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Gigabyte Z390 M Gaming build with working NVRAM

Joined
Apr 12, 2014
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233
Motherboard
Gigabyte Z390 M Gaming
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i7-9770K
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GTX 760
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Ooopppss...

I have to take back what I said. As I’ve been working on the motherboard, I haven’t been looking at the front of the case. The 2 front USBs on the case are blue 3.0, but the cable that was in the F_USB1 was from the card reader which has 2.0 and 3.0 ports. The 3.0 from the card reader exits as a standard blue connector to be inserted into a 3.0 connector on the back plane. The front USBs go into a double cable that goes into the F_USB30 connector...
 

pastrychef

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Motherboard
Gigabyte Z390 M Gaming
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i9-9900K OC'd @ 5.0GHz
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Vega 56 (Bios flashed to 64)
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Ooopppss...

I have to take back what I said. As I’ve been working on the motherboard, I haven’t been looking at the front of the case. The 2 front USBs on the case are blue 3.0, but the cable that was in the F_USB1 was from the card reader which has 2.0 and 3.0 ports. The 3.0 from the card reader exits as a standard blue connector to be inserted into a 3.0 connector on the back plane. The front USBs go into a double cable that goes into the F_USB30 connector...

You are going to hit the USB 15 port limit. You're going to have to pick and choose which ports you want to disable.
 
Joined
Apr 12, 2014
Messages
233
Motherboard
Gigabyte Z390 M Gaming
CPU
i7-9770K
Graphics
GTX 760
Mac
  1. iMac
  2. Mac mini
  3. Mac Pro
Classic Mac
  1. Classic
  2. SE
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Ah, I remember that you have mentioned that before. If you have a USB hub with 3 ports, does that count as 1 port (computer to the hub) or as 3?

Anyway, it looks like this:

Case Front: 2x USB 3.0
Card Reader: 1x USB 3.0, 3x USB 2.0
Back Plane: 4x USB 3.0, 1x USB 3.1, 1x USB 3.1-C
Fenvi: 1x ??

I could easily forgo the 3x USB 2.0 ports in the card reader if needed. Am I missing something? On second thought, that would probably kill the card readers, wouldn’t it?
 
Last edited:

pastrychef

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Joined
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Messages
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Motherboard
Gigabyte Z390 M Gaming
CPU
i9-9900K OC'd @ 5.0GHz
Graphics
Vega 56 (Bios flashed to 64)
Mac
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Ah, I remember that you have mentioned that before. If you have a USB hub with 3 ports, does that count as 1 port (computer to the hub) or as 3?

Anyway, it looks like this:

Case Front: 2x USB 3.0
Card Reader: 1x USB 3.0, 3x USB 2.0
Back Plane: 4x USB 3.0, 1x USB 3.1, 1x USB 3.1-C
Fenvi: 1x ??

I could easily forgo the 3x USB 2.0 ports in the card reader if needed. Am I missing something? On second thought, that would probably kill the card readers, wouldn’t it?

USB 2 ports count as 1.
USB 3 ports count as 2 (one USB 2, one USB 3).
USB 3.1 gen 2 counts as 2 (one USB 2, one USB 3.1).
The Bluetooth part of Wi-Fi/Bluetooth cards are just USB 2 devices so they count as 1.

All the ports you listed count as 26. You will have to choose 11 to disable.

Please see the following for more info.
 
Last edited:
Joined
Jan 19, 2019
Messages
24
Motherboard
Gigabyte Z390 M GAMING
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i7-8700K
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RX 560
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Hi pastrychef,

I am encountering some issue with my WiFi (I have exactly the same card as you). It seems that there's a conflict with the country code in MacOS (US) and my router (which should be : CH or DE) [btw I live in the Italian speaking part of Switzerland].
When I was using Clover, I had read somewhere that you could set this parameter "brcmfx-country=#a".
I've tried it with brcmfx-country=DE but there's no change.
By chance Do You know if there's something similar in OpenCore ?
Thanks a lot
 

pastrychef

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Gigabyte Z390 M Gaming
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i9-9900K OC'd @ 5.0GHz
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Vega 56 (Bios flashed to 64)
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Hi pastrychef,

