Strange Problem iMac Pro + Radeon VII eGPU in Windows 10 1903
 
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[Solved] Strange Problem iMac Pro + Radeon VII eGPU in Windows 10 1903  

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(@keith_walls)
Eminent Member
Joined: 3 years ago
 

I was successfully running an AMD Radeon VII as an eGPU with an iMac Pro. I upgraded the dot release of Windows 10 1903 and the bootcamp.com drivers and now the eGPU no longer works- the dreaded "Error 12" problem. Any ideas of what may have changed and how to fix it?

Update: OS Build 18362.329 made AMD eGPU almost impossible to resolve error 12. Rollback to earlier build.

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

@keith_walls My recommendation is to run DDU and remove the Radeon graphics drivers. This driver removal process also disassociate the eGPU to the Thunderbolt port/PCIe connection. Once that is complete, you can download the latest modified Radeon drivers for your iMac Pro from bootcampdrivers.com.

 

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2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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(@keith_walls)
Eminent Member
Joined: 3 years ago
 

I used DDU, reinstalled drivers, and it made no difference. The eGPU still generates an Error 12. Thanks.

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

What's the procedure you use for connecting the eGPU in Boot Camp?

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

 
2020 13" MacBook Pro [10th,4C,G] + RX 5700 @ 32Gbps-TB3 (Prototype eGPU Enclosure) + macOS 10.15.4 & Win10 1903 [build link]  


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