PCIe Wifi Card (Fenvi T919) not recognised about gigabyte-z490-vision-g-hackintosh-opencore

[5T33Z0]

I am not using WiFi on this board, so I can't help you with that. For some users it works, for other's it doesn't

Please read this https://github.com/5T33Z0/Gigabyte-Z490-Vision-G-Hackintosh-OpenCore/blob/main/I225_stock_vs_cstmfw.md

Also: If you use the DMAR replacement table, then you also have to enable the drop rule to drop the OEM DMAR tabe (in ACPI/delete)

[MathieuUrstein]

I'm using MacOS Big Sur 11.6.5 so I did the following:

<key>#PciRoot(0x0)/Pci(0x1C,0x1)/Pci(0x0,0x0)</key>

<string>I225-V Patch. Required tor macOS 10.15 up to 11.3 only!</string>
<key>Count</key>
<integer>1</integer>
<key>Enabled</key>
<false/>

<key>boot-args</key>
<string>dk.e1000=0 -allow_assetcache agdpmod=pikera</string>

I still have the stock firmware so to achieve this:


I did the following:

<key>DisableIoMapper</key>
<false/>

Then I did the following which should be related to DMAR dropped / replaced

<string>Drop OEM DMAR Table</string>
<key>Enabled</key>
<true/>

<string>DMAR replacement table for 3rd Party WiFi/Ethernet</string>
<key>Enabled</key>
<true/>

I'm left with the DMAR (OEM) which I'm not sure what it refers to?

[5T33Z0]

OEM = Original Equipment Manufacturer = the original, unmodified DMAR table. I think there's an error in my table, but this doesn't concern you, since you are using Big Sur

• Vt-D needs to be enabled in BIOS!
• DisableIOMapper = false
• Original DMAR droppend and replaced
• Disable the Booter and Kernel Patches for the VMM stuff:
  • Skip Board ID check
  • Reroute HW_BID to OC_BID
  • Force IOGetVMMPresent
  • Reroute kern.hv_vmm_present patch (1)
  • Reroute kern.hv_vmm_present patch (2)
  • Disable Library Validation Enforcement
  • Catalina Patch can be disabled but doesn't matter really
• try without boot-arg dk.e1000=0

BTW: 3rd Party relates primarily to 3rd Party Ethernet Cards, not Wifi per se!

[MathieuUrstein]

Ok, I tried pretty much every combination, and the following worked for me:

Vt-D: Enabled
DisableIoMapper: Enabled
DMAR (OEM): No
DMAR (dropped/replaced): Yes/Yes

With that I have I225-V and the PCIe card working 👍
Thanks for your help.

[5T33Z0]

Good to hear. But DisableIOMapper basically disables Vt-D in macOS so, you might as well turn Vt-D off.

[5T33Z0]

@MathieuUrstein Can you please try with Vt-d disabled and report if it still works? Thanks.