Title explains most of it, and trying to search that on Google is tough, as you get tons of common issues lol. But yeah, I have one PG27UQ that works just fine, I'm able to set it in the nvidia control panel to 144hz (after setting the monitor setting to overclock to it.) The other monitor is recognized just the same as a 144hz capable screen, but if I select anything above 60hz, the display just displays black (not no signal, the backlight is on, but it's just no image.) I've tried multiple displayport cables and multiple ports on the GPU. With both monitors plugged in or just individual monitors, this same monitor has this problem regardless. Any help?