Hi Guys,
I have this system that I built 4 months ago, ASRock Z87M Extreme 4, i5 4670K, ASUS R9 270, Coursair 2X4GB.
I wanna to install Mavericks on it, I have followed every single step in the step-by-step guide and tried every single flag I can find but no suck luck, it keep rebooting at at...