Custom Resolution Utility (CRU)

[ikonomov]

(09-21-2024 03:06 PM)ToastyX Wrote:  What about refresh rates other than 144 Hz? Try 140 Hz to verify if it's allowing EDID overrides. If that works, try between 144-160 Hz.

140 Hz worked. The testing revealed the following frequencies at 3840x2160 that I was able to create and then have them available in NVCP:

in NVCP
CVT-RB: up to 99 Hz

in CRU
CVT-RBv2: up to 148 Hz
Exact: up to 149 Hz
Exact reduced: up to 155 Hz

The limiting factor for resolutions created in CRU seems to be a pixel clock of up to around 1350 MHz (155 Hz Exact reduced uses 1348.50 MHz). NVCP allows me to set the color depth to 10 bit at 155 Hz, so it seems perhaps some sort of conservative calculation is taking place that allows only resolutions that are able to output 10 bit color.

Do you know what could be the effects of using such low timings as Exact reduced?