ERROR 12 on BOOTCAMP HAS BEEN FIXED BY MICROSOFT! in WINDOWS INSIDER (FAST) !
 
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ERROR 12 on BOOTCAMP HAS BEEN FIXED BY MICROSOFT! in WINDOWS INSIDER (FAST) !  

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Dope
 Dope
(@dope)
Eminent Member
Joined: 2 years ago
 
Posted by: @unknownsolo

You can see the Windows version in the screenshot at the bottom right. It's the fast ring.

iGPU drivers downloaded automatically and I used bootcampdrivers 2020 red gaming edition (best FPS in games)

so if you efi hack boot into bootcamp right now, both gpus are working with no error? btw, thanks for answering my questions. I've been trying to get this to work for along time now.

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

.

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sibov97
(@sibov97)
Active Member
Joined: 1 year ago
 

Approve that. Previously used to connect 1080ti sonnet egpu to the right top port of 15 inch 2019 macbook while circles spinning on the windows boot. Now i am able to use left top port for hot-connection after boot is finished or even before the boot (for example turning on egpu in mac os and restarting in bootcamp with active egpu). 

However, am still not pretty sure what kind of update solved the problem, cause am not in the insider problem and used to install all the updates till the middle february. 

Update: do not use any efi, clean boot camp setup, internal display.

This post was modified 9 months ago

Macbook Pro 15 2019, Sonnet Breakway 550W + Nvidia Gtx 1080 ti


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Arizor
(@arizor)
Trusted Member
Joined: 9 months ago
 
Posted by: @dope
Posted by: @unknownsolo

You can see the Windows version in the screenshot at the bottom right. It's the fast ring.

iGPU drivers downloaded automatically and I used bootcampdrivers 2020 red gaming edition (best FPS in games)

so if you efi hack boot into bootcamp right now, both gpus are working with no error? btw, thanks for answering my questions. I've been trying to get this to work for along time now.

Just to chip in, I also have both dGPU and iGPU working with no issues on my 16inch 2019. I'm on the earlier approved build ( 18362.230 ), drivers for the Intel via Windows. Did the usual DDU, mount EFI, install AMD Red bootcamp drivers, turn off Windows Update both in Services and in Tasks.

 

edit: should add since my sig isn't appearing, Razer Core X, Vega 64, 2mb active thunderbolt cable.

2019 16-inch MacBook Pro Retina (2.3ghz Intel i9) // Radeon 5500M (8GB).
MacOS Catalina // Bootcamp Win10 2004 (Build 19041).
Razer Core X // Vega 64 // 2m Active Thunderbolt cable.


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Dope
 Dope
(@dope)
Eminent Member
Joined: 2 years ago
 
Posted by: @arizor
Posted by: @dope
Posted by: @unknownsolo

You can see the Windows version in the screenshot at the bottom right. It's the fast ring.

iGPU drivers downloaded automatically and I used bootcampdrivers 2020 red gaming edition (best FPS in games)

so if you efi hack boot into bootcamp right now, both gpus are working with no error? btw, thanks for answering my questions. I've been trying to get this to work for along time now.

Just to chip in, I also have both dGPU and iGPU working with no issues on my 16inch 2019. I'm on the earlier approved build ( 18362.230 ), drivers for the Intel via Windows. Did the usual DDU, mount EFI, install AMD Red bootcamp drivers, turn off Windows Update both in Services and in Tasks.

 

edit: should add since my sig isn't appearing, Razer Core X, Vega 64, 2mb active thunderbolt cable.

Are you able to boot up with no egpu attached and have both igpu and dgpu working? So No egpu attached, mount efi, boot, and both internal gpus are working with no error?

or do you have to throw the egpu into the mix?

 

im still unable to achieve this.

thanks. 

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

.

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Arizor
(@arizor)
Trusted Member
Joined: 9 months ago
 

As long as I run the Apple boot EFI, without connecting eGPU, both dgpu and igpu show up.

 

If connected, only dgpu and egpu show up (and can run internal and external screens respectively, though I select to only output to eGPU screen).

2019 16-inch MacBook Pro Retina (2.3ghz Intel i9) // Radeon 5500M (8GB).
MacOS Catalina // Bootcamp Win10 2004 (Build 19041).
Razer Core X // Vega 64 // 2m Active Thunderbolt cable.


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Dope
 Dope
(@dope)
Eminent Member
Joined: 2 years ago
 
Posted by: @arizor

As long as I run the Apple boot EFI, without connecting eGPU, both dgpu and igpu show up.

 

If connected, only dgpu and egpu show up (and can run internal and external screens respectively, though I select to only output to eGPU screen).

This is not working for me. I get code 43 on dgpu. I am working with a 2019 MBP 15”. Although it shouldn’t be any different. 

all efi boot files work for me on activating the igpu. It’s just when it does, errors out the dgpu.

could it be possible to edit the code to make this work? I remember reading someone with a 16” having the same problems as me.   

thanks for all the help.

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

.

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unknownsolo
(@unknownsolo)
Trusted Member
Joined: 3 years ago
 

I gave up on this whole thing to be honest and already returned my eGPU enclosure. Having the Razer X Core Chroma didn't help either since its plagued with issues as well. Im happy with my 5500m as my primary GPU for now.

Late 2019 MacBook Pro 16-inch with AMD 5500m dGPU - Razer Core X Chroma - AMD RX 5700 XT

 
2017 15" MacBook Pro (RP560) [7th,4C,H] + GTX 1080 Ti @ 32Gbps-TB3 (ASUS XG Station 2) + macOS 10.13.1 [build link]  


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jangoloti
(@jangoloti_1)
Estimable Member
Joined: 1 year ago
 
Posted by: @unknownsolo

I gave up on this whole thing to be honest and already returned my eGPU enclosure. Having the Razer X Core Chroma didn't help either since its plagued with issues as well. Im happy with my 5500m as my primary GPU for now.

I understand you, the effort is too big. I hesitate before trying to set up my Sonnet on Bootcamp.

Mac Mini 2018 i7 16 GB 512 GB SSD, Mac Book Pro 2016, HP Z31x, Sonnet Breakaway Box 550 W, Nitro+ RX5700 XT, KFA2 SNPR 1060 6GB eGPU,...


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orchoidizer
(@orchoidizer)
Active Member
Joined: 1 year ago
 

I can confirm that (fast)preview build 19569.1000 has not solved the error 12 problem for my setup.

I still have to disable / enable the PCIe ports on each boot and use the EFI hack.

Mid 2015 15-inch MacBook Pro Retina (2.2GHz Intel quad Core i7)
Intel Iris Pro Graphics. Thunderbolt 2, High Sierra - Bootcamp Win10 1903 (18362.39)
Razer Core X - Vega 64, Apple TB3 to TB2 Adapter ,- 2m TB2 cable


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daddddy
(@daddddy)
New Member
Joined: 9 months ago
 

I was stuck on Error 12 up until I installed the Fast Insider Preview, now everything is plug n play and everything works!

 

I didn't even run DDU after updating Windows, it just started working mid-update all of a sudden.

 

Running PowerColor Gaming Station + RX 5700 XT.

2019 15" MacBook Pro (Vega16) [9th,8C,H] + RX 5700 XT @ 32Gbps-TB3 (PowerColor Gaming Station) + macOS 10.15.3 & Win10 [build link]  

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