Noted, thanks
. BTW, is there anything in the config.plist > Kernel & Kext Patches that I need to re-enable for now? Specifically the USB Port Limit Patch? Could this be causing issues, as it's disabled right now from the EFI you shared?
The USB port limit patch might anyway not work for 10.14.2. If some of your USB3.0 connectors do not work actually, you can also use the USB3.1 connectors for the macOS installation.
In general it would be recommended to use a truncated 15-port XHC USB kext, which makes any port limit patch totally obsolete and yields a fully vanilla X299 system, as Skylake-X is fully natively supported anyway.
@Ellybz, I was just having a look to the XHC USB kext implemented in your EFI-Folder. Unfortunately, yet is has several flaws..
It seems to be a fully implemented HXC USB kext not really suited for 10.14.2. With SSP6 being the highest implemented port, your actual port-count value was wrong. It must be 16000000 instead of 1a000000.
Also port number entries have been missing in the kext for ports HS09 to HS12.
I assume HS01/SSP1 and HS02/SSP2 are assigned to F_USB30_1, HS03/SSP3 and HS04/SSP4 to F_USB30_2, HS05/SSP5 to USB30_LAN2 and HS06/SSP6 to USB30_LAN1. Please verify.
Unclear remains to me, which USB2.0 headers and USB2.0 connectors ports HS07 to HS14 are assigned to. Please clarify and add USB port-layout.rtf for the Designare EX to your kext.
In addition to the fully implemented kext, we would need the truncated 15-port XHC USB kext, which also should contain the same port-layout.rtf.
Could you provide a final version of both kexts within a subsequent post? I would directly implement them in the XHC USB kext Github library.
@BoomR should implement then directly your truncated 15-port kext and remove the inconsistent XHC USB kext currently implemented in his EFI-Folder.
For the finalisation of both kexts (fully implemented and truncated 15-port XHC USB kexts), please use my modified guess kexts attached below.
In my actual guess for the 15-port XHC USB kext, HS03/SSP3 and HS04/SSP4 have been removed from the kext. The respective internal connector F-USB30_2 should be functionless. Please verify. I also removed HS14 to stay within the 15-port limit, without having any clue to which USB2.0 connector HS14 is actually assigned. Please clarify USB2.0 header and USB2.0 connector assignment of HS07 to HS14.
Both fully implemented and truncated USB kexts attached below, yet contain my port-layout.rtf for the ASUS Prime X299 Deluxe. Please properly adapt and modify for the GA X299 Designare EX.
@BoomR, until
@Ellybz provides the final versions of the fully implemented and truncated 15-port kexts for the Designare EX, you can also use my 15-port guess kext attached below. By this you do not need to worry about an USB port limit patch anyway, as the latter becomes fully obsolete.
