Anyone know how to fix this? This is so frustrating! I tried everything special launch options in steam, restarting PC, changing CS:GO config, messing with nVidia settings. So after overclocking the monitor, I went the nVidia control panel, deleted my custom 1440 resolution, and made a new 1440x1080 resolution at 75hz, but when I launched CS:GO the custom resolution was not available like it used to be. I know this is a longshot, but has anyone here run into an issue like this? To initially get the custom resolution in CS:GO, I had to go to nVidia control panel and create a 'Custom Resolution' 1440x1080 4:3 which is what I want. Problem is, I no longer have my custom resolution in CS:GO. I brought it down slowly until I stopped getting the error which was 75hz. I tried 80hz, but I got that same error message as you. I used EVGA's Precision X Pixel Clocking feature.

I have a Samsung S27C750P and it's stock at 60hz, and I'm trying to get the refresh rate as high as I can (while keeping it safe) as I play CS:GO competitively.

What is evga precision x pixel clock