Hackintosh Noob here, running into trouble

[GeneralSherman]

I successfully created a USB boot drive with mavericks, but when I boot up and select my USB drive from the unibeast menu, I get a white screen with Apple logo for about ten seconds, and then it turns black. I am on a Lenovo y580 and I set graphics to UMA in bios (it has a 660m and integrated). What am I doing wrong? Thanks!

 

[akimb0]

I guess you will need some boot flags.

Could you please provide some hardware specs like MoBo, CPU etc.

 

[GeneralSherman]

I got it working, I misunderstood where bootflags went. Ended up using PCIRootUID=1 and it worked. Thanks!