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[Solved] eGPU error 12 fail after update to Windows 10 1903 or newer (OS Build 18362.329 or newer) inc downgrade pci.sys version solution  

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Gakkou
(@gakkou)
Eminent Member
Joined: 2 months ago
 

@mini-i5

 

According to the posts and builds here, most of the time the nvidia setups work flawlessly, only AMD has these problems. Their drivers have always been bad anyway

 

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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Mini i5
(@mini-i5)
Honorable Member
Joined: 1 year ago
 

@gakkou

Nah, I’ve never had any problem with AMD drivers.

20.4.2 works great with my 5700 XT.

So did AMD’s driver from November of 2019. 

I also ran a RX 580 eGPU setup in 2018-2019 with AMD’s driver. It ran perfectly. 

 

2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX 5700 XT / Mac OS 10.15.6 Catalina / Windows 2004 😏 / Dual LG 27" 4K displays


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Matt Kirby
(@matt_kirby)
New Member
Joined: 4 weeks ago
 

Hi all-

i have been struggling with get my eGPU to work in boot camp, trying a variety of methods, none of which have worked so far.

v1903 is not an option for me as the main reason I am trying to get this going is to run Flight Simulator 2020, which requires a minimum of 1909.

I was hoping to try this recently added build guide, since the system is fairly close to mine and the eGPU is AMD. However, I can’t get past replacing pci.sys, as Windows fails to boot after replacing pci.sys (shows the Windows logo and the dots do about half a spin before restarting twice, then kicking me in to windows repair options).

Has anyone else run in to this?

Happy to start a new thread if needed. My system:
2020 13-inch MacBook Pro
32 GB RAM
i7-1068NG7
2 GB SSD
Gigabyte Gaming Box RX 580

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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Mgear1981
(@mgear1981)
Eminent Member
Joined: 4 years ago
 

Please be aware and check your windows build and version number. The replacement of pci.sys only works on versions of Windows 10 before KB4571756 (OS Build 19041.508). You can remove the kB update from windows 10, block the automatic update system, reboot and replace the pci.sys trough the guide. All will work fine then. I had the same issue as some others, the latest update somehow breaks the possibility of using the old egpu compatible pci.sys.

 

btw anyone has a clue why Microsoft seems to make such an effort to block gepubliceerd use on apple bootcamp ? Why would it not be in the general interest too give Windows 10 as much device adress room as possible ?

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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Mini i5
(@mini-i5)
Honorable Member
Joined: 1 year ago
 

Easy EGPU setup in Bootcamped Windows 10 continues to be a moving target.

The latest forum posts indicate more changes being made to Bootcamp eGPU support in the Big Sur betas.

https://egpu.io/forums/bootcamp/it-seems-like-macos-big-sur-fixes-error-12/

2018 Mac Mini i5 / 6-core 3.0-4.1 Ghz / 32GB / 256GB / Intel UHD 630 / PowerColor Gaming Station / PowerColor dual-fan RX 5700 XT / Mac OS 10.15.6 Catalina / Windows 2004 😏 / Dual LG 27" 4K displays


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Fiesta5ever
(@fiesta5ever)
Active Member
Joined: 11 months ago
 

Hey all,

I had to reset my bootcamp and am now having trouble with Code 12.

My system has been running great for almost a year now and i'm no stranger to the process required to getting around code 12.

I reset my bootcamp using the same ISO file I had used previously. Currently running windows 1903 V1 18362.30.

Used DDU to uninstall Intel driver on my mac mini. Hot plug my 5700XT and tried to download latest Radeon driver Aug2020 update but i continue to get Error 207.

It seems that the root of the issue is from Code 12 which I can't figure out how to resolve. It was my understanding that using this specific Windows 1903 V1 should allow me run AMD card without Error 12. Again, i've done this several times before and it worked previously.

Can anyone offer guidance? I'll be troubleshooting all weekend until its resolved.

My setup: Mac Mini 2018 / RedDevil 5700XT AMD / R43SG-TB3 / Windows OS 1903V1 18362.30

2018 Mac Mini - ADT-Link R43SG-TB3 - Red Devil RX 5700 xt


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Fiesta5ever
(@fiesta5ever)
Active Member
Joined: 11 months ago
 

Update!

I managed to get my system working again.

Below is a list of the exact steps I take whenever I need to reset bootcamp. This time around though, I would use  DDU  and it seemed to work - until i began downloading the Radeon driver. When looking at my Device Manager, it would list the standard "Windows Driver" but once i began the Radeon download it would somehow switch back to Intel (very frustrating). Anyway, i continued to get the Error 207 message at the end of the Radeon Download- This states that the download was completed but windows found an issue (Code 12). I ended up following through as if the download had completed. I restarted once, unplug my gpu, re-plug on login and repeat. After the download completed I restarted my system twice, now its working easy as pie...

