Asus ROG Swift PG278Q refresh rate settings question

bumblebee953

Distinguished
Aug 15, 2011
132
2
18,585
Hey guys I just got this monitor and was wondering if someone that has this monitor know why is it that in my Nvidia Control Panel under Change Resolution I am only able to pick from 24, 60, and 85 Hz refresh rates? I thought this display allows up to 144?
Is it because I have a non-G-sync gpu? I have a 580 and still waiting on a 980Ti (backorder).
The refresh rate toggle button on the monitor also only gets 60Hz (doesn't switch to the 25 or 85 Hz settings).

Any help greatly appreciated!