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I'm sending my opencore files with tools (propertree, GenSMBIOS). I'm using dw1820a, i removed pci section in config.plist file, but kexts still in efi. I changed smbios info, if you want, you can change again. This is my latest working opencore efi sample. I followed this guide for opencore post-install settings. That you must not forget, if you changed anything in opencore folder via propertree, for instance add/remove SSDT or kext, use "cmd + control + r" keys. This key combinations are arrange the config.plist file easily. And then cmd + s for save. After change efi, if your device not boot, clear NVRAM in opencore boot menu. There are many resources on opencore on the internet. Before you edit the efi file in NVME, always do it with a usb stick. Otherwise, the running system may become not boot. If usb efi boots normally, copy usb efi folder to nvme efi. Hope it helps. Optiplex_Opencore_05_10_2020.7z