Detailed steps below for reference:

Installation steps:
 
macOS: Plug and play. Works perfectly. Applications sometimes need polite encouragement to use the eGPU by speaking to it nicely, and then right clicking on the application in the Finder > Get Info... and check “Prefer external GPU”. Enjoy the significant graphic compute power you now possess.
 
Windoze:  Important note, you’ll need to plug your   Mac Mini   to the monitor via HDMI, keep external drives disconnected, and keep the eGPU switched off or unplugged until later. Installation will otherwise fail, and you’ll need to start from step one.
 
  1. Install Windows 10 Pro as normal using the Boot Camp Utility. I used Win10 v2008
  2. Let the Boot Camp Assistant install the standard drivers.
  3. Reboot into safe mode and run   DDU  . I asked it to wipe   AMD drivers  . I don’t know if this step is required, however the guide this was based off did so I did it. Note that Bluetooth may not work in Safe Mode, so plug your keyboard in via USB for this step.
  4. Reboot back into Windows as normal, and let all the Windows Update run. Several reboots will be required, so be ready to hustle that along. Whilst it’s downloading, go grab the latest   AMD drivers   but don’t install them yet. I used the Radeon Adrenalin 2020 20.9.1 from 16th Sept.
  5. After the updates are completed, plug in / turn on your eGPU. It won’t work, but it’ll allow the   AMD drivers   to install. Painfully, if the eGPU isn’t connected, the driver app will quit as it starts with no prompt… annoying. I selected Factory Reset to “Yes”.
  6. When the first stage of the   AMD drivers   has finished and it’s ready to reset, press restart and unplug the eGPU.
  7. When the system is back at the login screen, plug your eGPU back in. This is important, as the   AMD driver   setup will continue when you log in, and if it can’t find the card, it’ll quit and you’ll need to start back at step 5.
  8. When the installation is finished, click restart and again unplug the eGPU.
  9. When the system starts back up, log in and turn on the eGPU. It’ll fail to start in the device manager however this is expected. Restart again, however as you’re restarting unplug the HDMI cable from the monitor that was directly connected.
  10. When Windows 10 boots, you should be looking at your login screen through the eGPU. Huzzah!

Credit to @jazzdogg for the instructions. This is the exact process i've used many times before but jazzdogg went above and beyond to provide detailed instructions.

Thanks!

2018 Mac Mini - ADT-Link R43SG-TB3 - Red Devil RX 5700 xt


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jazzdogg
(@jazzdogg)
Active Member
Joined: 9 months ago
 

@fiesta5ever, Glad I was able to help! 🙂

 

2019 13” MacBook Pro (8th,4C,U) + Radeon RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.2 & Win10

 
2018 Mac Mini [8th,6C,B] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.6 & Win10 2004 [build link]  


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BeardedBro
(@beardedbro)
Trusted Member
Joined: 1 year ago
 

Here’s my findings from today

 

1) Wiped Bootcamp for fresh install after I haven’t used it in a while. Old insider build no longer worked right and it gave me errors trying to access things.

 2) Let bootcamp installer do it’s thing, downloaded Norton and MSI afterburner, then updated to the newest windows build 19041.508. Let all updates finish doing their thing including the apple ones. 

 3) Downloaded newest drivers from bootcampdrivers and installed them on flash drive. Unzipped and saved for later.

4) Double checked build number, double checked drivers.

 5) Restarted in safe mode, plugged in flash drive and wiped Amd drivers using DDU, restarted. Installed new drivers. Prompted to restart computer and proceeded. (Flash drive stays in from here through the end).

 6) Restarted, plugged eGPU (5700 xt) in after reaching Desktop Home Screen, error 12 on plug in. 

7) Redid Step 5, but after being prompted to restart computer to finish installing, I plugged the eGPU in BEFORE clicking restart.

 8) Restarted, no crash on start up screen. Logged in and saw no Error 12, Afterburner saw the card as well instantly, and device manager saw card instantly. 

9) Starwars Squadron time?

 

This is the same thing I did in the past when I was doing the insider build. It would always fail once or twice before working. Not sure if I got lucky or if rebooting with it plugged in actually for it to work. Everything seems to be running smoothly however I haven’t tested it on a game yet as I’m waiting for steam to work and download. Will update tomorrow if the issue persists and has to be fixed every time you boot or if it’s a one and done thing. 

im assuming I will have to reboot and reinstall drivers every time the computer is turned on as that was the case for the insider builds but we shall see tomorrow. 

This post was modified 2 weeks ago

2019 15" MBP + Bootcamp Win 10 (19041.508)
Processor: 2.4 GHz Intel Core i9
Memory: 32 GB 2400 MHz DDR4
eGPU: Red Devil 5700 xt in a Razer Core X Chroma


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ludalex
(@ludalex)
Eminent Member
Joined: 3 years ago
 

@beardedbro, which version of Bridge OS are you on (you can check from System Report)? Have you ever installed any Big Sur betas? If so, which version?

Screenshot 2020 10 05 at 17.39.56

 

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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