corei3cpu 12 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. Rocky12 1 Link to post Share on other sites
Rocky12 534 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 post Share on other sites
corei3cpu 12 Posted Thursday at 04:52 AM Author Share Posted Thursday at 04:52 AM 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 post Share on other sites
5T33Z0 126 Posted Thursday at 06:06 AM Share Posted Thursday at 06:06 AM (edited) I'd try this one instead, since it's from yesterday (contains Clover as well): https://github.com/joepool/Hackintosh-HP-Z420-OpenCore Edited Thursday at 06:08 AM by 5T33Z0 Link to post Share on other sites
theroadw 6 Posted Thursday at 12:54 PM Share Posted Thursday at 12:54 PM What model CPU? Link to post Share on other sites
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