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Boot Camp eGPU error 12 fail after update to Windows 10 1903 (OS Build 18362.329...
 

[Solved] Boot Camp eGPU error 12 fail after update to Windows 10 1903 (OS Build 18362.329 or newer)  

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

I've tried to do a bit more digging into the ongoing issues with eGPUs and Windows 10 190*. From what I can tell from a dive into Device Manager, there seems to be an issue relating to how Windows is (or rather, isn't) properly allocating eGPUs into the 36-bit space that's generated with a DSDT override. At the moment on my nMP, the Large Memory allocation is created as before, but it's now a "Pci Bus" instead of the "PCI Express Root Complex". It also doesn't look like Windows is actually allocating the eGPU to that memory anymore either, which is what I assume is causing the code 12 on my system.

I'm not sure how to proceed from here as I don't think there's a universal way to get Windows to properly allocate the devices into the Large Memory option. nando's DIY eGPU Setup 1.35 software doesn't seem to make any reference to UEFI-based Windows systems (or my nMP for that matter) so I don't necessarily want to purchase it without knowing if it would actually do anything. Any one else willing to shed some light?

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


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macjj
(@macjj)
Active Member
Joined: 2 years ago
 

@itsage

Hi,

although nvidia eGPUs seem to work after the latest Windows 10 updates, something seems to have changed (atleast for me) after the latest Win 10 2019-10 update (18362.449):

System:

  • MacBook Pro 13" 2018 (i7, TB3)
  • eGPU used only in bootcamp (no patches or kext hacks installed)
  • Akitio Thunder2 (in Dans A4-SFX box + Apple TB3/TB2 adapter) + EVGA GTX 980

I checked the AIDA GPGPU memory read benchmark before/after the latest update:

  • Win1o (18362.419) = ~1670MB/s
  • Win10 (18362.449) = 1370MB/s (didn't change even if I tried other TB3 ports and re-installed drivers after using DDU)

Not a huge change and doesn't seem to impact game (fps) performance. Haven't  checked the AIDA memory read benchmarks from previous Win10 builds (<18362.419)

Just out of interest, are ~1670MB/s memory read speeds normal for TB2 connections (TB3 Mac + TB2 eGPU) or should they be higher?

Thanks!

JJ

 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Ningauble77
(@ningauble77)
Estimable Member
Joined: 2 years ago
 

@macjj

TB3 bandwidth is down a bit for me with build 449.  Also note the RTX 2080 is in a Razer Core X Chroma, not my Core v2, I have both connected in windows (with peripherals attached to the v2) and then use the v2/Radeon VII by itself in MacOS.

aida64 449

2019 16 Macbook Pro + Core v2 + Radeon VII MacOS 10.15.1
Core X Chroma + RTX 2080 Windows 10 1909


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mydoomfr
(@mydoomfr)
New Member
Joined: 1 month ago
 

I had the same issue (error code 12) with the latest windows updates.

Today I reinstalled windows 10 1903 V1 via Bootcamp assistant and installed the latest Bootcamp driver for AMD cards and it works like a charm !

Also, I had to disable Windows Update service to prevent it to update windows.

 

Thanks for sharing guys !

--

Mac mini 2018 + Razer Core (Radeon Vega 56)

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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teltersat2
(@teltersat2)
Eminent Member
Joined: 3 months ago
 
Posted by: @aj_scarcella

I've tried to do a bit more digging into the ongoing issues with eGPUs and Windows 10 190*. From what I can tell from a dive into Device Manager, there seems to be an issue relating to how Windows is (or rather, isn't) properly allocating eGPUs into the 36-bit space that's generated with a DSDT override. At the moment on my nMP, the Large Memory allocation is created as before, but it's now a "Pci Bus" instead of the "PCI Express Root Complex". It also doesn't look like Windows is actually allocating the eGPU to that memory anymore either, which is what I assume is causing the code 12 on my system.

I'm not sure how to proceed from here as I don't think there's a universal way to get Windows to properly allocate the devices into the Large Memory option. nando's DIY eGPU Setup 1.35 software doesn't seem to make any reference to UEFI-based Windows systems (or my nMP for that matter) so I don't necessarily want to purchase it without knowing if it would actually do anything. Any one else willing to shed some light?

