@beltzak & @dolgarrenan thanks for your help, but nothing worked, I tried everything, only the OC bootloader, in USB, SSD, NVME, tried OC 0.5.6, 0.5.8, 0.5.9 and the unreleased 0.6.0. I did not try Clover :( but anyway the main Issue is in the BIOS, even without any disk or usb drive, just the...