Ashutosh2425 Posted September 8, 2020 Share Posted September 8, 2020 Hi I want to install "Mac os high Sierra" on a "10th gen Intel build" please help me out here, I'm newbie in hackintosh, I don't want to install Catalina, there are some particular reason why I want to install high Sierra on this build. Specifications of my pc build are as of following - CPU - Intel core i7 10700k Motherboard - Gigabyte Z490 Aorus Pro AX Graphics card - Sapphire pulse Radeon RX 580 LITE 8Gb Audio - ALC 1220 - VB Ethernet - RAM - 2 × 8 Gb G.skill Ripjaws ddr4 3200mhz SSD - 2 × 500 Gb WD nvme m.2 HDD - 2TB Seagate barracuda PSU - Gigabyte B700H Cooler - Deepcool 360mm AIO ( P.S. - I know my specs are new and high Sierra is old OS but I still want to install Mac os high Sierra on my 10th gen build and not Mojave Catalina or any new version of macos ) Quote Link to comment Share on other sites More sharing options...
MaLd0n Posted September 8, 2020 Share Posted September 8, 2020 https://www.insanelymac.com/forum/topic/344053-install-macos-catalina-big-sur-on-mobos-serie-400-with-intel-10th-desktop-processors-using-opencore-or-clover-bootloader/ 1 Quote Link to comment Share on other sites More sharing options...
shiecldk Posted September 14, 2020 Share Posted September 14, 2020 (edited) @Ashutosh2425 @MaLd0n @HervéI'm also interested in this topic. I saw someone on github was able to run High Sierra with an i5-10400: https://github.com/SchmockLord/Hackintosh-Intel-i9-10900k-Gigabyte-Z490-Vision-D/issues/43 I think it has something to do with the use of Emulate,Cpuid1Data, and Cpuid1Mask options in OpenCore: https://github.com/SchmockLord/Hackintosh-Intel-i9-10900k-Gigabyte-Z490-Vision-D/blob/master/EFI/OC/config.plist https://github.com/SchmockLord/Hackintosh-Intel-i9-10900k-AsRock-Z490-Phantom-ITX-TB3 Let me know if you are able to boot into High Sierra! Edited September 15, 2020 by shiecldk Quote Link to comment Share on other sites More sharing options...
shiecldk Posted September 15, 2020 Share Posted September 15, 2020 Ok, so I have confirmed that I can boot into High Sierra with vectorseven's OC EFI files from GitHub for Asrock Z490 Phantom Gaming-ITX/TB3. I think it's mostly some OpenCore settings to get it to boot. The SMBios has to be <iMac18,3 unless you're using the -no_campat_check flag to boot, which I haven't tested yet. Quote Link to comment Share on other sites More sharing options...
HenryV Posted November 4, 2020 Share Posted November 4, 2020 You would do well to forget about installing anything less than Catalina or Big Sur if your hardware supports them. If I recall correctly, even Mojave is not fully compatible with the newest Big Sur APFS container disk/slice/snpshot structure. Even Catalina's Disk Utility was not able to replicate a Big Sur container to backup when tested. Recently Big Sur's ASR was able to replicate to a backup medium in recovery mode, but the backup was not bootable with the same open core config as the source. With the recent changes, at this point anything less than Catalina doesn't have a significant advantage unless you need that particular version for some reason(s). Quote Link to comment Share on other sites More sharing options...
maly70 Posted February 15, 2021 Share Posted February 15, 2021 Hi Mates, I have Gigabyte Z490 Elite Ac, I am running High Sierra with OC and running Mojave, Catalina and Big Sur(11.2.1) my cpu is Intel 10th gen 10400F Quote Link to comment Share on other sites More sharing options...
maly70 Posted February 15, 2021 Share Posted February 15, 2021 29 minutes ago, maly70 said: Hi Mates, I have Gigabyte Z490 Elite Ac, I am running High Sierra with OC and running Mojave, Catalina and Big Sur(11.2.1) my cpu is Intel 10th gen 10400F ***UPDATE*** I am installing now Sierra on z490, now at 2nd stage of installation Quote Link to comment Share on other sites More sharing options...
kentsoon Posted May 14, 2021 Share Posted May 14, 2021 @maly70 could you share your EFI folder. Did you use opencore or clover? Quote Link to comment Share on other sites More sharing options...
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