I'm having constant crashes and I was wondering what causes them.

[ItZChrisGr]

I'm having constant crashes and I was wondering what causes them.
Since don't know what information I should provide, I will just describe the crashes for the time being. So, no matter what game I play (apart from League of Legends) the game crashes and glitchy pixels show up everywhere. Sometimes after a crash my PC completely freezes and i have to force shutdown or else it will stay like that forever, some other times only the game crashes only and everything else is fine.

SPECS:
motherboard msi h110m pro-vh 1151/h110/
hdd toshiba 1TB 3.5"
vga msi geforce gtx 1050 ti 4gb oc
psu turbo-x value series 550 W
cpu intel core i5 7400 1151/3.00 ghz/
ram desktop teamgroup 8GB 2400mhz DDR4

People have told me that i should change the PSU, and i'm planning on doing that. But before actually doing that, I would like to make sure it's not the GPU's fault before doing that.

 

[feelinfroggy777]

Are you overclocking the GPU? If so it could be an unstable OC.

What are your CPU and GPU temps under load?

 

[ItZChrisGr]

Are you overclocking the GPU? If so it could be an unstable OC.

What are your CPU and GPU temps under load?

I have overclocked in the past, but when the problem started occurring I reverted it to the stock clocks.
Temps should be about 55-65c with the fan speed being 100%

 

[feelinfroggy777]

Do a clean uninstall of the drivers in Safe Mode. Use this DDU tool and then download the most recent drivers from Nvidia.

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

 

[ItZChrisGr]

Do a clean uninstall of the drivers in Safe Mode. Use this DDU tool and then download the most recent drivers from Nvidia.

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

Done, still no result. I wasn't expecting anything out of it because i have reinstalled windows several times since the problem started occurring.
I'm pretty sure it isn't a software problem.

Is there a chance that I need to replace the thermal compound of my gpu or something similar?
And also I've run stress tests on both my RAM and my CPU. I have updated all my motherboard drivers. At this point i'm trying to figure out what needs fixing or replacing.

 

[reedo_43]

https://www.youtube.com/watch?v=SNQWiTt3khk

Sorry, had to do it!

 

[ItZChrisGr]

https://www.youtube.com/watch?v=SNQWiTt3khk

Sorry, had to do it!

Accidentally downvoted instead of upvoting. But yeah, psu is going to the garbage soon.

 

[ItZChrisGr]

So, i just ran the unigine heaven benchmark at the extreme preset and got a 35~ fps average. Pretty sure the results are normal but the glitched pixels or whatever started appearing again but this time i had afterburner on my second monitor and captured my card's temp, clocks etc.
When the glitched pixels started appearing my card was running at 3504mhz memory clock, 1657 gpu clock, 981 mV Voltage, and was at 62c temps.
Posted it in case it helps with figuring out the problem. Thanks for the answers so far!

Forgot to add, the card was exceeding the stock clocks somehow and that the benchmark didn't crash like games do even though the weird pixels appeared again.