I wonder if forcing the "PCI Bus" device driver to "PCI Express Root Complex" driver would force it to behave like before... sadly I don't have a device to test this with

Current build: 2017 15" MacBook Pro + Mantiz Venus MZ-02 + Silverstone SX700-LPT (750W Peak) + Sapphire Radeon RX Vega 64 (Reference model)
Replaced parts: Sapphire Radeon RX 580 Nitro+


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WickedPorter
(@wickedporter)
Active Member
Joined: 7 months ago
 

2019 15" Vega 20 MBP here.

After upgrading to the latest version of 1903, as many have reported: all broken with Error 12.

I then installed 1909... no go, still Error 12 and can't get it to work no matter how much tinkering I do in device manager, what ports I use, etc.

I've since downgraded to 1809 and everything works perfectly. Will stick with 1809 until this is fixed ... hopefully soon!

Nick/WP

NUC8i7/MBP 16" + Razer Core X + Radeon VII


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

@teltersat2

Any idea how to do this? It's one of the actual differences I've noticed between 1809 and 1903 in Device Manager so there's always a possibility that there's a thread to unravel there...

 

Edit: Currently messing around with drivers for the Pci Bus under Large Memory. The driver for this device is supplied by AMD (amdkmpfd.sys, version 19.20.0.1000 from March 2019). I did a rollback to the previous, Microsoft supplied drivers (from 2006, apparently), which restored the device as PCI Express Root Complex. I then had to manually block Windows from updating the driver using gpedit.exe, but it was the same result after rebooting - code 12 on my RX 580

This post was modified 1 month ago

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


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teltersat2
(@teltersat2)
Eminent Member
Joined: 3 months ago
 

@aj_scarcella

Was looking into this and I found out that one of my laptops in 1709 (work laptop) had the PCI Bus instead of the Complex Root - I don't think that forcing the drivers at this level would make any difference sadly 🙁

 

 

 pci bus

Current build: 2017 15" MacBook Pro + Mantiz Venus MZ-02 + Silverstone SX700-LPT (750W Peak) + Sapphire Radeon RX Vega 64 (Reference model)
Replaced parts: Sapphire Radeon RX 580 Nitro+


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

@teltersat2

What are the driver details for that Pci Bus, out of curiosity?

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


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teltersat2
(@teltersat2)
Eminent Member
Joined: 3 months ago
 

@aj_scarcella

Here you go!

Edit: Interesting - this is an Intel Laptop w/ an Intel iGPU. but I have an RX Vega 64 in my eGPU. I am intrigued...

pci bus driver
This post was modified 1 month ago

Current build: 2017 15" MacBook Pro + Mantiz Venus MZ-02 + Silverstone SX700-LPT (750W Peak) + Sapphire Radeon RX Vega 64 (Reference model)
Replaced parts: Sapphire Radeon RX 580 Nitro+


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

@teltersat2

So, this seems to be a thing that Radeon drivers have been doing for a while now. I'm not entirely sure what's going on there, but the change to Pci Bus doesn't seem unique to 1903. It's weird though: I'm fairly certain that I was using the same September drivers on 1809 and it didn't do anything to that PCI Express Root Complex. But on 1903 and above, Microsoft or AMD or whoever decided to use the AMD driver file instead. It's hard to figure out exactly what changed.

This post was modified 1 month ago

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


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rawwd
(@rawwd)
Active Member
Joined: 1 month ago
 

@eightarmedpet

Can you make Win10 1903 V1 from April available somewhere? I just downloaded Win10 and the official download is 1903 V2 from May. Since I haven't tried to install it yet I can't know for sure, but isn't V2 same ase build .30?

EDIT: Win 10 1903 V2 May update turned out to be 18362.356

This post was modified 1 month ago

MacBook Pro 15" Touchbar 2016, 2,9 GHz Intel Core i7 (I7-6700HQ) quadcore, 1TB SSD
16 GB 2133 MHz LPDDR3 RAM, Intel HD Graphics 530 1536 MB, AMD Radeon Pro 460 4 MB
Identifiers: Late 2016 15" (Touch Bar) - MLH32LL/A* - MacBookPro13,3 - A1707 - 3072
macOS Mojave 10.14.6 (Oct 2019)
Enclosure: Razer Core X (Oct 2019)
GFX Card: Gigabyte AMD Radeon VII HBM2 16 GB (Oct 2019)


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rawwd
(@rawwd)
Active Member
Joined: 1 month ago
 
Posted by: @ningauble77

@itsage

I can confirm RTX 2080 works fine with full hotplug functionality with Win 10 Build 18362.418

nvidia 418

Update:  RTX card works fine when hotplugged, but cannot be present at boot time or the system hangs on the apple logo and chassis gets warm.  The Radeon VII had a similar issue when restarting from boot camp, but restarting from macos and cold boots were fine.

