Question Pc shuts off and reboots at random times

[SilObdam]

Hey guys, I have a gaming pc that has never worked properly. i have it for 4 years now and the last year problems got a bit worse with it nog giving flickering lines in my screen and then rebooting. my pc sometimes disables my graphics card and i have to manualy turn it on in device manager. i tried everything but cant get it to work. ik facory reset my pc multiple times, i uninstalled my graphics drivers multiple times but it still shuts off at random times and dont know what to do from here. ik hope you guys can help me.

Specs:
Processor: AMD Ryzen 5 3600 6-Core Processor
Video Card: Gigabyte Radeon RX 5700 XT GAMING OC 8G
motherbord: Asus RoG STRIX B450-F GAMING
Powersuply: Seasonic S12III-650 80 PLUS Bronze
Ram: Corsair 16 GB DDR4-3600 Kit
Storage: Seag 2TB ST2000DM008 7200 SA3 / Crucial BX500, 240 GB SSD

Video of pc Shutting down:
https://photos.app.goo.gl/KmdaS3Y7Rz7bBwYz8

 

[Ralston18]

Look in Reliability History/Monitor and Event Viewer for any error codes, warnings, or informational events being captured just before or at the times of the described shutdowns and other problems.

Reliability History is very end user friendly and the timeline formation can reveal patterns.

Event Viewer requires more time and effort to navigate and understand - however; it can likewise be very helpful.

FYI:

How To - How to use Windows 10 Event Viewer | Tom's Hardware Forum (tomshardware.com)

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Just as a quick assessment the PSU is a likely suspect. Four years old - original to build? History of heavy gaming or video editing use?

 

[SilObdam]

How can i make sure its my powersuply before i buy a new one and the problem still occurs?

 

[XxDarkMario20xX]

How can i make sure its my powersuply before i buy a new one and the problem still occurs?

Could be many things but I would take a look at GPU with the flicking screen issues. Have you got a friend or family that could test your parts out or you can take it to repair shop!

With Seasonic S12III-650 80 PLUS Bronze its a 5 year warranty so would be best to start looking for a new PSU unit before it runs out because PSU do not stay at that power all the time and can degrade!

From Google copied your words flickering lines in my screen and then rebooting.


Possible causes:

• Outdated graphics drivers:
  The most common cause of flickering lines is outdated or corrupted graphics drivers.
  
  
• Overheating:
  If your graphics card is overheating, it can cause visual glitches like flickering lines.
  
  
• Loose connections:
  Check if the graphics card is properly seated in its slot and that all cables are securely connected.
  
  
• Damaged hardware:
  A failing graphics card or a damaged display cable could also be causing the issue.
  
  
• Power supply issues:
  In some cases, an insufficient power supply unit (PSU) can cause instability, leading to flickering lines.

 

[RTX 2080]

I also say that the power supply is the most likely culprit