Nvidia driver version "347.xx" can't set laptop panel refresh rate to 75 Hz.
LastUpdate : Fri, 11 Mar 2016
Answer
Please use Nvidia Geforce Experience to auto update latest Nvidia driver or directly download the latest version from Nvidia website. After driver update, you can set 75 Hz.
Models
- GT72 2QE Dominator Pro G
- GT72 2QD Dominator G