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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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elChupete
(@elchupete)
New Member
Joined: 7 months ago
 

Hi there,

Just want to leave my story.

I was using a Razer Core X with a Saphire Nitro RX 580, which I used with a bootcamp installed Windows latest version (I downloaded the iso from MS last week). I am using a 2020 Mac Mini and latest AMD Adrenalin drivers (not the BCD version)

I haven't patched any thing it was running out of the box.

The 580 was not giving me the performance I hoped for and I returned it. I ordered a RX5700 XT instead. But unfortunately Windows wasn't showing up anymore.

After a couple of reinstalls, I started to search the web and learned, that MS had broken egpu support. The last working Windows was 1903. I found a iso somewhere, installed it, disabled autoupdates and the system was booting again.

Downside is the 1 Year old Windows...

Then I read about the pci.sys swap trick, tried it and what should I say. - It works

So I am running a Windows with all the latest patches installed (except for the pci.sys) .

 

Thanks guys. YOU ARE AWESOME

This post was modified 7 months ago

MacMini 2020, Razer Core X, XFX RX5700 XT Thic II, Windows 10 on current patch level with pci.sys from Version 1903


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Steveseg
(@steveseg)
New Member
Joined: 10 months ago
 

Latest version of Windows working for me with a Mac mini 2018 i7 with Catalina 15.4.4, AMD Vega 56, in a Razer X. Did it by replacing pci.sys. I have my internal 500GB SSD partitioned in two - 300GB for Mac, and 200GB for Bootcamp.

I started with ISO of 1903 V1

Then I upgraded to 18362.295 which I got here: https://www.catalog.update.microsoft.com/Search.aspx?q=KB4512508

Then Bootcamp support software.

The Radeon driver I was using was 19.10.2

I have two monitors an old Dell 20" 2005FPW, from 2006, and a Dell 27"  S2719DGF, from 2019.
The 20" is always connected to the back of the Razer X by a Display port cable. The 27" is connected by HDMI that goes back and forth between the Mac and the Razer (I'll explain).

With 27" connected to Mac, after installing .295 I used DDU ( https://www.wagnardsoft.com/) in Safe mode ([Shift] + Restart) to uninstall the Intel drivers.

I use Device Manager to make sure sure Intel was uninstalled.

Shut everything down, turn on Razer, then turn on Mac, Razer is connected to port closest to HDMI (I don't think it matters where, but you want to keep it away from other resource hogs). I have a 4 bay external HD box by Media Sonic connected to the port closest to the ethernet port. I then install Radeon software. Once installed the 20" comes to life, i.e. windows appears on the 20". A Restart is required. After Restart with the 27" still connected to the Mac, the Windows loading screen, the one with the spinning dots, first appears on the 27", and then the 27" starts flashing/glitching. Then the login screen appears on the 20", after logging in I plug the 27" into the Razer, and it comes to life.

I can shutdown and power up and leave the 27" connected to the Razer. The only time I need to plug the 27" to the Mac is after switching from Mac OS to Windows.

BTW everything on the Mac side just works, because ... Mac.

TO UPDATE TO THE LATEST VERSION OF WINDOWS:

I made an emergency USB stick Windows drive. I used AOMEI ( http://www2.aomeisoftware.com/download/pa/PAssist_Std.exe) and followed the guide referenced by @gregor_pigulaon on page 16: https://www.diskpart.com/windows-10/put-windows-10-on-usb-4125.html I used my ISO.

Then I upgraded to Windows 1903.18362.778. The 20" and AMD card stopped working. I then updated to 1909.18363.778.

I then booted Emergency drive, which appears as EFI when holding the Option key.

IT TAKES ABOUT A MINUTE BEFORE ANYTHING STARTS HAPPENING.

Some useful DOS commands:

dir = directory listing

dir /p = directory listing a page at a time

cd .. = go back one level, aka go back one folder

cd \ = get back to drive letter, e.g. D:

wmic logicaldisk list brief = list all the drive letters you have connected

exit = exit DOS

Looking at all the drives, if you have multiple, can be confusing. Knowing what is in the downloads folder, or making a folder and naming it something useful can be helpful.

Once at the command line you use this command: copy D:\Windows\System32\drivers\pci.sys C:\Windows\System32\drivers\pci.sys. Where D, or in my case X, is the source USB stick, and C is the Bootcamp Windows 1909.18363.778.

I used DDU ( https://www.wagnardsoft.com/) in Safe mode ([Shift] + Restart) to uninstall the Intel drivers.

I use Device Manager to make sure sure Intel was uninstalled.

With the new version of Windows working with the AMD. I updated the Radeon software to 20.2.2.

BTW, the day before doing all this I created an SSD with the same version, i.e. .295, as I had in the Mac, to make sure this would all work. I used LOM.tv's guide: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwjYwLvQkorpAhWhhHIEHeroApYQwqsBMAB6BAgKEAQ&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dg77iw6hl2GU&usg=AOvVaw0-LYSsAPwHIYf3WQTWiLk7

BTW if you ever use this guide https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=2ahUKEwi219HxjorpAhVHkHIEHUJwDRIQFjABegQICxAJ&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DkR28kVtZYJY&usg=AOvVaw073G_EQOudjzHMie__GAxO know that VMware fusion does not work with USB 3.1 SSDs, Parallel does.

My SSD is a Samsunng T5 256GB.

Thank you to the community!

Steve

PS

Create restore points after things are working and make sure to give restore area lots of room. I set mine to about 20GB.

 

 

 

 

This post was modified 7 months ago

Mac mini i7 2018, AMD Radeon RX Vega 56 by Gigabyte, in a Razer X.


