The final Windows 10 external + eGPU setup
 
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The final Windows 10 external + eGPU setup  

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Francesco Ripa
(@francesco_ripa)
Active Member
Joined: 5 months ago
 

I am so happy with this external Bootcamp setup and full eGPU support. This can be done on any TB3 Mac with any USB 3.0 external drive (preferably SATA/NVME).

Specifications:

WINDOWS 10 DISK SPEED IS SLOWER COMPARED TO INTERNAL BOOTCAMP DUE TO USB 3.0 AND SATA/NVME SPECIFICATIONS.
 
10+ FASTER THAN ANY OTHER USB 3.0 FLASH DRIVE.
 
EGPU IS FULLY COMPATIBLE WITH AMD SOFTWARE/BIOS SETTINGS.
Also available:
 
Windows Updates (as of February 2021)
AMD Official Drivers (as of February 2021)
Official Drivers Updates
 
Step-by-step installation: link 1, link 2 and link 3
 
  1. Prepare macOS to boot from the external drive.
  2. Install Windows 10 via VirtualBox on the external drive.
  3. Download Bootcamp drivers via Brigadier.
  4. Patch EFI partition <apple_set_os.efi v0.5>.
  5. Boot Windows 10.
  6. Install Bootcamp drivers.
  7. Install Bootcamp updates and reboot.
  8. Install Windows updates (many), drivers updates (optional, many) and reboot.
  9. Disable FaceTime Camera device.
  10. Once everything is up-to-date, turn off the computer.
  11. Turn on the computer with eGPU hot-plugged in Port 1 (try all available ports if this one does not work), press any key in apple_set_os.efi v0.5, boot into Windows 10.
  12. Install AMD drivers and ALWAYS reboot with eGPU connected in apple_set_os.efi v0.5.
  13. Done.

Note 1: Only one port will work with the eGPU. (Tested on TB3 port 1 of 2 ~ MacBook Air 2019)

Note 2: Windows 10 standby will disconnect the eGPU.

System specifications:
 
MacBook Air 2019 <MacBookAir8,2>
Hub USB 3.0 x2 + PD <Power Delivery 60W> USB-C <TB3>
Hub USB 3.0 x4
Keyboard (for Windows 10 installation)
Mouse (for Windows 10 installation)
WD WD3200AAKX 320 GB, SATA 6 GB/s, 3.5”
SATA to USB-A/B 3.0 adapter
Radeon RX 570 4 GB GDDR5
be quiet! TFX Power 2 300W Gold
macOS software:
 
macOS 10.15.7
Bootcamp software:
 
Windows 10 2H20
Windows Support (Bootcamp drivers)
Screenshot(s): image 1, image 2 and image 3

2019 MacBook Air (MacBookAir8,2, 1,6 GHz, 8 GB) + RX 570 @ R43SG-TB3 + macOS 10.15.7 & Win10


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