Hello! Yesterday i successfully instaled hackintosh yosemite from USB to hard disk. Now i have this problem when i m trying to star the OS from the hard disk i enter boot npci=0x2000 everything seems fine, this hackintosh logo appears and loading beggins, when loadinh bar reach something like 50% my screen turns off an i have to restart my pc. My pc specs: CPU: amd fx 6300 MB : Msi 970 Gaming GPU : Radeon sapphire r9 290x RAM : 12gb Please Help! Thanks!