Can't get eGPU to work in Windows Bootcamp
 
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Can't get eGPU to work in Windows Bootcamp  

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Jackson Patenaude
(@jackson_patenaude)
Active Member
Joined: 2 years ago
 

So thank you to everyone that helped me with downgrading my Windows build. I'm now at 18362.30. However, I still am getting error 12 in my device manager, with zero output to my external monitor. I've tried DDU, and installing the latest (September) drivers from bootcampdrivers.com . I have the 2019 Macbook Pro with 2 Thunderbolt ports, and I have an RX 5700XT hooked up to a sonnet breakaway box. The eGPU works perfectly fine in the latest beta build of MacOS Catalina. Thank you!

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2019 MacBook Pro i5 1.4GHz, 2 Ports
Radeon RX 5700XT
Sonnet Breakaway Enclosure.


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itsage
(@itsage)
Founder Admin
Joined: 5 years ago
 

@jackson_patenaude Not all Macs can work with eGPU in Boot Camp mode through hot-plug. I would recommend trying timed hot-plug by connecting the eGPU to your 2019 13" MacBook Pro as soon as you see the Windows logo with spinning circles.

 

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Jackson Patenaude
(@jackson_patenaude)
Active Member
Joined: 2 years ago
 

@itsage

Yea, I just tried this and it didn't work. Thank you though.

2019 MacBook Pro i5 1.4GHz, 2 Ports
Radeon RX 5700XT
Sonnet Breakaway Enclosure.


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joevt
(@joevt)
Noble Member
Joined: 4 years ago
 

@jackson_patenaude Disable some devices in Device Manager? But that did not seem to be necessary in the following similar builds:
https://egpu.io/forums/builds/2019-14″-macbook-pro-intel-iris-655-8th4cu-rx-5700-xt-32gbps-tb3-razer-core-x-win10/
https://egpu.io/forums/builds/2019-13-macbook-pro-8th4cu-rx-5700-xt32gbps-tb3-netstor-hl23t-plus-win10-1903-itsage/

Mac mini (2018), Mac Pro (Early 2008), MacBook Pro (Retina, 15-inch, Mid 2015), GA-Z170X-Gaming 7, Sapphire Pulse Radeon RX 580 8GB GDDR5, Sonnet Echo Express III-D, Trebleet Thunderbolt 3 to NVMe M.2 case


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Josh Girvin
(@josh_girvin)
Active Member
Joined: 2 years ago
 

I'm having the same problem. I think perhaps I'll need to go through the "Large Memory" hack process, as every other thing I've tried (using my 2016 non-touchbar 13" MacBook Pro with a Razer Core X and a RX480) has failed: I always get Error 12 no matter what, even running .30

The worst part is, yeah, it works *perfectly* in macOS, but Catalina has basically broken gaming in macOS entirely by removing 32-bit support: most games will never see an update to fix this, sadly.

I'm at a loss, and have a brand-new, $480 AUD paperweight 🙁

2016 13" non-TouchBar MacBook Pro, Razer Core X, AMD RX 480 -- and an error 12 I can't seem to fix


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Eightarmedpet
(@eightarmedpet)
Famed Member Moderator
Joined: 4 years ago
 

@josh_girvin

I think I just replied to you on reddit, but incase you a different person - you need to be on an earlier version of Windows as per the notification at the top of the forum page. 1903.295 is all good, and I run 1809 on my Macbook.

2017 13" MacBook Pro Touch Bar
GTX1060 + AKiTiO Thunder3 + Win10
GTX1070 + Sonnet Breakaway Box + Win10
GTX1070 + Razer Core V1 + Win10
Vega 56 + Razer Core V1 + macOS + Win10
Vega 56 + Mantiz Venus + macOS + W10

---

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2018 Mac Mini [8th,6C,B] + RX 580 @ 32Gbps-TB3 (AKiTiO Node Lite) + Win10 20H2 [build link]  


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Josh Girvin
(@josh_girvin)
Active Member
Joined: 2 years ago
 

@eightarmedpet

Yep, that’s me!

Figured I’d post here too for reference: I got past error 12 for a split second disabling PCI-e #9 and #10 after moving to 1903.295, but then it fell over again.

Doing some more research, I think I have to attempt the DSDT override, which I’m giving a crack tonight. What I’m confused about is whether I should follow the steps in Windows (the original DSDT thread) or the linked (in the original thread) macOS one (which has an app and everything) — I feel the former is what makes sense, but BootCamp makes it confusing lol

2016 13" non-TouchBar MacBook Pro, Razer Core X, AMD RX 480 -- and an error 12 I can't seem to fix


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AJ Scarcella
(@aj_scarcella)
Trusted Member
Joined: 2 years ago
 

I believe that you’ll have a much easier time getting the modified DSDT file done via MacOS than Windows, so I recommend doing it there. 

Mac Pro 2013
OWC Mercury Helios FX
Radeon RX 580 8GB


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itsage
(@itsage)
Founder Admin
Joined: 5 years ago
 

Our public repository of eGPU DSDT Overrides contains an appropriate DSDT.aml for the 2016 13" MacBook Pro non TouchBar. Look for and download Apple_2016_late-13in-MacBook-Pro_goalque.zip.

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external graphics card builds
best laptops for external GPU
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2020 Gigabyte Z490 Vision D [10th,8C,K] + RTX 2080 Ti @ 32Gbps-TB3 (AORUS Gaming Box) + Win10 2004 [build link]  


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Josh Girvin
(@josh_girvin)
Active Member
Joined: 2 years ago
 

@itsage

So interestingly, I tried that, and it quite literally busted my Windows boot camp -- stopped it booting altogether, even after removing the USB I was booting off lol

But, writing my own override was simple enough, and it's now working perfectly under Windows 1903 v1 at .295 Smile

2016 13" non-TouchBar MacBook Pro, Razer Core X, AMD RX 480 -- and an error 12 I can't seem to fix


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