Easy eGPU setup in Windows 2004 20H2 with Apple Bootcamp and AMD Navi cards (201...
 
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Easy eGPU setup in Windows 2004 20H2 with Apple Bootcamp and AMD Navi cards (2018 Mac Mini) easy easy  

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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 

Hey, today my Bootcamp installation ran a Windows cumulative update for Win 2004 20H2. (I have Windows set to automatically install these, keeping-up-to-date)

My eGPU set up continues to work beautifully.

I'm using AMD's 20.4.2 driver from a year ago - which performs very well - but stellar eGPU performance is also now available from AMD's latest 21.4.1 driver. 

Good times. 🏂🏻 🏂🏻 🏂🏻

 

 

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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cgWerks
(@cgwerks)
Trusted Member
Joined: 3 years ago
 
Posted by: @mini-i5

Grab a 2018 Mac Mini and MacOS Big Sur 11.2

I wonder how important Big Sur is in the success here. I'm on Mojave, and can't really move on yet as I have a couple key apps w/o compatibility beyond Mojave.

As of July 24, 2021: 2018 Mac mini (i7, 16 GB RAM, 256 GB SSD) - Blackmagic eGPU (RX580) - Mojave 10.14.6 - (haven't succeeded past Win10 1809)


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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 

@cgwerks, Maybe Apple has included similarly improved Mac Mini firmware in the Feb 2021 Mojave security update.

 

 

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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cgWerks
(@cgwerks)
Trusted Member
Joined: 3 years ago
 
Posted by: @mini-i5

@cgwerks, Maybe Apple has included similarly improved Mac Mini firmware in the Feb 2021 Mojave security update.

Heh, if 'improved' means not working. Shocked  

I really don't know who is to blame, as there are so many variables. I had it working with older windows (1809, and I think it updated to 1903 and was still working, and then some auto-update finally killed it), but I can't recall if I was running Mojave at that point yet (or especially when firmware updates were done).

I picked up an extra HDMI cable so I can use an HDMI switch box I have to wire both HDMI ports, as that will make testing a bit easier. I'm about to go at it again. Wish me luck!

As of July 24, 2021: 2018 Mac mini (i7, 16 GB RAM, 256 GB SSD) - Blackmagic eGPU (RX580) - Mojave 10.14.6 - (haven't succeeded past Win10 1809)


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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 

@cgwerks, Good luck. Hope the Blackmagic eGPU works with Windows 2004 20H2 (since it only costs $699 - which in 2021 is like a single family home only costing $699 😅) 

 

 

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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cgWerks
(@cgwerks)
Trusted Member
Joined: 3 years ago
 

@mini-i5, Hehe, I hope I can get it going in any version of Windows at this point. LoL

Yeah, the price of GPUs has gone nuts. It seemed so expensive when I bought it, but now it's not such a bad deal. The other day I was joking in a crypto-mining forum that maybe a Mac Pro with quad Vega Pros isn't such a bad deal anymore either (given a single higher-end - not even as high end as the Mac Pro ones - is going for $thousands). The Mac Pro would actually keep all those GPUs powered properly, cool, stable, etc. which seems the tricky aspect for the home-builders.

 

As of July 24, 2021: 2018 Mac mini (i7, 16 GB RAM, 256 GB SSD) - Blackmagic eGPU (RX580) - Mojave 10.14.6 - (haven't succeeded past Win10 1809)


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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 

I'm continuing to roll with the latest version of Windows in Bootcamp on my 2018 Mac Mini

My eGPU setup been 100% reliable and trouble-free since installing Win 10 20H2 four months ago.

I have Windows set to install updates automatically. And I manually install some optional ones - including last month's Win 10 21H1 feature update.

Here's a list:

Windows installed updates

The 2018 Mini is all about that eGPU life. 👍🏻

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 

AMD's newest 21.6.1 driver is more performant than 21.4.1 in the latest Win 10 version 21H1.  

I'm enjoying smoother gameplay in Control using the game's High Quality settings in Fullscreen mode with Render Resolution set to 1440p. (This is on my Previous-Gen-Not-a-Gaming-Card)

Control 21.6.1 driver
Lobby
Director's Office

And I'm continuing to see good Open CL compute performance in Blender Cycles GPU rendering.

Blender Nishita Sky 21.6.1 driver

Don't bother with Geekbench 5 though. It's doing Geekbench things. Spitting out bogus numbers running in Win 21H1. 

 

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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Koncept_Zero
(@koncept_zero)
Trusted Member
Joined: 2 years ago
 

@mini-i5, Great write up OP. A couple questions -

1. For "Shut down and attach your external display to your eGPU" do you leave the egpu powered on the whole time and only shut down the mini? At this stage do you also unplug the HDMI?

2. How long do you hold the power button down to get the mini to restart? 

 

2018 Mac Mini [8th,6C,B] + RX 5700 XT @ 32Gbps -TB3 (Razer Core X) + macOS 11.6 + Win10 21H2 [build link]  

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Mini i5
(@mini-i5)
Prominent Member
Joined: 2 years ago
 
Posted by: @koncept_zero

@mini-i5, Great write up OP. A couple questions -

1. For "Shut down and attach your external display to your eGPU" do you leave the egpu powered on the whole time and only shut down the mini? (Yes) At this stage do you also unplug the HDMI? (Yes)

2. How long do you hold the power button down to get the mini to restart? (For the normal duration - a couple seconds or so)

 

 

2018 Mac Mini + AMD RX 6600 XT (Sonnet Breakaway Box 650) Monterey 12.1 pending + Windows 21H1

 
2018 Mac Mini [8th,6C,B] + RX 6600 XT @ 32Gbps-TB3 (Sonnet Breakaway 650) + macOS 12.0 & Win10 21H1 [build link]  


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