Question Pc Crashes after running for a while

stephyb

Honorable
Feb 18, 2019
19
1
10,515
Recently my pc started to crash/freeze after running for a while, doesn't matter if I play games or browsing the web, I can even just be on discord and it will crash.
what happens is it only gives me a blank screen in either green, white or grey and with the sound still coming through for about 5 sec then it starts to either stop or start to glitch.
there are no error codes and I must reset it by pressing the reset switch.

Now is my question can it be the power supply or any of the other components that may be failing, one thing I must say is I didn't plug my computer out during load shedding ( I'm from Southern Africa) and left it on, so it took a beating from the last year or so.

I hope to hear from anyone who has an idea of what it could be. Thanks in advance