Are you able to make the Razer Core work in macOS? Can you please tell me how you got RVII to work in Mojave? I am running Core X with RVII in 10.14.6 and it doesn't show up for me in macOS and now in Win 10 build 18362.356 (from which I am writing this) which is the oldest downloadable ISO from MS official download I guess I won't see it in Win either. How do you guys manage to see the error 12? My device manager shows none of those fancy devices like you show in your lists like @nelson_ten above...

MacBook Pro 15" Touchbar 2016, 2,9 GHz Intel Core i7 (I7-6700HQ) quadcore, 1TB SSD
16 GB 2133 MHz LPDDR3 RAM, Intel HD Graphics 530 1536 MB, AMD Radeon Pro 460 4 MB
Identifiers: Late 2016 15" (Touch Bar) - MLH32LL/A* - MacBookPro13,3 - A1707 - 3072
macOS Mojave 10.14.6 (Oct 2019)
Enclosure: Razer Core X (Oct 2019)
GFX Card: Gigabyte AMD Radeon VII HBM2 16 GB (Oct 2019)


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Eightarmedpet
(@eightarmedpet)
Noble Member
Joined: 3 years ago
 

@rawwd I deleted all my ISO’s in a feng sui (sic?) attack but I’ll see what I can find with time machine...

 

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

---

LG 5K Ultrafine flickering issue fix


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

Has anyone used the Feedback Hub in Windows 10 to report the eGPU issue to Microsoft? Particularly those running non-Apple systems where eGPU is less of a hack and more of a bonafide feature.

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


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Ningauble77
(@ningauble77)
Estimable Member
Joined: 2 years ago
 
Posted by: @rawwd
Posted by: @ningauble77

@itsage

I can confirm RTX 2080 works fine with full hotplug functionality with Win 10 Build 18362.418

nvidia 418

Update:  RTX card works fine when hotplugged, but cannot be present at boot time or the system hangs on the apple logo and chassis gets warm.  The Radeon VII had a similar issue when restarting from boot camp, but restarting from macos and cold boots were fine.

Are you able to make the Razer Core work in macOS? Can you please tell me how you got RVII to work in Mojave? I am running Core X with RVII in 10.14.6 and it doesn't show up for me in macOS and now in Win 10 build 18362.356 (from which I am writing this) which is the oldest downloadable ISO from MS official download I guess I won't see it in Win either. How do you guys manage to see the error 12? My device manager shows none of those fancy devices like you show in your lists like @nelson_ten above...

I currently have 2 egpu's, 1 is a Radeon VII/Core v2.  The other is a Core X Chroma/RTX 2080.  I am only using one gpu at a time, both are plugged into my monitor via displayport.  I swap cables when switching operating systems.  In both operating systems the enclosures and video cards are visible.  In MacOS the core chroma and nvidia card show up in the system profiler under thunderbolt and pci devices respectively, but since there are no drivers the card is non-functional.  In Windows, both egpu's show up in the device manager, but the Radeon VII card gives Error 12 and will not function.  If your RVII does not show up at all in either OS I would suspect a bad card, bad enclosure or bad cable.  Are you able to test the card out in a desktop PC?

This post was modified 1 month ago

2019 16 Macbook Pro + Core v2 + Radeon VII MacOS 10.15.1
Core X Chroma + RTX 2080 Windows 10 1909


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rawwd
(@rawwd)
Active Member
Joined: 1 month ago
 
Posted by: @mydoomfr

I had the same issue (error code 12) with the latest windows updates.

Today I reinstalled windows 10 1903 V1 via Bootcamp assistant and installed the latest Bootcamp driver for AMD cards and it works like a charm !

Also, I had to disable Windows Update service to prevent it to update windows.

 

Thanks for sharing guys !

