ga z97x gaming 5 USB drive not boot!

[vadim_unique]

Hi everyone! I'm new in Hackintosh and have some problem with MB. I create Yosemite USB flash with unibeast. But in my motherboard uefi USB drive don't visible as Bootable. Only my hard drives and uefi USB. I load optimal default, set ahci mode and memory profile1. How I can change boot drive priority to hack USB? Please help noob)

Hardware:

GA z97x gaming 5
Core i5 4670K
intel HD4600
8gb ram 1866Mhz
1Tb WD hard drive and 500Gb WD drive

 

[crushers82]

Press F12. If you have a UEFI boot stick click on e.g. UEFI Kingstone. You create Legacy USB click e.g. Kingstone. Next post a pic.Which boot loader you use?