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Small-Scale Question Sunday for August 27, 2023

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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I'd normally say power supply too, but there's a possibility there's a power-saving setting causing either your psu or mobo to be too slow ramping up supply to sudden demand during games, causing a crash. That would explain why it only happens in games rather than benchmarks. This has been a big problem with the new graphics cards, and I've even had it on my old system.
It's also by far the easiest thing to check, since you just need to google all the different power saving options and disable them.

But imo it's still likely to be your psu, which is good news because they're one of the cheapest and easiest things to buy and replace. And even if it was your mobo, you'd need to buy a new psu for a new rig anyway, so there's no waste in getting one now.

Sorry for the late reply. Ironically couldn't post earlier because I had my PC apart to add some M2 cards and scavenged fans.

No worries, a cursory check doesn't seem to show anything out of the ordinary, but I still suspect it's more likely to be the PSU myself given that the problem was sudden, and I have my power settings to high performance if anything.