--

Mac mini 2018 + Razer Core (Radeon Vega 56)

@mydoomfr can you share a download location for the older Win ISO?

Posted by: @ningauble77
Posted by: @rawwd
Posted by: @ningauble77

@itsage

I can confirm RTX 2080 works fine with full hotplug functionality with Win 10 Build 18362.418

nvidia 418

Update:  RTX card works fine when hotplugged, but cannot be present at boot time or the system hangs on the apple logo and chassis gets warm.  The Radeon VII had a similar issue when restarting from boot camp, but restarting from macos and cold boots were fine.

Are you able to make the Razer Core work in macOS? Can you please tell me how you got RVII to work in Mojave? I am running Core X with RVII in 10.14.6 and it doesn't show up for me in macOS and now in Win 10 build 18362.356 (from which I am writing this) which is the oldest downloadable ISO from MS official download I guess I won't see it in Win either. How do you guys manage to see the error 12? My device manager shows none of those fancy devices like you show in your lists like @nelson_ten above...

I currently have 2 egpu's, 1 is a Radeon VII/Core v2.  The other is a Core X Chroma/RTX 2080.  I am only using one gpu at a time, both are plugged into my monitor via displayport.  I swap cables when switching operating systems.  In both operating systems the enclosures and video cards are visible.  In MacOS the core chroma and nvidia card show up in the system profiler under thunderbolt and pci devices respectively, but since there are no drivers the card is non-functional.  In Windows, both egpu's show up in the device manager, but the Radeon VII card gives Error 12 and will not function.  If your RVII does not show up at all in either OS I would suspect a bad card, bad enclosure or bad cable.  Are you able to test the card out in a desktop PC?

@ningauble77

Yes I am starting to suspect the same. The successful builds I see with RVII are on Core X Chroma or V2, which I suspect are different, or a completeley different brand, like Mantiz or Netstor. I think I will upgrade to X Chroma and see if that helps. 

The card has actually been a demo card, so it could be that it’s faulty outside a desktop, but I have no chance to test this, so the other option is to get another brand new one or give it up and go for Vega64

Does the Vega64 draw more power than RVII so that it makes X Chroma a good investment?

I might however have spoken to soon in the Win case, since I still need to complete som setup steps. 

Posted by: @eightarmedpet

@rawwd I deleted all my ISO’s in a feng sui (sic?) attack but I’ll see what I can find with time machine...

 

@eightarmedpet

Fingers crossed 😉

This post was modified 1 month ago

MacBook Pro 15" Touchbar 2016, 2,9 GHz Intel Core i7 (I7-6700HQ) quadcore, 1TB SSD
16 GB 2133 MHz LPDDR3 RAM, Intel HD Graphics 530 1536 MB, AMD Radeon Pro 460 4 MB
Identifiers: Late 2016 15" (Touch Bar) - MLH32LL/A* - MacBookPro13,3 - A1707 - 3072
macOS Mojave 10.14.6 (Oct 2019)
Enclosure: Razer Core X (Oct 2019)
GFX Card: Gigabyte AMD Radeon VII HBM2 16 GB (Oct 2019)


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mydoomfr
(@mydoomfr)
New Member
Joined: 1 month ago
 
Posted by: @rawwd

@mydoomfr can you share a download location for the older Win ISO?

Sure, this is the official "consumer edition" from MSDN including Home & Pro versions. (64bits)
Do not pay attention to the "French" tag. You can change the languages/keymap before the installation.

1) https://www.fromsmash.com/egpu-win10-1903-v1-iso

2) https://www.swisstransfer.com/d/9202b3a5-6746-4f5d-b33e-c63ab1af5e21

EDIT: Of course, to use the above ISO you must own an official Win10 key. 

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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

Just an FYI to everyone: I've put a ticket for the eGPU problem into the Feedback Hub. If you feel inclined, jump in there and give it an upvote.

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


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jalex
(@jalex)
New Member
Joined: 1 month ago
 

Hi, I'm new here. Just to share my experience.

 

I have lenovo yoga 730-13 IWL and sapphire radeon VII with razer core X. In windows 10 build 18362.449 I also get code 12 but the system recognizes the graphics card.

Has anyone tried it in linux. If so, what distro do you use?

