2018 Mac Mini [8th,6C,B] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15....
 
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2018 Mac Mini [8th,6C,B] + RX 5700 XT @ 32Gbps-TB3 (Razer Core X) + macOS 10.15.6 & Win10 2004  

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jazzdogg
(@jazzdogg)
Active Member
Joined: 9 months ago
 
System specs:
2018 Mac Mini (2020) 8th Gen i7 3.2 Ghz, 8GB RAM, 256GB SSD
Windows 10 2004 (19041.508)
 
 
eGPU hardware:
MSI Radeon RX 5700 XT Gaming X 8G
2.0 Meter (79”) OWC 40Gb/s Thunderbolt 3 100W cable
 
 
Hardware Pictures:
IMG 0714
IMG 0720
IMG 0723
 
 
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!
 
Comments:
My goodness, what a difference 6 months has made. My previous build on a 2019 13” MBP with the old build of windows was such a pain, not to mention that old version of Windows had issues with Oculus VR software, however now it's SO very easy. No special windows versions needed. Props to @gizzer3010 who I built this guide off, except no longer needing special builds versions of windows.
 
Only issues I’m currently experiencing is in Windows when I right click on the desktop and select Display Settings, the app begins to load and crashes. Inconvenient as I have a second display I wish to disable. I suspect this is due to display drivers.
 
Benchmarks:
None yet, will update when I can!

 

(edited: added pictures and removed the creepy as heck eGPUio smiley at the end)

This topic was modified 3 weeks ago

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]  


gizzer3010 and itsage liked
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itsage
(@itsage)
Illustrious Member Admin
Joined: 4 years ago
 

@jazzdogg, There's progress with newer Windows 10 versions and glad to hear it's getting easier with Boot Camp eGPU setup (on a select few Macs). If you notice lower performance than expected, try Radeon Adrenalin 20.4.2 drivers.

 

external graphics card builds
best laptops for external GPU
eGPU enclosure buyer's guide

 
2018 Mac Mini [8th,4C,B] + RX Vega 56 Nano @ 32Gbps-TB3 (Gigabyte Gaming Box) + macOS 11 & Win10 2004 [build link]  


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gizzer3010
(@gizzer3010)
Active Member
Joined: 2 months ago
 

Glad the build helped @jazzdog! 

Are you using the latest AMD drivers direct from their website? I've noticed my only issue since moving to 5700XT and using the amended drivers is that streaming frame rates are _terrible_. 

 

Mac Mini - Windows 10 - Razer Core X Chroma - Sapphire Radeon RX 5700 XT Nitro+ SE

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


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jazzdogg
(@jazzdogg)
Active Member
Joined: 9 months ago
 
  • @gizzer3010, crickey I haven’t noticed that yet. Streaming as in streaming your own screen to an online service?

 

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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gizzer3010
(@gizzer3010)
Active Member
Joined: 2 months ago
 

@jazzdogg, tbh it could be using Twitch’s streaming app, but I remember getting better frame rate using my 580. 

Did you download direct from AMD?

 

Mac Mini - Windows 10 - Razer Core X Chroma - Sapphire Radeon RX 5700 XT Nitro+ SE

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


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Eightarmedpet
(@eightarmedpet)
Noble Member Moderator
Joined: 4 years ago
 

@jazzdogg, this may sound stupid, but when you say "When the installation is finished, click restart and again unplug the eGPU." do you mean unplug the eGPU as soon as you click restart or unplug it in the down time between switching off nad switching back on again? Because I would assume the former could cause a BSOD.

Great to see you have it working with a pretty simple set up! Would love to see pics...

 

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

 
2017 13" MacBook Pro [7th,2C,U] + RX 5700 XT @ 32Gbps-TB3 (Mantiz Venus) + macOS 10.15.4 & Win10 2004 [build link]  


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jazzdogg
(@jazzdogg)
Active Member
Joined: 9 months ago
 
  • @eightarmedpet, either way works. I did it whilst Windows was shutting down. It won’t BSOD because it’s not running anyway. (Edit: removing the emote because the Smiley is creepy)

 

This post was modified 4 weeks ago

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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Michael Behn
(@michael_behn)
New Member
Joined: 4 weeks ago
 

Hi,

I have the same configuration, Windows 10 installed and running on an external USB-3 disk.

When using it in normal office work it works fine, but when starting games I got a black screen

and the computer hangs after some minutes.

Any idea how to fix this? 

Mac Mini 2018, 3.2 GHz 6-Core I7, 32 GB, Razer X with Radeon 5700 XT, Win 10 2004 on USB3 drive


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

@michael_behn, I played some War Thunder installed on a USB-C Samsung T5 last night and had no issues. Are you also running a Mac Mini 2018 w/ eGPU 5700 XT, except your W10 install is on an external USB volume?

 

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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Michael Behn
(@michael_behn)
New Member
Joined: 4 weeks ago
 

correct.

I found the Problem. Semester to be a heat problem. I limit the frequency to 80% and increased the speed of the cooling fan. Now everything works fine. It‘s still fast enough with graphic Level set to high at FS 2020

This post was modified 4 weeks ago

Mac Mini 2018, 3.2 GHz 6-Core I7, 32 GB, Razer X with Radeon 5700 XT, Win 10 2004 on USB3 drive


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