System specs
- Mac Pro 2013, Xeon E5-2667v2, Dual D300, Vega64, macOS 10.14.6, *Windows 10
eGPU hardware
- Razer Core X, Apple Thunderbolt 3 to Thunderbolt 2 adapter, Apple Thunderbolt 2 cable
Installation steps
- Installed the Vega64 inside the enclosure
- DO NOT CONNECT THE ENCLOSURE TO THE Mac Pro
- install Purge-Wrangler script
- after ReBoot : connect the enclosure to one of the BOTTOM TB2 ports
- eGPU is fully recognized and running flawless
Benchmarks
- Geekbench5, OpenCL 51423 ( https://browser.geekbench.com/v5/compute/1120535 )
- Geekbench4, OpenCL 141314 ( https://browser.geekbench.com/v4/compute/4849680 )
Comments
Building this combination in first to improve gaming expirence in windows.
I have installed windows before on an seperate ssd connected to usb3 and it was always easy to switch inbetween, as long as the eGPU enter the game.
the last 1909 version of windows of course produced the one and only "error12", but solving it by free up some resources.
getting an 1803 image file and installing it on the mac pro was a hell, because the mac was not responding after i select the bootstick with windows installation.
i have several machines here and tried as far as every combination : external and internal installation on a dell t3500, mac pro 5,1 and acer subnotebook, writing the disk image direct with WinToHDD...
nothing helped and the mac pro 6,1 was always runnning into a bootloop.
finally i tried a last installation inside the subnotebook and got a working installation of 1803.
the happieness was just short term, after i installed the bootcamp drivers, windows refused to start and end up in a bootloop as well.
i can start in "safe mode", but i found no reasonable answer why and what cause the bootloops...oh, and the eGPU is never connected yet under windows.
four days are gone now, so every help would be appreciated, before i get rid of that enclosure+gpu and spend my time with more important things. 🙁
Mac Pro6,1 - E5-2667v2 - Dual D300 + Razer Core X'ed Vega64
2013 Mac Pro (FP D300 x2) [3rd,8C,E] + RX Vega 64 @ 16Gbps-TB2>TB3 (Razer Core X ) + macOS 10.14.6 [build link]
@jorg_henninges, Thank you for sharing this build. The Mac Pro 6,1 is one of the trickier systems to set up in Boot Camp. Keep reading others' build guides and see if there's a procedure that works for you.
• external graphics card builds
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2021 15" ASUS TUF Dash F15 [11th,4C,H] + RTX 3080 @ 32Gbps-TB4 (AORUS Gaming Box) + Win10 2004 // my 3rd RTX 3080 build [build link]
@itsage, i avoid any bootcamp installation and always tried a seperated, even the first time "nativ" from usb. i guess its always called "boot camp" when you talk about windows on a mac... 😉
nevermind, i think i have to spend more hours to read all the posts then. 
Mac Pro6,1 - E5-2667v2 - Dual D300 + Razer Core X'ed Vega64
2013 Mac Pro (FP D300 x2) [3rd,8C,E] + RX Vega 64 @ 16Gbps-TB2>TB3 (Razer Core X ) + macOS 10.14.6 [build link]