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Squidnugget77
(@squidnugget77)
Active Member
Joined: 11 months ago
 

Hello everyone! Thank you for checking out my page; I'm in desperate need of help.

My build is a Mac Mini (2018) with a 6 core 3.2 GHz processor. The eGPU is a AMD Radeon 5700 XT in a eGFX Sonnet Breakaway Box 550.

Running it on Mac is good, everything works at expectation. However, when I try to load into windows, it will load into a windows screen and seem to glitch out (on the intel HDMI) and on the eGPU DisplayPort doesn't even show up. Whenever I load in without the eGPU and turn it back on, I get error 13, or not enough allocated resources. I've tried disabling a few PCle slots (like my ethernet) and haven't had success, and disabled my integrated graphics and restarting with no hope. I've tried installing AMD drivers with no help (just says there is an error with your eGPU).

I have a strong suspicion this is with an update, as I had a .dll file error and decided to update to the latest version, to which the eGPU didn't load into. Decided to wipe Windows and start over in hope it would work (was needing a wipe anyway) with no success.

Update issue, and need to rollback to a later version, or something more? Any ideas?

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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Squidnugget77
(@squidnugget77)
Active Member
Joined: 11 months ago
 

Can you guys confirm that 1903 is the best version, and possibly send me a link of the ISO if it is? Mine was working until I updated, and so I wiped my computer partition. I'm currently on Microsoft Windows Version 1909 (OS Build 18363/592), with no solutions.

 

Also, in Devices on Windows, I have PCI Device, with Driver Error, and Video Controller (VGA Compatible) also with a Driver Error

This post was modified 7 months ago

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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St1000
(@st1000)
Active Member
Joined: 1 year ago
 

Hey everyone, tl;dr Safe to upgrade to Mac OS 10.15.4 or later from 10.15.1?

First, a big thank you to all contributors here. I'd never have gone the egpu route without your help.

I have a build that works perfectly at the moment (see end of post). BUT, Catalina 10.15.1 is buggy as hell, and I'd like to upgrade Mac OS to latest version.

I have a couple of quick questions:

1) Will 10.15.4+ break my setup?

2) If it stops working, will pic.sys fix it?

3) Will I have to stay on win10 .295 or can I allow updates to latest win 10.

 

THANK YOU!

 

My build:

MBP 2018 i9 32GB, 560X Razer Core X Chroma, AMDD 5700 XT. Win 10 (.295) Mac OS 10.15.1

(Windows upgrades turned off with group permissions. Winclone backup of Bootcamp to revert to if needed (I recommend this software).

 

This post was modified 7 months ago

MBP 2018 i9 32GB, 560X Razer Core X Chroma, AMDD 5700 XT. Win 10 (.295) Mac OS 10.15.1


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

@cuppino, thanks for the advice but unfortunately it doesn’t work. 
(I change it in Win, right? Mac doesn’t offer bootcamp drive in its startup disk options)

 

2017 15" MacBook Pro i7 16GB 1TB-SSD
Razer Core X + RTX 2070 Super

 
2017 15" MacBook Pro (RP560) [7th,4C,H] + RTX 2070 Super @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]  


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cuppino
(@cuppino)
Trusted Member
Joined: 2 years ago
 
Posted by: @deduwka

@cuppino, thanks for the advice but unfortunately it doesn’t work. 
(I change it in Win, right? Mac doesn’t offer bootcamp drive in its startup disk options)

 

from the control panel in bootcamp, set the windows disk as boot disk.

 

iMac 27" 5k 2019 (i9 9900k 3,6ghz, 40gb ram ddr4 2666 mhz, ssd 1tb, dgpu Radeon pro vega 48 8gb), Egpu: Razer Core X with ZOTAC GAMING GeForce RTX 3090 Trinity
Osx 10.15.7
Windows 10 pro 2004 - Bootcamp


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

@cuppino, yep, did it

No luck. It worked fine some time ago but started to demand this double boot procedure seemingly for no reason

 

2017 15" MacBook Pro i7 16GB 1TB-SSD
Razer Core X + RTX 2070 Super

 
2017 15" MacBook Pro (RP560) [7th,4C,H] + RTX 2070 Super @ 32Gbps-TB3 (Razer Core X) + Win10 [build link]  


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cuppino
(@cuppino)
Trusted Member
Joined: 2 years ago
 
Posted by: @deduwka

@cuppino, yep, did it

No luck. It worked fine some time ago but started to demand this double boot procedure seemingly for no reason

 

if you set windows as the main boot, after shutting down restart the computer and do not change the setting.
Each time it should work the first time! In my case this was the case.

 

iMac 27" 5k 2019 (i9 9900k 3,6ghz, 40gb ram ddr4 2666 mhz, ssd 1tb, dgpu Radeon pro vega 48 8gb), Egpu: Razer Core X with ZOTAC GAMING GeForce RTX 3090 Trinity
Osx 10.15.7
Windows 10 pro 2004 - Bootcamp


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robboerman
(@robboerman)
New Member
Joined: 7 months ago
 

@cuppino, I am literally pulling out my hair right now. After trying every other trick I installed 1903 18362.295 and tested all the bootcampdrivers I could find... the Radeon RX 5700 XT stays on code 12...

Anything else I could try? I am on a Macbook Pro 2018 15"

 

MacBook Pro 15 (Mid 2018, Radeon Pro 455 2 GB, Intel HD Graphics 530 1536 MB) 16GB, quad core i7
eGPU: Razer Core X, AMD Radeon RX 5700 XT


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