TomP

Solved all of the above but hibernation (also bluetooth is not really working properly) with opencore bootloader and lots of tweaking, including SSDTs, USB mapping and GPU id spoofing, by reading guides mainly from GitHub and other sites. If anyone wants details about what I have done, PM me. If anyone knows how and you want to help with a cleaner build, you are welcome!

Send me iMac-Pro-Thomas.zip Installed Monterey 12.6.2 via installation USB which I made on one of my other hackintoshes (i3 10100-RX580 8GB running Catalina 10.15.7), with Monterey image I downloaded from Apple, using Clover EFI default folder from Olarila. Specs: M/B: Gigabyte Z690 Aorus Master CPU: Intel i9 12900K GPU: Sapphire RX 6900 XT 16GB Toxic Extreme Edition (vendor id 0x37af, not the usual 0x73bf) Memory: Teamgroup T-Force Delta 2X16GB DDR5 @ 6400MHz (XMP 40-40-40-76 recognised) NVME1: Patriot Viper VP4300 lite 2TB containing Windows 11, installed before Monterey and loading without problems with Olarila clover boot loader NVME2: WD Black SN850 500GB containing Monterey Installation went smoothly. USB seems to be working, sound (ALC 1220) is heard through the speakers of my Gigabyte M28U monitor through DisplayPort. Issues: 1. GPU is recognised as "AMD Radeon Navi21 16GB". I don't think that hardware acceleration works. Unfortunately the vendor ID is not the 0x73bf supported OOB for rx 6900 xt, but the 0x73af which I tried to spoof in clover devices without success. Both monitors (GA M28U and Samsung U28E590) work in their native 4k resolution but at low frame rates. They only work at their highest frame rates (144 and 60Hz accordingly) in 2560X1440 resolution. 2. CPU is recognised as "Processor 3,19 GHz unknown", although all 24 logical cores are reported to work (but no hyper threading is reported). 2. Ethernet is not recognised (Aquantia Marvel AQtion 10G), even with the "force Aquantia" quirk in clover. 3. Wi-Fi and Bluetooth are reported but do not work (Intel AX210 160MHz 6E 802.11ax 2T2R & BT 5). 4. Sleep doesn't work. 5. Continuity and hand-off are out of the question without Wi-Fi and BT. Any help would be greatly appreciated. The system is still quite powerful today, and I would love to see what MacOS can do with it. I attach the results of the RunMe.app Thanks in advance!

[ref]MaLd0n[/ref], disabling FireWire solved the shutdown issue (along with some random stalling and beach ball turning)! Only thing remaining is the sleep issue, but I can live without it ?

I use the clover shutdown fix in both configs. Only works in one...

Tried 15,1 with same results...

[ref]MaLd0n[/ref], shutdown does not work with this configuration. It works when I load Mojave using clover from an EFI folder of another SSD where I have Sierra installed, with no use of DSDT. I attach Send.me file using that configuration (where shutdown works without DSDT), can you find out which options enable shutdown? Do you think it's OK to use this configuration for Mojave as well as Sierra or should I change some options in my previous configuration? Clover version is the same (4910). Send me user1s-imac.zip

Here it is. Thanks again MaLd0n! Send me user1s-imac.zip

[ref]MaLd0n[/ref], thank you for the DSDT, could you please check my config.plist too?

Thank you for this guide! I installed Mojave 10.14.4 on a socket 775 board (Gigabyte GA-P35-DQ6) with a Xeon X5460 CPU (SSE 4.1) modified for socket 775, and a Nvidia GTX 960 graphics card. Install went smoothly, on a WD SSD converted to AFPS (needed to disconnect all other drives first, ended up connecting the SSD with a USB adapter to overcome the "resources not found" error, after that everything was fine). Before booting from the SSD (which I had installed internally again) I replaced the com.apple.telemetry.plugin in S/L/UserEventPlugins with the one from High Sierra 10.13.6. After that Mojave booted flawlessly from the SSD with your 775 clover folder. Only thing I changed was SMBIOS to iMac 14,1. Everything works (full metal support with GTX 760 working OOB in dual DVI monitor setup, audio, ethernet), except sleep (computer shuts down completely). Can you please help me fine tune my system? I would appreciate a DSDT and config.plist suggestions. Thanks again! Send me user1s-imac.zip

Can you please help me with DSDT patch? I would really appreciate it, as I have never patched a DSDT file. I attach the Send me.zip file created with RunMe.app. P.S. my Sapphire R9 270 GPU worked fine on my other hack (i5 4690k, GA-Z97-HD3) on Yosemite, Sierra, High Sierra and Mojave, with fake ID 0x68101002, Futomaki framebuffer and Inject ATI in clover. It still works on this build with Yosemite and Chameleon Bootloader (full QE/CI and double monitor support), but not on currently installed High Sierra (10.13.6) with clover Bootloader. I am obviously doing sth wrong. Even adding fake ID directly to AMD7000controller.kext and AMDRadeonX4000.kext didn't do the trick (black screen when the apple logo was supposed to appear). Any ideas? Send me imac-thomas.zip