and Gigabyte Gaming Box 1070  


New Member
Joined: 2 years ago

it’s my first time posting a thread on this forum so please point out if this is a stupid question. I just got an egpu (which is the gigabyte Gaming box 1070), an apple thunderbolt 3 to thunderbolt 2 adapter and a insignia thunderbolt 2 cable.
however the process is so painful and my egpu doesn’t work at either windows nor macOS High Sierra. So I really need some help. Thank you!
for macOS:

  • i did a clean install of macOS high Sierra 10.13.6
  • turn off sip
  • install essential command line tools
  • used the purge-wrangler script (option 2)
  • reboot, plugin egpu after login
  • external monitor shows a black screen and a cursor, nothing more

for windows 10 1803 bootcamp:

  • did a clean install of windows
  • install the boot camp drivers, reboot
  • plugin egpu (I tried plugin after login and during windows boot up as other threads suggested, same outcome)
  • egpu found on device manager as ms basic display adapter
  • download lastest driver form Nvidia website
  • get stuck at “preparing for install”

as you can see I’m really disappointed and frustrated, so any advice would be greatly appreciated.
thank you!

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


Estimable Member
Joined: 2 years ago

If you got the Basic Adapter to show up in Device Manager, then you're on the right path.  The only thing left is to download the Drivers from nVidia as below.  Go ahead and install the driver and app as well (it's what I did just earlier today).  Usually, once the drivers get installed, the Basic Adapter turns into your GPU.  In my case, it was a 1070 Ti.

Latest nVidia Drivers

If you need a guide for the whole setup, I recommend OliverB's build guide.  I used his guide even though he's on MBP's and I'm on a 2014 Mac mini:

1070 Ti: 2014 Mac mini / 2016 MBP 15"
Mini ITX Build in Dan A4 Case

2016 15" MacBook Pro (RP450) [6th,4C,H] + RX Vega 56 @ 32Gbps-TB3 (ASUS XG Station Pro) + macOS 10.14.4 & Win10 [build link]