Right now I'm really sad. Just bought the graphics card and the enclosure and never had the opportunity to try it. More than 1000€ paper weight!

 

@aj scarcella: how can I up vote your ticket in the feedback hub? What about AMD, do you think they could address this issue with a driver update?

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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joaoamaral
(@joaoamaral)
New Member
Joined: 6 months ago
 

@aj_scarcella

Thank you for doing this.
Can you provide us with the link? 🙂

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Ningauble77
(@ningauble77)
Estimable Member
Joined: 2 years ago
 

Here are 4 egpu error 12 related feedbacks (including mine).  It would be great if people here could upvote them:

https://aka.ms/AA6etno

https://aka.ms/AA66had

https://aka.ms/AA65meb

https://aka.ms/AA669l4

2019 16 Macbook Pro + Core v2 + Radeon VII MacOS 10.15.1
Core X Chroma + RTX 2080 Windows 10 1909


mac_editor, deduwka, itsage and 1 people liked
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AJ Scarcella
(@aj_scarcella)
Trusted Member
Joined: 2 months ago
 

I will add (and upvote) the tickets when I'm back on Windows. 

There is the possibility that it is a driver issue. It's very unclear what the problem is exactly though, so I'm not sure. I can't run the regular AMD drivers so I'm waiting for Bootcampdrivers.com to update.

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


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fuweichin
(@fuweichin)
New Member
Joined: 1 month ago
 

@daniele_pugliese

At least your VR-with-eGPU solution worked some time.

I cannot even finish Oculus Rift S setup process, with eGPU AKiTiO Node Pro + Gigabyte RTX 2070 Super.

As Oculus Support replied,

Using an external GPU has never been done successfully and as such is unsupported.

 

 

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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fangyuxi
(@fangyuxi)
New Member
Joined: 1 month ago
 

@daniele_pugliese

Thank you for your sharing.

I have a new Mac mini 2018, Razer core X, RTX2080s . now I want to install win10 by bootcamp.

but i can't find Build 18382.30, ISO file is called Windows 10 1903 V1.

I only have two builds 

Win10_1809Oct_v2_China_GGK_Chinese(Simplified)_x64
Win10_1903_V2_China_GGK_Chinese(Simplified)_x64

if i install 1809Oct_v2, the egpu is working ?

Thank you very much !


Mac mini 2018 i7 32G 512G
Razer Core X Chroma
ROG STRIX RTX 2080 Super O8G GAMING


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(@daniele_pugliese)
Active Member
Joined: 7 months ago
 

@fangyuxi

Hi, 

I don’t know if the version 18 is available yet. I have the file on my Mac if you can’t find it on internet let me know so I can share my exe with you. 

@fuweichin

Hi , I don’t have any vr solution, so I am sorry but I can’t help you with it 

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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fangyuxi
(@fangyuxi)
New Member
Joined: 1 month ago
 

@daniele_pugliese

OK Thank you.

Let me try if Version 18 can make egpu available.

My Windows key can only activate Windows Home Edition. Is your iso a Windows Home Edition or a Windows Professional Edition? If it is a professional version, I can't use it.

If version 18 is not available and your iso is Windows Home Edition, please share it with me, thank you very much. Let me try version18 first.

Mac mini 2018 i7 32G 512G
Razer Core X Chroma
ROG STRIX RTX 2080 Super O8G GAMING


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sunny
(@sunny)
Eminent Member
Joined: 10 months ago
 
Posted by: @fangyuxi

@daniele_pugliese

Thank you for your sharing.

I have a new Mac mini 2018, Razer core X, RTX2080s . now I want to install win10 by bootcamp.

but i can't find Build 18382.30, ISO file is called Windows 10 1903 V1.

I only have two builds 

Win10_1809Oct_v2_China_GGK_Chinese(Simplified)_x64
Win10_1903_V2_China_GGK_Chinese(Simplified)_x64

if i install 1809Oct_v2, the egpu is working ?

Thank you very much !


The Mac mini with nvidia card works fine on latest versions. Just need to power on / plug in egpu after it boots...

Mac Mini 2018 / Aorus Gaming Box RTX 2070


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(@daniele_pugliese)
Active Member
Joined: 7 months ago
 

@sunny

Yes, the 1809Oct_v2 should be fine. I installed it also. Currently I have installed the version 18362.175 and work fine.

