Have no clue to that one more than that i once owned two G752:s.One VS and one VT.Powerful laptops who sometimes suffered of quality problems.Nice computers and the only problem i had with them is that they didnt have a direct hdmi to the graphic card who made it hard for me to get the VR system to work properly and my home countries Asus support didnt have a clue on what to do.Things who make you sad on these otherwise great and in the same time rather expensive hardware.