Nvidia Custom Resolution. In reality, how dangerous is it? Custom Resolution Utility - CRU allows custom resolutions to be defined for both AMD/ATI and NVIDIA GPUs by creating EDID overrides directly in the registry without dealing with.inf files.
Right-click on your desktop and choose NVIDIA Control Panel. Custom Resolution Utility for Windows by ToastyX, duplicated so the source won't be lost. EDID editor that focuses on custom resolutions.
From PCGamingWiki, the wiki about fixing PC games.
Custom resolutions give you the flexibility to add virtually any screen resolution and refresh rate Go to the NVIDIA Display Properties by right-clicking on the Windows desktop on selecting NVIDIA.
CRU shows you how the monitor defines resolutions and other capabilities and gives you the power to change it. So, once you've downloaded and installed Custom Resolution Utility. EDID editor that focuses on custom resolutions.