lenovo y50-70 uhd

Hello, guys, I'm new here I'm sorry if this wrong place I post if someone has the same laptop and the same specs and he was successful got the full VRAM on mac help me or sent to me here file (EFI)

Hello, I'm sorry to write about that because there's already a lot of posts about it, but I have Lenov Y50-70 / i7 4720hq / gtx 960m 4Go / HD 4600 / ssd 512 , with the UHD screen. It's brand new, and i thought i was buying the ful HD screen but they sent me that UHD... I'm an absolute beginner...