Firstly, this is not a guide, although it probably contains enough information to get your X299 hackintosh working if you already have a working hack. I'm not some flash software guy so you won't get good answers if you ask something technical. edit: When I get a new computer I've always just made a new EFI / config.plist on the old one, installed or CCC the OS x to a new drive on that old computer and then tried it out on the new one. Since I never actually did a clean install off USB or anything, maybe another (or other) user/s can add to this and turn it into a full guide... This was the easiest Hackintosh I have ever made! As background, my last hack was an X99 i7-5960x, with an R9 Nano and helper card. First hack was an X58 with xeon 6 core cpu X299 HackinCAD specs: Gigabyte X299 Aorus Gaming 9 i9-7900x Radeon Vega Frontier Edition Samsung NVME 960 evo (1tb) and backup Samsung 850 evo (1tb) SSD 32Gb 4x8gb Gskill DDR4 RGB (colourful!) EKWB 420 + 360 rad for cooling (which is really necessary for this CPU) Method: On my X99 hack I copied the whole EFI onto the most current Clover bootloader EFI. I pretty well stripped out the kexts and patches from that EFI and made a new and vanilla High Sierra install using the core pkg method. Things to watch - Something on my previous HS install was borking it, possibly some modified kexts in S/L/E to do with my Nano, hence the new install. I used migration assistant after that to get my stuff back. HWSensors in the plugins folder in FakeSMC was causing kp, had to remove. edit: I removed all of the kext and kernel patches and now I have speedstep yay! edit: I also have all the USBs but no onboard sound - I use a USB DAC anyway so I don't need this. edit: Note - updated screenshots and attached my clover (10 Aug) The vega worked oob. I have nothing flagged or ticked. Boot screen is good, clover menu good. No boot to black or helper or igpu. BUT! It's less than half as fast in Cinebench as my old Nano. I'm hoping it'll get better as the drivers mature. My only boot flags are -V and npci=0x2000. This is how to do it (in pictures): Note : I've since changed back to Mac Pro 6,1 with no issues.