So, i have recently opened a thread here asking for help in solving a problem i am having on my computer.
So, about a week ago, i woke up, booted up my PC and started playing some games and browsing the web, when suddenly, out of nowhere, everything closed and windows gave me the "Shutting Down" screen before turning off my PC. I though "That's weird" but thought it was just some bizarre anomaly...
pchelpforum.net
Unfortunately i caught COVID-19 and had to be hospitalized for a week, and thus could not reply to that thread, and it was closed. But now i am back home and i am still trying to troubleshoot that problem, so i once again ask for your help.
Summary: Recently my computer started shutting down by itself, it happens at random, sometimes while playing games, sometimes while browsing the internet, sometimes while doing nothing at all. It can take 2 minutes, or a full day, with no pattern at all, i can not force it to happen. After it happens, my computer just won't turn on afterwards, it will try, the fans start spinning, but it turns off again, and keeps turning on and off until i remove it from outlet, sometimes it will not do this, and instead simply won't turn on, when it happens i have to leave it for a few hours and try again.
Since the problem first started and i made the previous thread i have:
Reinstalled Windows, along with all of the Drivers available for my components, this did not solve the problem, as it happens even with a fresh windows installation and nothing running at all. So i ruled out Windows and Driver problems.
Tested my computer with another Graphics Card that is working okay on it's computer, and the problem persisted, so i ruled out the GPU.
Checked the temperatures, and everything is as it should be, even when gaming. So i ruled out temperature problems.
Now here is where it gets confusing:
Around the same time i also started getting some BSODs (screenshot attached), and started to investigate those, believing my RAM was causing them, so i ran MEMTEST86 and i got a CPU error (screenshot attached).
It was at around this time where i got sick and had to abandon the search, but now i came back and ran some other tests to see if RAM or CPU was at fault.
Windows Memory Diagnostic detected no errors (screenshot attached).
Prime 95's Blend test was giving me "Prime 95 ERROR: rounding was 0.5 less than 0.4 and hardware failure detected" after running for a few seconds, it happened multiple times yesterday, but i forgot to screenshot this, today, i could not replicate this result, the test ran fine.
IntelBurnTest was also giving me a critical failure, said my system was unstable, but this result was also different today as the test ran completely fine, with no errors (screenshot attached). Keep in mind i did not change anything, not in the BIOS, not in the system, not Hardware, so i cannot explain this change.
I suspect the CPU error in MEMTEST86 should be gone as well, but i haven't had the time to test this yet.
This leaves me with two possible culprits, the PSU and the MOBO, but i have no idea how to test these two.
I tried with the PSU, at first, i would get it to turn on by removing a few components such as the HDDs, which made me think it was not handling everything in the system, but then this would not be enough, and eventually the problem would happen even with only the MOBO, CPU and RAM connected to it, with the GPU and SSD and HDDs all removed. And sometimes, it would not happen at all, with everything connected to it. This randomness makes everything so much harder. Can the PSU be at fault? Or maybe it is the MOBO? How can i test this?
Thanks in advance.