Question Display has stopped working ?

[Redcoy]

Hello, I’m not sure what to do by now and desperately need help since I have a deadline for work.

I tried reseating RAM sticks, tried one by one but all the same as well

My PC starts to be laggy and then i force restart it,
It start to be laggy when I left it and then when I came back the screen is off (power saving or something) so i disconnect and reconnect cable and monitor turns on. Now its a bit laggy but the temps and utilization on gpu and cpu are pretty fine not hitting 100%.

Another thing is that this happened when cyberpunk is updating and patching (all steam games are installed on drive D hdd).

after the force restart no more display (no logo but normal beep from case), I tried to shut down and turn on same thing happen. The third time it went had a display but with a “preparing startup repair” (thats the only time it had display).

I tried to boot it up normally(exit and boot to windows 11) since I had a display assuming its back but it doesnt. It seems that I can only have display when its in “preparing startup repair”. So I was thinking it might me messing up with the old and new GPU drivers (i installed a new GPU recently). I tried to format it (i have display the whole time on this).

During windows installation, after setting things up with multiple restarts and then one last restart it freezes (hangs up on Just a moment loading screen). I tried waiting but no progress. I dont have any choice but to force shut down again. And now its back to no display like from the beginning

My specs:
Processor: i5-8400 2.9ghz
Mobo: Gigabyte H310M h2.0
Ram: Hyper fury 32GB 2666
GPU: RTX 4060
Memory: 1. WD SSD 500gb (primary)
2. WD HDD 1Tb
3. Qinix SSD 128gb
PSU: Deepcool 750W gold

I’m pretty sure its more of a hardware issue by now but kinda feeling helpless. Would really appreciate some suggestions and help.

Thank you

 

[Redcoy]

Update: I tried removing drive D and E. Still the same

 

[Redcoy]

Update: I managed to reinstall windows without the GPU, drives D and E. but I noticed something once I am at the windows update sometimes it randomly turns off(it turned off at 99%) and go back to the process again at the setting up yung country region

 

[Redcoy]

Update: windows successfully installed and everthing went smoothly, once I put my GPU back and boot it up everything went so slow, took me 5 mins loading OS, around 20 mins on entering lockscreen and another 10 mins in order taskbar appears on desktop. I havent installed graphics drivers yet

 

[Redcoy]

Update: it seems that my SSD goes 100% active time, im not sure if GPU has to do with it so my suspect is either the SSD or GPU. This also started when I installed the new GPU. First moments of windows reinstallation without gpu was fine it started when I put it in I hope someone can help