Limited to 144hz on my 240hz AOC Agon 251fz

[vestrong]

Hi there. Yesterday I brought home the 240hz monitor from AOC - the Agon 251fz. For me, the overall experience with this monitor is great, except for one little detail.. I'm stuck at 144hz. I'm using the DisplayPort 1.2 cable that came with the monitor, and I can't go above 144hz. I'm out of ideas.. I'm writing this in the hope, that one of you clever minds on here, might know something about this issue. I'm speculating that my GTX might be outdated - I hope not.

NVIDIA Control panel: https://gyazo.com/b20dee040221bf53f1726a40ceacf139

Windows 10 monitor properties: https://gyazo.com/3f9e7649f4b6693f093ed1f211e22e2c

My pc:

ASUS ROG Strix z270f
Intel i7-7700k
Corsair H100i
MSI GeForce GTX 770 Gaming 2GB PhysX Twin Frozr IV
Samsung EVO 850 250gb
Corsair Vengeance LED 3200mhz ddr4 cl16

 

[mbilal2]

You might have to go into the monitor control panel and enable OC mode. Also what cable have you connected the monitor with?

 

[Barty1884]

The fact it's detected as a "Generic PnP display" is likely the cause. The GTX770 should be able to accomplish it via DP1.2, so I doubt that's the issue.
Try reinstalling your nVidia drivers.
Once the display is detected accurately (and is detected as supporting 240Hz), it should be an option for you to select in both Windows and nVidia control panel.

 

[vestrong]

The fact it's detected as a "Generic PnP display" is likely the cause. The GTX770 should be able to accomplish it via DP1.2, so I doubt that's the issue.
Try reinstalling your nVidia drivers.
Once the display is detected accurately (and is detected as supporting 240Hz), it should be an option for you to select in both Windows and nVidia control panel.

I fixed the issue of my pc recognizing the monitor as a generic PnP display, though without any effect what so ever. This is what it looks like now, trying to achieve 240hz:

https://gyazo.com/239fcf0c5ee6f1e029a02917b7c3e71e

 

[vestrong]

You might have to go into the monitor control panel and enable OC mode. Also what cable have you connected the monitor with?

I'm using a DisplayPort 1.2 cable. I tried navigating through the monitor settings but i can't find anything like "enable OC mode"

 

[turbopixel]

I have an AOC Agon monitor too, but its the 144/165Hz model. To find the OC mode, you open the monitor menu, go down to bottom option (its called Extra on mine), then the second entry is overclocking. Maybe you have the same menu structure and this helps you finding it. After setting the Hz you want, you must use the function to accept and restart this in same menu point where you set it, otherwise it reverts back.

But this is for overclocking from 250Hz to 251Hz. Not sure if this helps you, because you stuck on 144Hz. Is it possible that you got wrong monitor?