Anyone upgrade to the official Big Sur today and still have a working bootcamp w...
 
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Anyone upgrade to the official Big Sur today and still have a working bootcamp with eGPU and dGPU MBP?  

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Raul Fernandez
(@raul_fernandez)
Active Member
Joined: 4 months ago
 
Posted by: @erik_tank
Posted by: @raul_fernandez
Posted by: @beslemma

Dear all,

Up on this topic. I have a MBP2018 13" 4x TB3 ports (so iGPU) working perfectly on Windows 10 (2004) with a Razer CoreX and a Sapphire Nitro+ RX5700XT if plugged in before booting. No hacks with EFI, simply had to downgrade PCI.SYS to get everything working.

Obviously the rule is "its works don't touch it!" but as matter of curiosity has the community a bit more feedback on Big Sur update and how it helps or breaks the ability to use eGPU in a bootcamp configuration.

Have a nice holiday season & stay safe,

Manu

Hey, buddy, I hope you're okay. I need help!!

I upgraded to Macos big sur and have had trouble using Windows + egpu.

I downloaded the version of Windows 10 1903 v1 which is the one that everyone tells me but I have no idea how I modify the file "PCI. SYS"

Can you help me?

If you use 1903 v1 without doing any windows updates, you already have the proper PCI.SYS file.  Don't use windows updates or it breaks by upgrading PCI.SYS.

I bloquid the updates manually, I clicked the file where it corresponded and when I went to turn on in bootcamp (windows) already with the pci.sys replaced as the blue screen appeared

 

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

@raul_fernandez, Hello. If you are on 1903v1 then the PCI.SYS file is already the good one. According this forum, you should have the best version for eGPU compatibility under BootCamp. Replacement of PCI.SYS is best done via MacOS and access of the NTFS Windows partition (requires a driver) allowing to short cut various system protection. There is a post about this in the bootcamp section of the forum. By the way any update to 1903v1 will break this PCI.SYS file. Cheers. Manu

 

MBP 13" 2018 4x TB3 - Razer Core X - RX5700XT - MacOS Catalina / BootCamp


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

@raul_fernandez, Hey. The forum says 1903v1 is the best but you need to block the updates. For me it did not work even though I stopped the service and one morning I woke up and the good old working configuration was gone. Until 2004, nothing worked for me. It is only with this version (2004) that I got a fugitive logon screen. Since I replace the PCI.SYS file it has been rock solid provided I plug the eGPU at cold boot (no hot plug). For a while now the updates of AMD or bootcamp drivers even install without using DDU provided I don’t tick “factory reset”. Some games will not work (I.e XPlane 11) and others are no problem at all. When I see the posts in the forum it seems dependent on the type of Mac hardware. Mine's apparently nice... Good luck and finger crossed. Cheers. Manu

 

MBP 13" 2018 4x TB3 - Razer Core X - RX5700XT - MacOS Catalina / BootCamp


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Raul Fernandez
(@raul_fernandez)
Active Member
Joined: 4 months ago
 
Posted by: @raul_fernandez
Posted by: @erik_tank
Posted by: @raul_fernandez
Posted by: @beslemma

Dear all,

Up on this topic. I have a MBP2018 13" 4x TB3 ports (so iGPU) working perfectly on Windows 10 (2004) with a Razer CoreX and a Sapphire Nitro+ RX5700XT if plugged in before booting. No hacks with EFI, simply had to downgrade PCI.SYS to get everything working.

Obviously the rule is "its works don't touch it!" but as matter of curiosity has the community a bit more feedback on Big Sur update and how it helps or breaks the ability to use eGPU in a bootcamp configuration.

Have a nice holiday season & stay safe,

Manu

Hey, buddy, I hope you're okay. I need help!!

I upgraded to Macos big sur and have had trouble using Windows + egpu.

I downloaded the version of Windows 10 1903 v1 which is the one that everyone tells me but I have no idea how I modify the file "PCI. SYS"

Can you help me?

If you use 1903 v1 without doing any windows updates, you already have the proper PCI.SYS file.  Don't use windows updates or it breaks by upgrading PCI.SYS.

