Question New monitor causing lag and PC crashes

[XpertMenace]

Hi,
I bought this monitor just a few days ago.
https://www.overclockers.co.uk/asus...-oled-240hz-0.03ms-monitor-mon-asu-03117.html

When it works its great and it looks amazing.
However, ever since I got it I've been having awful stutters when alt tabbing out of either a game, a Youtube video or anything fullscreen really. The stutters also occur when I get any kind of pop up or steam notification, or If I turn the volume wheel on my headset to adjust it or anything outside of the maximised window.
Task manager doesn't show any spikes and everything seems completely normal when it happens.
The lag normally lasts around 2-10 seconds and if I tab out, it sometimes just completely crashes my PC. Both of my monitors just turn black and the pc turns off, no blue screen, no audio issues, no nothing just my pc turning off as if the power went off.
Apart from this the PC runs completely fine, without any issues whatsoever
I am using FreeSync but the issue occurs with or without it turned on, I've tried turning hardware acceleration off too and it didn't help.
Is there any reason this is happening or any easy fix I can do? It only started occurring after I had bought the new monitor and on my previous displays nothing like this occurred.

Here are my specs:
https://uk.pcpartpicker.com/list/jX6RzP

 

[Lutfij]

Welcome to the forums, newcomer!

How old is the PSU in your build and what did it power throughout it's tenure? What BIOS version are you on for your motherboard?

Try and use DDU to remove all GPU drivers(intel, Nvidia and AMD) in Safe Mode, then manually install the latest GPU driver sourced from AMD's support site in an elevated command, i.e, Right click installer>Run as Administrator.

 

[XpertMenace]

Welcome to the forums, newcomer!

How old is the PSU in your build and what did it power throughout it's tenure? What BIOS version are you on for your motherboard?

Try and use DDU to remove all GPU drivers(intel, Nvidia and AMD) in Safe Mode, then manually install the latest GPU driver sourced from AMD's support site in an elevated command, i.e, Right click installer>Run as Administrator.

Hi, I've recently switched from NVIDIA to AMD and during the process I've gotten a new PSU, the one linked in the PCpartpicker list, as such it's only about a few weeks old.
I have already ran DDU to remove any old drivers as I suspected that might be a problem and it hasn't fixed anything.