cru downsampling 2560 x 1440 help needed

[bpelsom1990]

i got a msi ge62vr 7rf laptop with a 1080res screen im trying to get 2560 x 1440 down sampling
i tryed all types of numbers keeping the mhz pixel count below 165 i keep geting a black screen iv only been able to from 60hz to 63 hz working im abit confused.is it possible i can get 2560 x 1440 working thanks

 

[bpelsom1990]

i got a driver that alows me to overclock the screen by the way

 

[audie-tron25]

I'm surprised you can downsample with CRU, generally it won't allow you to use higher resolutions than what the monitor can support (will give you "Out of Range" errors). Why not just use the SuperSampling options in the Nvidia settings?