I bloquid the updates manually, I clicked the file where it corresponded and when I went to turn on in bootcamp (windows) already with the pci.sys replaced as the blue screen appeared

 

I couldn't make it. I downloaded Windows 1903 v1, blocked updates, downloaded AMD drivers (April version) and did not load the windows. The only thing I don't have is the efi file but according to what I was told is that this version does not need the efi file. I need help. I am currently testing this with my wife's MBP 2017 that I buy along with mine and has the Macos Catalina.

Any recommendation friends?

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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AAE
 AAE
(@aae)
Active Member
Joined: 2 years ago
 

I've got Big Sur 11.01 and Windows 20H2 (OS build 19042.685). No problems here. All that I've done to set up is download the latest AMD drivers, use DDU to uninstall all drivers in safe mode, then disconnect from my network, restart and use Device Manager to manually install my AMD driver initially and as they are released. That's it. Never had issues doing it this way. 

This post was modified 3 months ago

2018 MBP 15" 2.9 GHz/1TB/32GB + Sonnet Breakaway 650 + ASUS ROG STRIX Radeon RX Vega64 8GB OC Edition + LG 34" Ultrawide via display port


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Erik Tank
(@erik_tank)
Trusted Member
Joined: 6 months ago
 

@raul_fernandez, I would recommend (no efi boot modification) - unplug as soon as windows starts to load - plug in TB3 cable once you login.  See if that springs it to life?

 

@aae, So you are running the latest windows updates, and the latest direct-from-amd drivers, and you do NOT use EFI bootloader?  No port dancing?  No hot plugging?  Do your Mac's have any dGPU, or is it just the intel gpu?  That's a totally different ballgame of resource allocation.  Also - when you do the driver installation via device manager - you're not running the actual installation software, you're just choosing the drivers - so you don't have the radeon software installed at all?  When I run the installer it tells me it's not compatible because I have a 5500m dGPU in my 16" 2019 MBP.  

 

2019 16" MBP - i9 - 32GB - 5500M 8GB - 1TB SSD w/eGPU 5700XT OC


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Raul Fernandez
(@raul_fernandez)
Active Member
Joined: 4 months ago
 
Posted by: @aae

I've got Big Sur 11.01 and Windows 20H2 (OS build 19042.685). No problems here. All that I've done to set up is download the latest AMD drivers, use DDU to uninstall all drivers in safe mode, then disconnect from my network, restart and use Device Manager to manually install my AMD driver initially and as they are released. That's it. Never had issues doing it this way. 

It's very complicated, I'll almost give up

 

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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Raul Fernandez
(@raul_fernandez)
Active Member
Joined: 4 months ago
 
Posted by: @erik_tank

@raul_fernandez, I would recommend (no efi boot modification) - unplug as soon as windows starts to load - plug in TB3 cable once you login.  See if that springs it to life?

 

@aae, So you are running the latest windows updates, and the latest direct-from-amd drivers, and you do NOT use EFI bootloader?  No port dancing?  No hot plugging?  Do your Mac's have any dGPU, or is it just the intel gpu?  That's a totally different ballgame of resource allocation.  Also - when you do the driver installation via device manager - you're not running the actual installation software, you're just choosing the drivers - so you don't have the radeon software installed at all?  When I run the installer it tells me it's not compatible because I have a 5500m dGPU in my 16" 2019 MBP.  

 

I haven't made any modifications to the efi yet. I have done my best, I turned on the egpu when Windows starts but does not recognize the egpu but install the drivers correctly, the automatic updates are off... I've followed all the protocol

 

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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AAE
 AAE
(@aae)
Active Member
Joined: 2 years ago
 

@erik_tank, That is correct - no standing on one foot, jumping and spinning around. You can see my configuration in my signature; I do have a dGPU. I plug in my eGPU, power up my MacBook and unless I was previously using Windows, I'll option+boot and choose Windows. As soon as I see the spinning dots beneath the Windows icon I close my Mac and wait for it to push to my external display. I can use any port, but I typically use the left side ports for my eGPU and ethernet so I have easier access to the audio port with how my desk is set up. From there, unless I'm switching back to macOS, I can reboot all day long and it launches back to Windows.

