What am I doing wrong? Blackmagic eGPU

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MariusFischerStudios

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  • Joined: Wed Jul 29, 2020 10:32 am
  • Real Name: Marius Fischer

What am I doing wrong? Blackmagic eGPU

PostWed Jul 29, 2020 10:44 am

Hey Guys,
I've bought a Blackmagic eGPU a few days ago and it arrived yesterday.
I've plugged it in and installed the eGPU Update.
After that I had to update my Thunderbolt 3 Firmware, which I did.
Started my Mac again and the eGPU disconnects all the time.
Shut down Mac, clean install Catalina, start in recovery mode, disable T2 Safety, reboot, install eGPU update again, reboot, update Thunderbolt 3 Firmware again and still disconnection all the time.
What am I doing wrong?

Mac mini 2018
Mac OS 10.15.6
3,2GHz 6-Core i7
32GB RAM

Thunderbolt 3 Firmware Version: 47,4
Link Controller Firmware: 1.34.0
eGPU Firmware: 50,3

Also tested without any other USB-C device and all Thunderbolt ports.

Thanks for your help!
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Uli Plank

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  • Joined: Fri Feb 08, 2013 2:48 am
  • Location: Germany and Indonesia

Re: What am I doing wrong? Blackmagic eGPU

PostThu Jul 30, 2020 10:35 am

Try a clean install of Mojave. It works perfectly fine for me.
Resolve Studio 16.2.2 and Fusion Studio under MacOS Mojave 10.14.6
iMac 2017 Radeon Pro 580 8 GB VRAM and 32 GB RAM
Mac mini 16 GB RAM plus eGFX Breakway Radeon RX 580
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MariusFischerStudios

  • Posts: 2
  • Joined: Wed Jul 29, 2020 10:32 am
  • Real Name: Marius Fischer

Re: What am I doing wrong? Blackmagic eGPU

PostThu Jul 30, 2020 10:41 am

Thanks! I've tried to install Mojave yesterday, but it wasn't possible the "normal" way, because my Mac was delivered with Catalina already.

I've bought a new Thunderbolt 3 Cable, since the original one was too short anyway.
The Cable was delivered a few hours ago. Plugged it in and now everything works fine.

The Problem was basically that Apple/Blackmagic delivered a broken Thunderbolt 3 Cable with the eGPU.
Don't know how that can happen, but my problem was solved!
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Uli Plank

  • Posts: 7414
  • Joined: Fri Feb 08, 2013 2:48 am
  • Location: Germany and Indonesia

Re: What am I doing wrong? Blackmagic eGPU

PostFri Jul 31, 2020 12:51 pm

Over the years, I've seen quite a few cables going bad (or being DOA).
Resolve Studio 16.2.2 and Fusion Studio under MacOS Mojave 10.14.6
iMac 2017 Radeon Pro 580 8 GB VRAM and 32 GB RAM
Mac mini 16 GB RAM plus eGFX Breakway Radeon RX 580

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