z87 d3hp

Hello, i'm trying to install Yosemite on my computer and I can't get to the install screen, I'm using UniBeast. Using flags "-v" and "-x", i got "Unknown CPU model 0x3c" System specs: - Gigabyte Z87-D3HP - i7-4770k - Asus GTX 750TI 2GB I'm using a DVI cable and I can't move forward can...