When AMD drivers come out I download and launch, and I also get the "oops" error, then I install them via Device Manager and restart. Oddly enough, yes, I do have the AMD software. Not sure if it actually did install after all or what, but it's there. Maybe it's part of AMD XConnect because I see that notice every time I boot up, which is their eGPU plug n' play software. 

I don't try to hot plug/unplug. I shut down if I want to disconnect. I can boot to Windows without the eGPU as well, but all that I do is game, so I don't. So, yeah. It was and is that simple as far as my own experience. 

@raul_fernandez, I can't speak for everyone, but for me it definitely was not complicated. I would suggest that you try my steps and see what comes of it. Note that I also use an external display connected to my eGPU, and I use a bluetooth keyboard/mouse, so... not sure how much of a difference this will make if you don't. I think that not having an external display creates more issues/complications from what I've read.

1. Install Windows via BootCamp. Once I set up Windows I would also make sure my keyboard & mouse were connected.

2. Download the software drivers for you GPU and download DDU.

3. Disconnect from wifi/ethernet and make sure that "auto connect" to wifi is not enabled.

4. Hold shift while choosing to restart through the Windows menu to restart to safe mode

5. Once booted into safe mode, use DDU to uninstall your Nvidia and intel drivers without restarting, then the AMD drivers without restarting, then choose to shut down.

6. Plug in your eGPU and make sure that it's powered on if you have to manually power it on. Again, I have an external monitor plugged into my eGPU. Macs boot when plugged into power, so be ready to option+boot to Windows. Once you see the spinning dots, close the Mac lid.

7. For me, this is when video pushes to my monitor. I then log in and launch the AMD driver installer and get the "oops! Something went wrong" error. I then use Device Manager to manually choose and install the driver for my GPU. The screen flashes and goes black for a long time, then comes back and I am prompted to restart. 

8. I simply restart and now I'm up and running. That's literally all that I did to get set up. 

 

2018 MBP 15" 2.9 GHz/1TB/32GB + Sonnet Breakaway 650 + ASUS ROG STRIX Radeon RX Vega64 8GB OC Edition + LG 34" Ultrawide via display port


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Raul Fernandez
(@raul_fernandez)
Active Member
Joined: 4 months ago
 
Posted by: @aae

@raul_fernandez, I can't speak for everyone, but for me it definitely was not complicated. I would suggest that you try my steps and see what comes of it. Note that I also use an external display connected to my eGPU, and I use a bluetooth keyboard/mouse, so... not sure how much of a difference this will make if you don't. I think that not having an external display creates more issues/complications from what I've read.

1. Install Windows via BootCamp. Once I set up Windows I would also make sure my keyboard & mouse were connected.

2. Download the software drivers for you GPU and download DDU.

3. Disconnect from wifi/ethernet and make sure that "auto connect" to wifi is not enabled.

4. Hold shift while choosing to restart through the Windows menu to restart to safe mode

5. Once booted into safe mode, use DDU to uninstall your Nvidia and intel drivers without restarting, then the AMD drivers without restarting, then choose to shut down.

6. Plug in your eGPU and make sure that it's powered on if you have to manually power it on. Again, I have an external monitor plugged into my eGPU. Macs boot when plugged into power, so be ready to option+boot to Windows. Once you see the spinning dots, close the Mac lid.

7. For me, this is when video pushes to my monitor. I then log in and launch the AMD driver installer and get the "oops! Something went wrong" error. I then use Device Manager to manually choose and install the driver for my GPU. The screen flashes and goes black for a long time, then comes back and I am prompted to restart. 

8. I simply restart and now I'm up and running. That's literally all that I did to get set up. 

 

Thank you for your response!!! When I get home, I'll try that method.

several questions:

did you have to use modified EFI?
Or is the modified Efi only for mbp 2017?
What version of windows do you have?
What version of Macos do you have?

 

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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