New 144hz monitor blacks out under load

[Snoopy 1,480 / 15,610]

So yeah. I recently brought a monitor which turned up yesterday. I went for @Darkling's suggestion and brought Element Gaming 27" QHD 144hz 1ms Gaming Monitor. The monitor runs perfectly fine when I use a HDMI / DVI cable at 60 Hz but as soon as I start using a display port and jump it back up to 144 Hz every so often, under load like when I'm playing games, my monitor blacks out for anywhere between 1 and 5 seconds. 

 

- I've already tested it at 60hz and 144hz and 144hz is the issue

           - Tested with HDMI + DVI @ 60 Hz and it's fine

           - Tested with another computer with the above and it's fine 

- I've swapped out my power supply to a decent 550w (From 500w) as I was meaning to do that anyway

- I've changed some display settings as something suggested online

           - https://gyazo.com/de03fcbc54fcd3abb2116bcd088ee097

           - Changed "scaling mode" from Aspect Ratio to Full Screen

           - Changed "perform scaling on"from Monitor to GPU

 

Any suggestions on how to fix this? 

 

Any help is much appreciated. 

Thanks

 

Edited November 29, 2018 by Snoopy

[Leks 2,304 / 26,632]

I used to have these issues because I used Display Port, it's been a long time since I fixed it, I cannot remember what I did but I will get back to you once I find out.
 

[TheJitFace 699 / 18,162]

Try making a custom setting in the nvidia control panel: https://rog.asus.com/forum/showthread.php?47143-Increase-your-screen-refresh-rate-(Hz)-with-these-7-steps

[Joshy 4,364 / 44,945]

Have you tried a different dp cable?

[Snoopy 1,480 / 15,610]

On 11/30/2018 at 5:58 PM, Joshy said:

Have you tried a different dp cable?

 

That fixed it. Must have been a faulty cable or something then. Thanks