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

[Inqnuam]

Interim Update #3:

• With the new BIOS, Thunderbolt Bus ID is automatically assigned to each controller.
• In this case we have:
  • Z390 Designare with built-in Titan Ridge
  • GC-Titan Ridge add-in card with modified NVM33 flashed to the card (and DROM section set to same as real Mac)
    • NVM33 does not cause crashes in Big Sur.
  • SSDT for each controller contains no NHI device properties, hence all properties are auto-generated by Apple's PEI and DXE drivers inserted into the Gigabyte BIOS.
• Here we can see Bus IDs 0 and 1 automatically assigned.

Wonderfull!!

 

[brousseau6933]

No, this only overwrite whole firmware with a standard's one.

Downloaded firmware is flashable with Gigabyte tool like Q-Flash, which overwrite some regions and keep your personal datas (Serial number, MAC address,..) and profils.
I don't remember if NVRAM is also cleared after Q-Flash firmware update.

NVRAM is cleared after Q-Flash.

 

[shakayx]

Attached is the original, unmodified NVM50 from Z490 Vision D.

Can I use this firmware for X299X DESIGNARE 10G？thanks.

 

[CaseySJ]

Can I use this firmware for X299X DESIGNARE 10G？thanks.

This is the original NVM50 firmware. If you flash this to the X299X, it won’t enable Thunderbolt Bus in macOS. It may allow TB4 hubs to connect, however.

Of course, always backup the existing firmware from the X299X, and flash it back if new firmware does not work.

 

[CaseySJ]

Interim Update #3:

• With the new BIOS, Thunderbolt Bus ID is automatically assigned to each controller.
• In this case we have:
  • Z390 Designare with built-in Titan Ridge
  • GC-Titan Ridge add-in card with modified NVM33 flashed to the card (and DROM section set to same as real Mac)
    • NVM33 does not cause crashes in Big Sur, and USB controller works properly.
  • SSDT for each controller contains no NHI device properties, hence all properties are auto-generated by Apple's PEI and DXE drivers inserted into the Gigabyte BIOS.
• Here we can see Bus IDs 0 and 1 automatically assigned.
  • This is because ThunderboltDROM and ThunderboltConfig are properly generated. These two properties are responsible for Bus ID among other things.

Interim Update #1D:

• We are trying to determine why Apple TB-to-Gigabit Ethernet adapter does not work in Big Sur.
• Elias has narrowed it down to Vt-d.
• On my Z390 Designare, enabling Vt-d, disabling DevirtualiseMmio, and removing boot argument dart=0 still fails to instantiate the AppleVTD device in IOReg.
• But this works on Elias' Z390 Designare. Elias is not home at this time, so we'll wait to determine what other configuration differences there are between our two systems.

 

[Sapricot]

I attempted to flash the modified F9i (0xEA one) today but the computer didn’t come back after restarting. It just boot cycles without ever reaching bios and the backup bios doesn’t come on.

Since you guys do all this flashing I was hoping maybe you have some trick I can try to get it to boot. I’ve tried resetting cmos and force restarting, and desperately removed everything except cpu and ram and plugged monitor into motherboard hdmi but it hasn’t made a difference.

I was on F7 before if that makes any difference.

 

[xtreem.p]

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

I have property IOPCITunnelL1Enable to 0x1, yours is at 0x0 ... Have you tried with another thunderbolt device ? I have successfully connected the following Thunderbolt devices (in Big Sur): Belkin Thunderbolt 3 Dock Pro PowerColor Gaming Station X eGPU The Apple Thunderbolt-to-Gigabit...

www.tonymacx86.com

cant wait for this

 

[CaseySJ]

I attempted to flash the modified F9i (0xEA one) today but the computer didn’t come back after restarting. It just boot cycles without ever reaching bios and the backup bios doesn’t come on.

Since you guys do all this flashing I was hoping maybe you have some trick I can try to get it to boot. I’ve tried resetting cmos and force restarting, and desperately removed everything except cpu and ram and plugged monitor into motherboard hdmi but it hasn’t made a difference.

I was on F7 before if that makes any difference.

@Sapricot,

Sorry to hear about the problem and apologies for not making it known that BIOS F8 or F9i (which have the new GUI) must be installed first. I have modified the post accordingly, and to be safe, stated that official version of F9i should be installed first.

In your case, please see the manual for the process of initiating a BIOS flashback -- or contact Gigabyte Tech Support via the Gigabyte website. If BIOS flashback is not possible, it may be necessary to use an external SPI Flash ROM reader/writer to reprogram the BIOS chip. We can use a Raspberry Pi or 3.3V CH341a programmer for this. I can provide the binary file that will need to be flashed. But before going down this path, let's see if you can trigger BIOS flashback.

---

All:
I have modified the post to say that BIOS F9i (official version) must be installed first. Then we can install the modified F9i on top.

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

This is actually my handiwork! :) The first one is conditionally injected in Mojave only and supports product names up to iMac19,1. The second one is conditionally injected in Catalina and Big Sur, and supports product names up to iMac20,2. It uses newer Xcode framework that does not work in...

www.tonymacx86.com

 

[Sapricot]

@Sapricot,

Sorry to hear about the problem and apologies for not making it known that BIOS F8 or F9i (which have the new GUI) must be installed first. I have modified the post accordingly, and to be safe, stated that official version of F9i should be installed first.

In your case, please see the manual for the process of initiating a BIOS flashback -- or contact Gigabyte Tech Support via the Gigabyte website. If BIOS flashback is not possible, it may be necessary to use an external SPI Flash ROM reader/writer to reprogram the BIOS chip. We can use a Raspberry Pi or 3.3V CH341a programmer for this. I can provide the binary file that will need to be flashed. But before going down this path, let's see if you can trigger BIOS flashback.

---

All:
I have modified the post to say that BIOS F9i (official version) must be installed first. Then we can install the modified F9i on top.

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

This is actually my handiwork! :) The first one is conditionally injected in Mojave only and supports product names up to iMac19,1. The second one is conditionally injected in Catalina and Big Sur, and supports product names up to iMac20,2. It uses newer Xcode framework that does not work in...

www.tonymacx86.com

Oh crap probably should’ve asked first. Well you live and learn. Someone said they managed to get it to flashback after leaving it off for 12h so trying that first.

If I do need to reflash externally do you have a spi rom device you recommend? I have a rasppi 4 and I’m in the UK so availability might be different to Australia or US.

 

[CaseySJ]

Oh crap probably should’ve asked first. Well you live and learn. Someone said they managed to get it to flashback after leaving it off for 12h so trying that first.

If I do need to reflash externally do you have a spi rom device you recommend? I have a rasppi 4 and I’m in the UK so availability might be different to Australia or US.

Raspberry Pi 4 is a good choice. The wiring diagram and instructions are located here:

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

I do not have one so I think that the best choice would be to buy the: https://www.reveltronics.com/en/shop/18/7/chip-programmers/revelprog-is-serial-device-eeprom-flash-programmer-usb-detail The only difference is I could go get it now. I tried the RPi last night with a (badly) doctored set...

www.tonymacx86.com

I can also provide (a) location of chip on motherboard, and (b) binary file to flash.

Meanwhile please have a look at above post to familiarize yourself with the overall procedure.

Update: Here's the location of BIOS chip on Z390 Designare: