Hi
I am trying to install macOS High Sierra on my Dell OptiPlex 780 core 2 quad Q9550. first i tried using OpenCore in did not work now i am trying with clover, Burt the image High_Sierra.raw (download from this site) using rufus as MBR partition as dell 780 does not support UEFI and copied the clover EFI folder into the USB Efi partion but still the PC does not boot from USB. kindly help if I am missing any thing