Question LG 25UM58-P at 75HZ,possible?

[frozensun]

I googled and found out if it's not a lie that some guys overclocked this monitor to work at 75Hz,and on manual it says it works on 75Hz but under Windows 10 I see only 60Hz.
I have an AMD card.
Is this a trick or true,and how do I enable it to work at 75 Hz?

 

[rgd1101]

does windows 10 id the monitor correctly?

 

[frozensun]

yes,installed drivers too.Can it work on 75Hz,like the specs say.
Maybe I need nVidia card.

 

[rgd1101]

is not g-sync. try using custom resolution

 

[frozensun]

I got this monitor few months back,and I just noticed it's 75Hz under specs.
But it works on 60 Hz with my AMD graphics card.
What is wrong?
How do I enable 75 Hz refresh rate?
I googled and figured out a lot of people complaining about this and some even manage to overclock it to 75 Hz.
But why to overclock if it's 75Hz.

 

[frozensun]

is not g-sync. try using custom resolution

How do I do that?

 

[rgd1101]

what connection(video port) are you using?

 

[frozensun]

HDMI 2.0 but maybe the card supports only HDMI 1.4 I think.