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No hokus pokus - No magic I am basically making this more current and simplifying it for people with HP Z800 wanting to run Sierra. With a bit more detail on the BIOS settings All credit really goes to: chatdeau, Rockey12 and ZoroZZ for helping out and creating the first topic on the HP Z series found here I am not sure who to credit for the kexts but a big THANK YOU to whoever you are! The HP Z series is very powerful and affordable computers which I simply think is a brilliant Hackintosh solution. MY HW Specification : HP Z800 with BIOS version : 3.60 CPU: x2 6-core X5690 RAM: 32 GB GFX: ATI HD5870 SSD: Samsung SSD 840 EVO 250GB What you need. - A HP Z800/600 (obviously) - A working computer running Mac OS X - A 8gb or higher USB 2.0 key - Mac OS X Sierra app - Latest CLOVER - The Attached Kexts Step one – BIOS Update Update your BIOS to the latest (currently it is 3.60 Rev.A 14 Apr 2016) Download there The easiest way is to run the flash tool on a Windows installation. Step two – BIOS settings Setup the BIOS settings with the following settings. Please keep in mind that there might be option you can turn on or off depending on your need but this is just what worked for me. Storage > Storage Options - Removal Media Boot = Enable - Legacy Diskette Write = Enable - SATA Emulation = RAID+AHCI Security > System Security - Data Execution Prevention = Enable - Virtualization (VTx) = Disable - Virtualization (VT-d2) = Disable - AES Instruction = Enable Security > Device Security (Everything to “Device Available” except these) - Serial port = Hidden - Internal USB = Hidden - SAS Controller = Hidden - Legacy Diskette = Hidden - Embedded Security = Hidden Power > OS Power Management - Runtime Power Man = Enable - MWAIT-Aware OS = Enable - Idle Power savings = Extended - ACPI S3 Hard Disk = Disable - ACPI S3 PS2 Mouse = Enable - USB Wake = Disable - Unique Sleep State = Disable Power > Hardware Power Management - SATA Power Manage = Enable - Intel Turbo Boost = Enable - Enhanced Intel Turbo Boost = Enable - EUP Compliance = Enable Advanced > Processor - Hyper-Threading = Enable - Active Cores = All Cores - Limited CPUID = Disable Advanced > Chipset/Memory - PCI SERR# Generation = Disable - PCI VGA Palette Snooping = Disable - Enhanced Memory Performance = Enable Advanced > Device Options - Num Lock = Off - S5 Wake on LAN = Enable - Multi-Processor = Enable - Internal Speaker = Disable - Monitor Tracking = Disable - NIC PXE = Disable - SATA RAID Option ROM = Enable Step tree – Create the USB Download the Mac OS Sierra installer app from the Appstore on a working computer running Mac Run Disk Utility and format the USB key as Mac OS Extended (Journaled) with GUID Partition Map. I just named the USB Key Untitled as standard Then open terminal and run this command to create the USB key sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app Please note that this part of the command “/Volumes/Untitled” is the path to the USB key and if you have named it anything else than “Untitled” you will have to edit it with the name of your USB key. Once the command is done you have to install Clover which can be downloaded here Run the clover pkg and remember to “Change Install Location” to your usb. Then choose costumize and choose the following: - Bootloader - Install boot0af in MBR - CloverEFI - CloverEFI 64-bits SATA Once Clover is installed you will need to add the following Kexts (attached below) to the /EFI/CLOVER/kexts/10.12 folder on your USB Key. - AHCIPortInjector_v1.0.0_Micky1979.kext - FakeSMC_v6.16.1372_netkas.kext - IOAHCIBlockStorageInjector_v1.0.0_Micky1979.kext - NullCPUPowerManagement_v1.0.0d2_tgwbd.kext Step four – Boot to Installation Insert the USB key and start the computer. At the HP screen choose F9 to choose boot option. Then select USB drive When you are at the CLOVER screen you can choose options and in the boot arguments you should write use the –v bootflag to be able to see what is going on in case there is any errors. In my case I am using a ATI 5870 GPU and I don’t need to do anything as the ATI 5xxx series is supported but Mac OS X by default. If you have an Nvidia card you need to add the nv_disable=1 boot argument to avoid a black screen. Now run the installer as you would with any Mac and at the install screen you shall rund Disk Utility and format the drive you want to use as we did previously with the USB key. Mac OS Extended (Journaled) with GUID Partition Map. The installer will reboot the computer and when It starts again you need to hit F9 again select the USB key but this time at the Clover screen You need to choose your newly created Hard drive. The Installer will continue after this and boot one last time before booting in to the new system. Please note that you need to boot from the USB and choose the hard drive each time at the Clover screen. Step five – Make the OS bootable Once you are running your new OS you will need to install clover to that drive like we did previously on the USB key. Run the clover pkg and remember to “Change Install Location” to your hard drive. Then choose costumize and choose the following: - Bootloader - Install boot0af in MBR - CloverEFI - CloverEFI 64-bits SATA Once Clover is installed you will need to add these following Kexts found here to the /EFI/CLOVER/kexts/10.12 folder on you’re the OS X hard drive. If you have an Nvidia GPU you will need to install the web driver which is found here And use the nvda_drv=1 boot flag at the clover screen. You will need to add this to the config.plist ether manually or with clover configurator to avoid typing it in all the time. Enjoy your new powerful hackintosh. HP Z800 kexts Sierra.zip