@fangyuxi

hi, from max is if you go in Microsoft web site currently you can choose to download the October 2018 update. Are you tried ? 

This post was modified 1 month ago

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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

Here is my Feedback Hub link: https://aka.ms/AA6gudz

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


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fangyuxi
(@fangyuxi)
New Member
Joined: 1 month ago
 

@daniele_pugliese

I have already downloaded 1809Oct_v2 on Microsoft's official website, and I will try it in the last few days. Thank you.

Mac mini 2018 i7 32G 512G
Razer Core X Chroma
ROG STRIX RTX 2080 Super O8G GAMING


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DeeKay
(@deekay)
New Member
Joined: 1 month ago
 

Hey.
Would like to add my own experience to this mess, in case it helps someone.
I used to have a GeForce 970 GTX which worked fine with the recent versions of Windows Home, using the "get into the boot menu then plug in the eGPU" method. It would occasionally fail the first time, but eventually worked, and no issues post-boot once the OS has loaded.
Just recently I swapped the GPU to a Radeon 5700 XT, which works fine in Catalina 10.15.1, but ended up a complete no-go in Boot Camp, no matter what plugin/boot variation I tried. After a few hours of investigation I found this thread, reinstalled Windows and can confirm it works in 18362.30 and 18362.295 (post-KB4512508), using the same boot menu plug method (not plug and play).
However, upgrading Windows to anything beyond that build not only caused error 12 to return, but also persisted it after downgrading (to both 30 and 295), essentially making the upgrade irreversible. I suggest being careful with enabling Windows Update by accident and taking an image backup just in case.

This post was modified 1 month ago

MacBook Pro 13" 2018
OWC Mercury Helios FX 650
AMD Radeon 5700 XT (via Boot Camp, Windows 10 18362.295)


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deduwka
(@deduwka)
Active Member
Joined: 2 months ago
 

@deekay

Hi. Thanks for sharing. Strange, Windows Update turned back on one day and installed the problematic update upon restarting, however I rolled everything back after I manually deleted the update using Programs and Features and everything works fine now. The only thing I did (not): I restarted without eGPU attached knowing it was gonna be a bad scenario. After deleting the KB-update I restarted the system so it finishes reverting the changes and then restarted one more time with eGPU this time.

 

Regarding Error 12 there's something confusing: the error shows in my PC's hardware properties in Devices and Printers (under "PCI express downstream switch port"), but the eGPU works. Disabling and re-enabling the driver removes the yellow exclamation sign but it all seems not to have any difference.

This post was modified 1 month ago

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


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(@krishna_v_)
New Member
Joined: 1 month ago
 

Guess I'm one of the lucky few for a change. FYI, for those still struggling with this issue, hope this helps - I have a 2018 Mac mini w/ Razer Core V2 and nVidia GTX1080. I used to have macOS High Sierra and Windows 10 1903 .30 build with the updates disabled. I unplugged the egpu and switched to the igpu. I, then, logged into macOS and updated it to Catalina today after running other updates. Then left it on igpu and logged back into Windows, enabled the updates and ran all the updates till it couldn't update anymore. It was now on build 18362.449. I then shut the computer down.

Then I unplugged the power to the egpu, plugged it back in and connected the thunderbolt cable to the port right next to the HDMI port on the Mac mini. I powered it on and let it do its thing. There was no boot loop, no screen tears or ugly flickering. It went from the circular loading graphic to the Windows logo and then to the Windows lock screen.

I haven't run any benchmarks to check the performance, but I don't have a control to compare them with. I'm gonna play some games and see if I notice a difference.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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Ningauble77
(@ningauble77)
Estimable Member
Joined: 2 years ago
 

Nvidia cards have experienced alot fewer issues post 18362.329.  My RTX 2080 works fine outside of the fact it cannot be present at power on, and I believe this is an issue specific to recent Catalina firmwares and RTX cards.

2019 16 Macbook Pro + Core v2 + Radeon VII MacOS 10.15.1
Core X Chroma + RTX 2080 Windows 10 1909


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whoDean
(@whodean)
New Member
Joined: 2 months ago
 

build number 19018 released by MS, has anyone tried it?

2018 Mac Mini
Razer Core X Chroma
Radeon RX 5700XT


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