I am encountering some issue with my WiFi (I have exactly the same card as you). It seems that there's a conflict with the country code in MacOS (US) and my router (which should be : CH or DE) [btw I live in the Italian speaking part of Switzerland].
When I was using Clover, I had read somewhere that you could set this parameter "brcmfx-country=#a".
I've tried it with brcmfx-country=DE but there's no change.
By chance Do You know if there's something similar in OpenCore ?
Thanks a lot

You can try the exact same boot argument in OpenCore. Add it to config.plist > NVRAM > 7C436110-AB2A-4BBB-A880-FE41995C9F82 > boot-args. You can add it to the end of the line after a space.
 
Joined
Jan 19, 2019
Messages
24
Motherboard
Gigabyte Z390 M GAMING
CPU
i7-8700K
Graphics
RX 560
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  1. iMac
  2. MacBook Pro
Mobile Phone
  1. iOS
You can try the exact same boot argument in OpenCore. Add it to config.plist > NVRAM > 7C436110-AB2A-4BBB-A880-FE41995C9F82 > boot-args. You can add it to the end of the line after a space.

Thanks a lot pastrychef, it worked. Unfortunately I am having some troubles with the signal's strength.
 

pastrychef

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Thanks a lot pastrychef, it worked. Unfortunately I am having some troubles with the signal's strength.

Try using 5GHz only. Bluetooth is known to interfere with 2.4GHz Wi-Fi.
 
Joined
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Messages
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Motherboard
Gigabyte Z390 M Gaming
CPU
i7-9770K
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GTX 760
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  2. Mac mini
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  2. SE
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USB 2 ports count as 1.
USB 3 ports count as 2 (one USB 2, one USB 3).
USB 3.1 gen 2 counts as 2 (one USB 2, one USB 3.1).
The Bluetooth part of Wi-Fi/Bluetooth cards are just USB 2 devices so they count as 1.

All the ports you listed count as 26. You will have to choose 11 to disable.

Please see the following for more info.

The image below shows my card reader. Above it is a CD/DVD unit that communicates via SATA. Cables out the back of the card reader are a Molex for power, a SATA, the USB 2.0 that runs to F_USB2 and a USB-A cable that connects to a USB 3.0 port on the back panel.

So...

  • What I gather from the USB Port document is that I have the ability to specifically select which ports to disable. For the 3x 2.0 ports, I can choose to select 2 of the 3 to disable, for example.
    • How do the card readers communicate? It appears that the only choices are either USB or SATA. If it is USB, does that count as additional port(s)? If they do communicate over USB, then will disabling any (or all) of the USB ports on the reader prevent the card readers from functioning? (Crudely worded, I know)
    • The 3.0 port on the card reader connects to a USB-A 3.0 port on the back panel. For 3.0 ports, is that counted as 1x or 2x?
  • ESB 3.0 ports require 2.0 and 3.0 definitions. I assume this is what allows backward compatibility. Is it possible to disable the 3.0 definition and have the port function only as a 2.0?
  • If I use a 3.0 port to connect to a hub with, say, 3x 3.0 ports, is that counted as 1x, 3x or 4x 3.0 ports? The reason that I ask is that when finished, my Hackintosh is going into a compartment under my desk with a door. It would be easier to connect a hub and place it external to the computer compartment rather than leaving the door open when I want to connect USB ear phones, for example.

    7DB9BD59-D63E-4F69-AC40-3FB00F7715E6.jpeg
 
Joined
Jan 19, 2019
Messages
24
Motherboard
Gigabyte Z390 M GAMING
CPU
i7-8700K
Graphics
RX 560
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  2. MacBook Pro
Mobile Phone
  1. iOS
Try using 5GHz only. Bluetooth is known to interfere with 2.4GHz Wi-Fi.

I have now switched the steering features off and will observe how it works for a while.

Wish You all a Merry Christmas and a Happy New Year
 
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