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The OpenCore Install Guide mentions the following ACPI files are needed for Comet Lake systems: Note that the current versions for these SSDTs are available from the OpenCore-0.9.9-RELEASE/Docs/AcpiSamples/Binaries folder. Your SSDT-EC.aml file should be replaced with SSDT-EC-USBX.aml (unless...

There is a full Sonoma 14.4.1 version installer available here. Look for the chart labeled "macOS Sonoma Final Full Installer" and click on the "InstallAssistant.pkg" at the top of the list. That will download a full installer (enclosed in an app). After you have it, running the app will put the...

There are also questionable files in your EFI/OC/ACPI folder... would you please zip your current EFI folder and upload it here?

In EFI/OC/config.plist/Platforminfo/Generic/UpdateSMBIOSMode you have Value = Custom. At least for Comet Lake, the following text in the guide is worth noting:

Niconaco, your EFI/OC/Kexts/UTBMap.kext/Show Contents property list shows 19 USB ports (see below). There should be a maximum of 15 ports in MacOS. Also, In config.plist/Kernel/Quirks/XhciPortLimit you have Value = YES, which causes all possible USB ports to be active. With a USBMap.kext...

Your config.plist has many differences from the OpenCore Install Guide for tenth-generation Intel-based computers; see here.

Go here, click on the green "Code" button and then "Download ZIP." [Edit: Sorry, there is no "NootRX.kext" in that folder... don't know how to find a proper release.]

In your config.plist: 1. In Booter/Quirks/EnableWriteUnprotector you have Value = YES; the guide says NO. But see this: 2. In Kernel/Add/3, you have Enabled = YES. If I look at EFI/OC/Kexts/UTBDefault.kext/ShowPackageContents/info.plist/IOKitPersonalities/XHC1, I see no USB ports listed. Is...

?? 10.15 is MacOS Catalina, right? Thought you were trying for MacOS High Sierra, 10.13.6 (latest High Sierra).

Clearing the CMOS (momentarily jumpering those two pins on the Z170N motherboard) might help.

Have you tried resetting your cable modem/WIFI router?

Still waiting... vandroly is Ukrainian, right? Hope he's okay. [Edit: No public release of 1.0.0 as of 04/25/2024]

Looking at your EFI folder... EFI/OC 1. Some notes about /ACPI folder: 1a. SSDT-AWAC-DISABLE.dsl note says it is for 300-series only, and you have a Z490. 1b. SSDT-DTGP.dsl is not listed in OpenCore-0.9.9-RELEASE package and therefore the .aml version is not in /Docs/AcpiSamples/Binaries...

Yes, the titles of your various "alternate" plists will not be recognized by OpenCore. You need at least one titled "config.plist" or nothing will happen.

Indeed. But there is a catch: OpenCore-0.9.9-RELEASE/X64/EFI/OC/Drivers contains OpenHfsPlus.efi. But, as it has always been, OpenCore-0.9.9-RELEASE/Docs/Sample.plist/UEFI/Drivers/2/Path Value is HfsPlus.efi! Unless that Value is changed to OpenHfsPlus.efi, there will be no enabled Driver. I...

Did you make a full installer of Sonoma using Apple's "makeinstallmedia" procedure? And you have an EFI folder in the correct partition of your USB drive? If so, could you upload the (zipped) EFI folder here, after deleting your serial numbers in Platforminfo/Generic?

Your text says giga Z390 but your description at left says Z490. Which is it? And can you describe what happens in more detail?

Thanks for that tip!

gundogg, is the two-position BIOS switch on your Nitro Plus set in the forward position? (Mine won't work switched to the rear.)

My "Alder" ("Mini-ITX 5") computer has been running well. All the games play well without stuttering, Windows Update works occasionally as an "auto update" and power usage seems normal. Idle is around 44 watts, and game playing consumes around 105-125 watts, depending on which game and what's...