This started happening a couple of weeks back. The issue is intermittent. Whenever I'm playing a game, the PC automatically restarts. Sometimes it happens within 5-10 minutes. Sometimes I can play for hours without any problem.

I've already ran memtest and prime95 and didn't face any problems with either RAM or CPU.

I've mostly faced this problem while playing Sniper Elite 4, but on couple of occasions it happened while playing Destropolis - a rather lightweight twin stick shooter.

Earlier this month I was playing Spider-Man without any problems.

Now I'm wondering if the GPU is going bad or if the PSU is going bad and is not able to provide enough power.

Is there any way to conclusively understand which component is malfunctioning before I can start the RMA process?

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[–] Lakuz@sopuli.xyz 1 points 1 year ago

Could also be the motherboard or a loose cable/connection. Have you monitored system temperatures while playing?

Anecdotal, but I've had three occasions where such an issue was caused simply by a faulty SATA cable that intermittently disconnected the OS drive at seemingly random intervals depending on environmental factors. One of the easiest things to test and saves a lot of time troubleshooting if it happens to be the issue.