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Gigabyte Z390 M Gaming build with working NVRAM

pastrychef

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Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
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Ok, I'm incredibly happy I went with your guide.
I did an installation for my dad using a different board and it wasn't so smooth and easy :).

Do you know if there is an option to disable m.2 port in this motherboard bios?
For now I'm on sata III SSD, but I plan on switching to nvme for mac boot drive, and doing windows on sata III. I heard it's a good practice to disable/disconnect mac drive when booting into windows, and if I can't disable m.2 I would go with sata for mac :).

Thanks again!

I don't remember if there's a BIOS option to disable the NVMe slot(s)... But you shouldn't have to disable drives with macOS when booting Windows. I never do.

The only time you may want to disable or unplug the macOS drive is when installing Windows or Linux.
 

pastrychef

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Joined
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Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
Mac
  1. MacBook
  2. Mac Pro
Classic Mac
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Ok. I heard that windows update tends to mess with other drives.
But it is good to hear that :).

Windows updates are only a problem if you install macOS and Windows on the same drive. If they are on separate drives, it's not a problem.
 

pastrychef

Moderator
Joined
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Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
Mac
  1. MacBook
  2. Mac Pro
Classic Mac
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Looks like my uptime marathon will have to come to an end at just shy of 7 weeks... Need to restart to install macOS 10.15.6...

Screen Shot 2020-07-15 at 4.26.48 PM.png
 
Last edited:

pastrychef

Moderator
Joined
May 29, 2013
Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
Mac
  1. MacBook
  2. Mac Pro
Classic Mac
  1. iBook
  2. Power Mac
  3. PowerBook
Mobile Phone
  1. iOS
macOS Catalina 10.15.6 updated fine. Took ~19 minutes and two restarts.

Screen Shot 2020-07-15 at 4.50.42 PM.png

Btw, don't try this with Big Sur Public Beta yet. The bootloaders need updating unless you want to go through some convoluted installation.
 

pastrychef

Moderator
Joined
May 29, 2013
Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
Mac
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  2. Mac Pro
Classic Mac
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For the brave and the adventurous...

Attached is the latest beta BIOS F9k for the Gigabyte Z390 M Gaming.

Biggest changes that I can see are:
1. CFG Lock can be enabled or disabled directly from BIOS. We no longer need to do it from Grub shell!!
2. The return of the ability to enable or disable Serial Port.
3. The French BIOS issue seems to be gone.

I also tested the CNVi slot. Unfortunately, the whitelist is still there and we still can't use the slot for a macOS compatible Wi-Fi/Bluetooth card.

Note that, after flashing, trying to get in to BIOS with my monitor resulted in just a black screen. I had to connect it to my TV to be able to see the BIOS screen. After I made my BIOS settings, I reconnected it to my monitor and was able to see the BIOS screen again. I think this is just some weird issue with my monitor though or maybe it was CSM...

If you decide to try this BIOS, unzip it and put it on a Fat32 formatted USB flash drive. Then use the Q-Flash function in BIOS to update the BIOS. Just to be safe, I did not update the backup BIOS to this version.

* Disclaimer: I take absolutely no responsibility if you brick your motherboard!! You use this BIOS entirely at your own risk!!
 

Attachments

  • Z390MGAMING.F9k.zip
    6.7 MB · Views: 204
Last edited:

pastrychef

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Joined
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Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
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Classic Mac
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Does the macOS update require some extra steps?
Or I should update it like a regular mac?

Do it like you would on a real Mac.
 
Joined
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Motherboard
GIGABYTE Z390 M Gaminig
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RX 580 4GB
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Update went well, thanks. I have an issue with sleep, it looks like system is waking up, but there is no signal from display.
Should i reconfigure something because I have integrated graphics? (it wasn't working before update)
 

pastrychef

Moderator
Joined
May 29, 2013
Messages
18,841
Motherboard
Asus Z370-G Gaming (Wi-Fi AC)
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
RX 6600 XT
Mac
  1. MacBook
  2. Mac Pro
Classic Mac
  1. iBook
  2. Power Mac
  3. PowerBook
Mobile Phone
  1. iOS
Update went well, thanks. I have an issue with sleep, it looks like system is waking up, but there is no signal from display.
Should i reconfigure something because I have integrated graphics? (it wasn't working before update)

Does it sleep and wake up or does it never go to sleep?
 
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