[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

CaseySJ · Oct 21, 2020

DJ_Mic said:
Hi @CaseySJ i tried to use my previous eGPU (ADT-Link R43SG-TB3) and here is the same thing, the GPU doesn't get recognized.
The good thing on the ADT-Link is, i can use the end-part as nvme storage case/connection.
So i plugged in my nvme ssd and than i got this error message on hot-plug
View attachment 492624

Cold-boot doesnt work and i dont get this message, only at hot-plug.

This even doesnt appear when i plug one of my eGPU's (Razer Core X and ADT-Link R43SG-TB3)

Edit: I checked on Windows if there my eGPU get recognized, same thing, before that firmware flash it worked on windows 10.

Edit2: I uploaded the ioreg with the original firmware and plugged in egpu (cold-boot).

Flashing the controller does not guarantee success. Different motherboards react differently. To a large degree the behavior we see is the best we can realistically expect. However, it is possible to “cross-pollinate” by flashing the Designare Z390’s NVM 33 into your controller. If the situation does not improve, simply restore the original firmware.

DJ_Mic · Oct 21, 2020

CaseySJ said:
Flashing the controller does not guarantee success. Different motherboards react differently. To a large degree the behavior we see is the best we can realistically expect. However, it is possible to “cross-pollinate” by flashing the Designare Z390’s NVM 33 into your controller. If the situation does not improve, simply restore the original firmware.

Okay thank you very much, i tried to flash the designare firmware and the internal thunderbolt hardware is not recognized.
Maybe i have to give up on this :yawn:

cl0nd0n · Oct 21, 2020

CaseySJ said:
It would be best to perform a clean installation on a spare SATA SSD mounted in an external USB 3 enclosure or internally to an available SATA port.

@CaseySJ - quick one - if I try a clean install of Catalina or BigSur beta on to an external USB3.1 disk, do I need to copy over the System Serial, System UUID, MLB from my current Catalina install or does OC generate new ones? I didn't know if you can get a clash with more than one 'install' of OSX running the same serials?

Ploddles · Oct 21, 2020

cl0nd0n said:
@CaseySJ - quick one - if I try a clean install of Catalina or BigSur beta on to an external USB3.1 disk, do I need to copy over the System Serial, System UUID, MLB from my current Catalina install or does OC generate new ones? I didn't know if you can get a clash with more than one 'install' of OSX running the same serials?

No, you don't need new S/N etc, your current ones will be fine.

cl0nd0n · Oct 21, 2020

Ploddles said:
No, you don't need new S/N etc, your current ones will be fine.

Great thanks - I just didn't want to cause a clash. Just need to test out a clean instal on a separate disk to try OpenCore and see if I can move away from Clover. So just copy all my existing over in to the new OC config.plist. Thanks.

CaseySJ · Oct 21, 2020

shiecldk said:
Yes, please check the attachments. I would much appreciate it. I am currently using Clover (OpenCore works too but the EC SSDTs has some problems, which cause a little laggy experience compared to Clover) and remove the SMbios info in the EFI.zip.

Alright, please try the following two different experiments.

Experiment #1:

Flash the attached Alienware-M15-TB3-FW-MOD-4-Casey.bin to the Thunderbolt firmware chip.
Use the same Thunderbolt SSDT from the previous test (SSDT-TB-HackinDROM.aml).
Perform a cold boot with and without TB3 device connected. Check hot-plug as well.
Do your Thunderbolt devices connect and operate?
If problems persist, try the next experiment.

Experiment #2:

Flash the original Thunderbolt firmware back to the chip.
We will use an SSDT to enable Thunderbolt Bus. This SSDT requires the original Thunderbolt firmware.
Download the new SSDT: SSDT-TbtOnPch-Alientware-M15.aml
Copy it to the CLOVER/ACPI/patched folder and remove any previous Thunderbolt SSDT.
Copy the attached config.plist to the CLOVER folder. This version simply adds a new ACPI rename, which you may disable if the experiment fails.
Perform a cold boot with and without TB3 device connected. Check hot-plug as well.
Do your Thunderbolt devices connect and operate?

CaseySJ · Oct 21, 2020

DJ_Mic said:
Okay thank you very much, i tried to flash the designare firmware and the internal thunderbolt hardware is not recognized.
Maybe i have to give up on this

I know it can be frustrating, but eGPUs are among the most complex Thunderbolt devices. Simpler Thunderbolt devices may work.

Lkevin30 · Oct 21, 2020

if we flash the thunderbold firmware of the gigabyte designare can we put an imac 2011 as a monitor

CaseySJ · Oct 21, 2020

Lkevin30 said:
if we flash the thunderbold firmware of the gigabyte designare can we put an imac 2011 as a monitor

This might work. You're referring to Target Display Mode.

wiiwelshman · Oct 21, 2020