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[SUCCESS] Gigabyte Designare Z390 (Thunderbolt 3) + i7-9700K + AMD RX 580

Glad to hear it! Did you have to do anything special (i.e. did you have to deviate from the Build Guide) to install a fresh copy of Catalina?

This might be due to missing "rc scripts" in Catalina. Because the System is mounted in its own read-only volume, Clover/MultiBeast is unable to install those scripts. The scripts are necessary for managing NVRAM, which in turn is necessary for Messages and FaceTime. It may also be necessary for Sidecar (don't quote me on that though).

You could try running the Clover installer manually by downloading it from the SourceForge website (just Google for "clover boot loader"), but first it will be necessary to re-mount the System volume with read-write permissions. Don't worry, the permissions will revert to read-only when you reboot.

To remount the System volume with read-write permissions:
  • Run Terminal
  • Type sudo mount -uw /
See details here.

I'm not sure whether the Clover installer will work in Catalina, but feel free to try it. Here's a quick guide. WARNING: You assume all risk for carrying out this procedure! Please make full bootable backup first.

Follow Steps 1 and 2:
View attachment 430221

Then turn on:
  • Clover for UEFI booting only
  • Install Clover in the ESP (ESP = EFI System Partition)
  • Install RC scripts on the target volume
View attachment 430222
Then click Install.

After that, reboot and see if you can log in to Messages and FaceTime.

Man you rock! That was exactly the problem, now everything is working, although the first time that I tried the Sidecar I got a strange black screen with a white bar I just restarted and it is working now. There is any way that I can pay you a beer or should I donate to the site?

Speaking about the clean install, I miss spoke, in fact I installed Mojave and after I got it to boot I made the upgrade to Caralina before installing anything else besides the post install stuff.
 
hello CaseySJ, I need to know how stable is your system. Do you have any issue with daily usage? How about nvram problem ? Would you advice me to wait for 10th gen processors and new chipset? That's all I want is a stable hackintosh.
 
I still can't mount the EFI partition, but I still have the bootlog. Apparently, there's nothing that can be done to get my EFI back? So I was wondering if I could re-install without formatting the target hard disk, so I wouldn't have to reinstall all my applications. I spent an hour with Microsoft support just to get Office up and running again.
  • If an EFI partition exists, it can always be mounted (which is different from being bootable) after booting into macOS.
  • An EFI partition is created automatically by Disk Utility when we format a drive using Scheme = GUID Partition Map.
  • In order to make an EFI partition bootable on a Hackintosh, it must contain both the BOOT and CLOVER folders.
  • If a drive already has an EFI partition, there is no need to reinstall the O/S. We can just copy everything from another EFI partition onto this one.
  • But if a drive does not have an EFI partition (in other words, the drive was not formatted with Scheme = GUID Partition Map), then it may be necessary to reformat the whole drive and reinstall macOS.
 
I want to build a hackintosh with the same parts as your. After I did some research, I see that everyone complains about nvram problem with z390 chipset. I want my hackintosh works smooth without any problem. So should I wait the 10th gen processors with new chipset or just build the hackintosh with your complements. I'm also planning to upgrade to catalina when the rx 5700xt supported.
hello CaseySJ, I need to know how stable is your system. Do you have any issue with daily usage? How about nvram problem ? Would you advice me to wait for 10th gen processors and new chipset? That's all I want is a stable hackintosh.
  • We use EmuVariableUEFI with "rc scripts" to provide a software solution for NVRAM. This is not ideal, but it works quite well and allows the system:
    • To reboot correctly (because macOS writes some system-state info to NVRAM first)
    • To shutdown correctly (because macOS writes system-state info to NVRAM)
    • To log in to FaceTime and Messages (because of security keys stored in NVRAM)
  • Most of the complaints or issues on this system are actually not due to NVRAM!
  • I expect to build a new Hackintosh using 10th Gen components, but 10th Gen desktop processors are not expected until about March or April of 2020.
  • My Designare Z390 has been and continues to be extremely stable. But my system is also fairly conservative in that I have:
    • 32GB total DRAM using 4 x 8GB DIMMs. If you use 32GB DIMMs, watch out!!
    • Only 1 Discrete GPU. If you use multiple GPUs, watch out.
    • Only 1 monitor. If you use multiple monitors, just find a routine that works each time. Use only modern monitors with both HDMI 2.0+ and DisplayPort 1.2+ ports.
  • I also make frequent full system backups. Before installing any major third-party application or third-party kext, make a backup first.
Also keep this in mind:
  • If you visit the Apple Support forum (on Apple's own website) you will be shocked by how many complaints or issues are reported on real Macs.
  • No system -- whether Hackintosh or real Macintosh -- is going to be 100% reliable with every peripheral and every software.
 
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When I get to load the XMP profile of the Ram the computer starts but I don't get it on the monitor the Bios goes directly to the start of the apple system.
Can you clarify what you mean by "I don't get it on the monitor"?
  • When you enable X.M.P. Profile 1, can you boot into macOS?
  • If so, does macOS show the correct memory speed or the slow speed?
  • Do you also have Windows installed on this system?
  • If so, what memory speed appears in Windows?
  • Do you have another computer that you can install this memory into?
  • If so, what speed appears in the O/S on that computer?
 
@CaseySJ I am using a Vega 64 and I have tried several SMBIOS and iGPU settings. I get the best performance plus working DRM streaming in iTunes, working Netflix in Safari and fastest H264 and HEVC (8 bit) encoding in Final Cut Pro with the following settings:

iMacPro1,1 SMBIOS plus iGPU in headless mode (with all the needed settings in Devices -> Properties in config.plist)

When using iMac19,1 instead the performance seems the same, but DRM streaming in iTunes and Netflix in Safari doesn’t work. Using
shikigva=32 and shiki-id=Mac-7BA5B2D9E42DDD94 solves the iTunes DRM problem, but not the Safari Netflix problem.

When using iMacPro1,1 with iGPU disabled iTunes DRM and Netflix in Safari works, but video encoding in Final Cut Pro is much slower.

So is there any reason why I should not combine iMacPro1,1 with iGPU in headless mode, since this seems to be the only combination where everything is working and where I have the best performance at the same time?
This is a good summary. Based on other users' reports it seemed that macOS will not boot with iMacPro1,1 if iGPU is enabled, but your experience is quite the opposite. If IGPU does indeed work with iMacPro1,1 then by all means keep it enabled. I may have to reverse my earlier statements! :)
 
This is a good summary. Based on other users' reports it seemed that macOS will not boot with iMacPro1,1 if iGPU is enabled, but your experience is quite the opposite. If IGPU does indeed work with iMacPro1,1 then by all means keep it enabled. I may have to reverse my earlier statements! :)

I might give this a test myself to see if it boots.

I will have to switch back to Clover+free2000 to do so, as the reason I turned iGPU off and switched to iMacPro1,1 was to not use free2000. I don't think I actually tried booting iMacPro1,1+Headless iGPU+free2000.
 
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