I've been having issues with my PC randomly shutting down. I checked the reliability history and it only indicated that Windows wasn't shutting down properly. Recently, I even bought a new SSD and did a clean install, but that didn't solve the problem. Right now, I'm borrowing my friend's RAM to see if that's the issue. If changing the RAM doesn't help, could it be a problem with the power supply, or is there something else I should consider? I also want to mention that I've cleaned and repasted the CPU, and the temperatures are fine, so overheating isn't the culprit.
3 Answers
Was this a prebuilt PC or one you assembled? If it suddenly started shutting down out of the blue, think back to any recent changes you made. Also, keep an eye on whether it shows any kind of crash screen or shuts off without warning. If it's not a RAM issue, it could definitely be a power supply issue since it might not be able to keep up with your components, especially if they’re demanding.
I had a similar problem before—turns out my GPU was sagging a bit, which caused connection issues. But since you're using integrated graphics on a Ryzen 4600G, that might not apply to you. Just keep an eye on all your connections and cables!
It sounds like you’re on the right track with testing the RAM first, since that's often the culprit. Keep an eye on it for a couple of days. If you still get random shutdowns, I’d suggest looking into the power supply next, as it might be failing or not supplying enough power. Just to double-check, make sure your CPU temps are okay as well; it’s good that you repasted it!

I actually did clean and repaste the CPU already. The temps are normal, so I'm sure it's not overheating.