Just to chime in, after the supplemental mine also is:
Boot ROM Version: 1037.0.78.0.0 (iBridge: 17.16.10572.0.0,0)
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Catalina & eGPU...
- Thread starter SpitUK
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Boot ROM Version: 1037.0.78.0.0 (iBridge: 17.16.10572.0.0,0)
Yep same problem here with Sonnet + 580. Can't boot, I need to boot with HDMI and then connect the eGPU.
I just installed an MSI VEGA 56 in my Core X and everything is booting up fine. Except boot camp is giving me trouble. Boot camp worked perfect with my 580. I just clicked on update and I’m seeing full update bars and the apple and everything. I’m happy now. I also notice my pcie lane is now 16. I don’t think it was with my 580 but I could be mistaken. Note I’m not on betalina. Just release Catalina.
Yes Bootcamp gave me huge issues, I had the drivers installed, it turned out to be a Windows Update.. Gave me the dreaded error 12. I did fix it, By rolling back updates.. but I don't want to go through this every time. Apple does not Officially support eGPU and Bootcamp, so you can't get help there. Microsoft appears to throw the updates at the wall. I un installed Boot Camp, Took my old 580, put it in an I-7 6 core, 32 GB DDR4, a few M2 Drives and SSD's. Not counting the 580, it was about $300. Windows is now rock solid. My Win box is a beast in games.
I have seen stories of corrupt Bootcamp installs can bork the Mac OS.
No more Bootcamp for me. This morning I woke up, Catalina was up. Windows was up. When I did have the Bootcamp. I could not simply turn off my monitors. They would go black and never re-connect until a forced re-boot. I had to use a live screen server.
Now, I can turn off Catalina's monitor, It comes back in a flash in the Morning. If Im on the Windows Machine, I can turn off the monitor, and in the morning it lights up immediately with a lock screen.
I know not everyone has the finances, Or the space , or the time. This solution makes it great for me.
I ordered a Synolgy 918+ NAS, 30 TB. It allows me to use an IOS app, and remotely access it. That integrates with Files. App. Time machine backups are super easy, and all Server based. The NAS backs up to the cloud every night. (it also works like a charm serving 4k movies to my Apple TV.
I hope this helps a bit. Take care all, This forum is outstanding.
I have seen stories of corrupt Bootcamp installs can bork the Mac OS.
No more Bootcamp for me. This morning I woke up, Catalina was up. Windows was up. When I did have the Bootcamp. I could not simply turn off my monitors. They would go black and never re-connect until a forced re-boot. I had to use a live screen server.
Now, I can turn off Catalina's monitor, It comes back in a flash in the Morning. If Im on the Windows Machine, I can turn off the monitor, and in the morning it lights up immediately with a lock screen.
I know not everyone has the finances, Or the space , or the time. This solution makes it great for me.
I ordered a Synolgy 918+ NAS, 30 TB. It allows me to use an IOS app, and remotely access it. That integrates with Files. App. Time machine backups are super easy, and all Server based. The NAS backs up to the cloud every night. (it also works like a charm serving 4k movies to my Apple TV.
I hope this helps a bit. Take care all, This forum is outstanding.
Boot Rom from 10.15.1 Betalina 2 didn't fix anything 1037.40.120.0.0 (iBridge: 17.16.11077.5.1,0) 
LOL It did fix the icons. Glad to see that Apple is on the ball fixing the real important stuff!
Navi support confirmed on macOS 10.15.1 Beta2, on egpu.io there are tests with Macbook Pro, I await confirmation with Mac Mini 2018
So my new video card showed up today. Here are my findings:
1) I ordered a Vega 56, but my Mac detects it as a Vega 64. It's listed as such in my System Report as well as the eGPU icon. Is this behavior the same for everybody, or did I just happen to get lucky and get a Vega 64 instead?
2) It works fine in my Akito Node with the stock PSU. I thought for sure I was going to have to either upgrade the PSU or put the card in my OWC Mercury Helios FX.
3) I can boot up normally without having to disconnect the eGPU, and no white screens or any other odd behavior. whew.....
1) I ordered a Vega 56, but my Mac detects it as a Vega 64. It's listed as such in my System Report as well as the eGPU icon. Is this behavior the same for everybody, or did I just happen to get lucky and get a Vega 64 instead?
2) It works fine in my Akito Node with the stock PSU. I thought for sure I was going to have to either upgrade the PSU or put the card in my OWC Mercury Helios FX.
3) I can boot up normally without having to disconnect the eGPU, and no white screens or any other odd behavior. whew.....
I think you got lucky! So Congrats!! I do know you can re-flash a 56 with 64 bios. I'm not going to chance it. The performance I am getting with the 56 is amazing. I even moved World of Warcraft over to the Mac, 60 FPS in 4k, at "Ultra" setting. Life is good in Macvile.
Was it brand new or used?
If new
Some Vega56 can be BIOS flashed with Vega64 BIOS. The performance improvement is actually quite good.
I have not tried to do mine yet.
The only PC in the house is one I built for my son and is hard-line water cooled and I haven't wanted to drain the system to remove the gpu and try to flash the Vega....one day though ?
You can use this app from the app store which gives tons of information on your graphics card.
GLview Extensions Viewer
Unleash the power of your OpenGL 3D accelerator with the GLview, an essential tool designed for macOS 10.13 and above. Dive into an extensive renderer database spanning four major platforms, providing unparalleled insights into your graphics setup. Discover key features: Robust OpenGL 3D...
apps.apple.com
The Vegas do rock. I’m getting awesome performance gaming ultra high and 4K settings. I kept getting error 12 with windows and couldn’t boot. I worked on it for hours and hours. Tried everything. Then I plugged my thunderbolt cable into another port and walla started working every time I reboot perfectly. Weirdest thing ever.
I had the error 12, finally fixed it by rolling back a windows update. I was so tired of the Bootcamp merry go round, I deleted it and put together a gaming rig. Both Mac and PC are happy now, can't beat up on each other.
Yeah I tried rolling back from 418 and got an error message and thought I was done with windows until they update with a fix. I wish I could build a separate rig but can’t at the moment. It’s funny because at first I couldn’t boot Catalina then I couldn’t boot windows after I updated the card. Seems to be working fine now until another update lol. I only use windows for Star Trek online and dragon speech software.
I realize that a lot of people can't build separate rigs. If Bootcamp was 100% reliable, It would be great. You could max out the Mac with about half of what it takes to build a separate PC. Then throw monster specs at both. Well Life aint fair. Under Windows my eGPU was running at X4. Now In Mac only, it's X16. The fans were off the hook in Bootcamp, Now both rigs are dead silent.
I Now comnnect them both to a Synology NAS, and I'm in workstation Nirvana. I am getting monster network performance, and all around goodness. The Mac mini, Windows Gamer, and Synology still cost about the third of an iMac Pro load out.. so Life is Good.
I Now comnnect them both to a Synology NAS, and I'm in workstation Nirvana. I am getting monster network performance, and all around goodness. The Mac mini, Windows Gamer, and Synology still cost about the third of an iMac Pro load out.. so Life is Good.
I agree if bootcamp was 100% reliable it would be a dream. Awesome setup by the way. I need to check out the Synology NAS.