GL502VM

I just recently got the ASUS Strix ROG GL502VM with the 1060 and I'm trying to configure 1920x1080 @ 120hz on my monitor through an HDMI cable. I've tried to find as much information about it as I can, and from what I can tell the HDMI 2.0 and 1.4a/b are compatible with 120hz but for whatever...