Windows 10: PC keeps crashing and rebooting at random times for no reason

Okay so since yesterday I've been dealing with an issue where my PC will literally be doing ANYTHING. Idling or loading a game. And suddenly, everything stops working and then boom it reboots. Never done this before and the only recent thing I've installed was Ubisoft Connect aka Uplay and or tried to install the Ghost Recon: Frontline technical demo.

:)

 

Random crashes/reboots - PSU failling?

I'm concluding that's not a software issue but a hardware one, most likely being the PSU the culprit.

• Power supply in my area has always been very inconsistent in summer time, even experiencing several low voltage situations system wide, with surges making my PC to reboot automatically. Despite PSU's got it's own protection methods, exposing it to several days -and years overall- of unstable electric flow could've inflicted some damage on it. PSU is not near top of the line and it has 8 years of continuous usage (Sentey BRP700).

• I did have random, sporadic reboots over time on my system for a while, even while doing basic tasks (watching a YT video). None prove to be catastrophic until the other day.

• Since the "mayor crash" I experienced the other day while playing a game, that rendered my system unable to install AMD Drivers even on a fresh new copy of a clean Windows 10 , I did experience several random reboots using Microsoft Basic Display Adapter performing basic tasks;
  • At the time of the "mayor crash" I had latest AMD drivers installed and they were working just fine and no mayor Windows 10 updates were installed that day.

• Removing video card (AMD R7 265) and replacing it a Geforce GTS 540 for testing purposes also triggered random crashes and system's lock up (different behavior, but same result nonetheless = system crash). Even while using the Geforce the computer suffered TWO system crashes just by clicking on the "refresh" button on TechPowerUp GPU-Z app. Yet, the third, fourth, ... times I clicked refresh, system did not reboot.
  • Attachment 273658

• Weirdly enough FurMark stress on my CPU and the testing video card -Geforce GTS 540 with Nvidia drivers installed- didn't make my system crash. Yet, opening Chrome afterwards triggered a crash.

I can't identify a system crash pattern.
The only pattern is that when I try to install AMD drives for my R7 265 the system does crash. The rest of the reboots are random and not logical based on the system stress at the moment.

Despite inspecting the PSU -and computer in general- for failed capacitors, I really lack the know-how to effectively detect a bad one unless it's very obviously damaged.

Bottom line: I'm purchasing a new PC overall -time to upgrade anyways- and I expect this to solve my issue once and for all.

I really appreciate time invested in trying to help me, guys!

 

Random Reboots

I've had, as the title suggests, random reboots for the length of the time since I've built my computer (2 years roughly) and they're completely inexplicable.

It happens under no load, high load, watching movies, listening to music, playing games, browsing the web, sitting by itself in the room when the my sleeping monitor is even saying WTF?!

There aren't any Events to view other than the usual 0xC*D event when the service just shrugs at me.

Any thoughts or suggestions? Maybe someone has had the same problem before and it was just a loose molex connection? I'm baffled.

 

WHEA_UNCORRECTABLE_ERROR - Random reboots and 0x124 error

Thanks, axe0

How do I explain what steps I took... I ran dm_log_collector.exe but not sure how results were actually acquired/interpreted.

I need to be able to explain steps I took and steps taken to reproduce.

Attachment 162250

thanks, in advance!