corei3cpu Posted July 10, 2020 Share Posted July 10, 2020 Hi, I previously had an HP z800 with dual 6-core Xeons ( 12-cores total ) and I was able to get it to work with OSX Sierra just fine. It booted and worked perfectly. I still have the USB thumb boot drives. So I recently purchased an HP z420. I want to install OSX Sierra. But the thumb drives dont work. I get a CPU Panic. The thumb drives I have worked with HP z400 with 6-core xeon and z800 with dual 6-core xeons. but will not work with the z420 with 8-core xeon. Here are some photos of the error messages I am getting and the config of my thump drives. Can someone identify why this thumb drive is failing. Actually, I still have the SSD from my HP z800 and i tried to boot from it to with these error messages. Please see photos. 1 Link to comment Share on other sites More sharing options...
Rocky12 Posted July 10, 2020 Share Posted July 10, 2020 @corei3cpu https://github.com/NTT123/Hackintosh-HP-Z420-MacOS-High-Sierra-10.13-10.14 Link to comment Share on other sites More sharing options...
corei3cpu Posted April 8, 2021 Author Share Posted April 8, 2021 I tried that EFI but it causes a panic on my computer. I have an 8-core Xeon and I add the correct kext for this. See photo for CPU Panic. Link to comment Share on other sites More sharing options...
theroadw Posted April 8, 2021 Share Posted April 8, 2021 What model CPU? Link to comment Share on other sites More sharing options...
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