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A quick update for anyone following along. After much work I found both a hardware issue (monitor DP port partially defective - odd, would not work on real MacPro, would work at degraded refresh rate on one Hackintosh with 5700) and potential software problem. The system is working well now...

Thanks so much, CaseySJ! Once I get this system up and running reliably I will turn my attention back to the other one and figure it out. Will report back when I have news to share.

Hi @CaseySJ, while I'm still trying to track down my problems with my Z390 install, my parts for the Z490 arrive this week. I have a flashed GC-Titan Ridge Thunderbolt 3 card and wanted to use that, as well as a Syba 10gb NIC that has worked well for me in the past. I can use either an RX 580...

Hi All, I am still trying to sort out my problem with Zoom. In the meantime I am also trying to sort through my monitor configurations and have a few questions. For reference, I have two hackintoshes (largely the same builds except one has an rx580 and the other a 5700 xt) that are connected...

Thats great to hear - thank you. I will try the same over the next week.

@StefanAM Thanks for the suggestion. Have you seen this solve a similar problem before? I realized this happened after the latest Catalina update that hung on install, so I am rebuilding the machine to see if the problem is not with the boot loader (I have now observed it happening with both...

Yes, that's right. Even OC with WEG 1.4.0 exhibits screen blanking while using Zoom. I'm going to rebuild a fresh system and see if there is something else at play here.

It's only when using Zoom that I've noticed it - other applications seem ok. Just tried OC with downgraded Lilu and WEG and had screen blanking. I am using Platform ID 0x3E980003.

@CaseySJ, I followed your advice and was surprised with what I found. I am running into the display problems (display connected via TB blanking out every minute or so while using Zoom) with both Clover 5120 and OC 0.6.0 using Lilu 1.4.6 and WEG 1.4.1. However, the problem does not happen using...

Interesting point. The Thunderbolt monitor configuration is new and post-OC install, so I wasn’t explicitly holding this to be OC related, but you may absolutely be right. Let me run this using Clover and then come back with answers to your questions. I’ll come back with specific answers...

Hi everyone, I am having an interesting issue with my Designaire and am looking for some advice on how to troubleshoot/isolate the problem before I proceed down the path of simplifying my system materially. I have updated my Designaire to boot OC and am running the latest Catalina. I am using...

@CaseySJ Want to update that the ATEN 7220 Thunderbolt Switch (TB2 with Apple TB2->TB3 adapters) is working well on my flashed Designaire running Catalina. The unit can be hot plugged. USB and display (DP and HDMI) work well. Unable to get it to work on the first Big Sur Public Beta. Update...

SOLVED: Wonderful guide again - am up and running on Big Sur Beta and OC without a hitch. The OC guide was fantastic, thank you CaseySJ! One thing that isn't working is my Syba 10gb NIC. Has anyone had a similar issue? I'll try to troubleshoot more this afternoon but thought I'd ask first...

Thanks for clarifying, Casey. The Camlink 4K has a USB3 port and is plugged into my motherboard USB3 port. I haven't been using OBS, only as a webcam. If there is something I can do to test it using OBS and report back, pls let me know - happy to help.

If it's helpful, I'm running Casey's 390 golden build with a flashed motherboard thunderbolt chip and use the Camlink 4K flawlessly. I had troubles at first when I had the add-in Titan-Ridge card, which was always giving me some stability problems. I decided to simplify, pulled the add-in...

Ah, got it. I thought for some reason flashing both would be a problem. Thanks for clarifying.

@CaseySJ, I may have missed this in earlier guides/discussion, but why is it not an 'and'?

Thanks for clarifying. I’m going to monitor my system instability and see if I can isolate it over the next few weeks. Fingers crossed!

Hi CaseySJ, it is the Designaire, flashed per the guides. You made a SSDT file for me to correct where the card was showing up on my computer, otherwise the Bus ID configuration seems to be correct. I'm attaching the IOReg file, and shots of the system information for both cold and warm boots...

Is it normal for a system with a flashed motherboard and GC-Titan-Ridge add in card to only show the internal thunderbolt bus on a cold boot, but both busses on a warm boot? I consistently have that behavior and also a little system instability, so before I start simplifying the system to...