I built my PC just about a month ago with the help of my partner, and I've been dealing with random shutdowns when using it, whether I'm browsing the web or gaming. There's no blue screen of death; it just powers off and reboots. I've checked the temperatures, which seem fine, ranging from 45 C to a maximum of 70 C. After crashing during a Fortnite session, I decided to run Windows memtest, which indicated that there were hardware errors. Now, when I try to log into Windows, it crashes almost immediately, even without any input, and reboots again without showing a BSOD. I was able to access the BIOS and saw that it seemed to be set to defaults, with no overclocking. This morning, everything appeared to be working fine, but now I can't even get past the login screen. I considered checking the RAM to see if that was the culprit, but I had a bit of trouble reseating the sticks and decided to wait for my partner to help. I'm looking for advice on potential compatibility issues or steps I can take to troubleshoot this further.
4 Answers
Another tip would be to disable Memory Context Restore in BIOS, and then perform a cold boot (full shutdown). When I had a similar situation, this sequence helped me stabilize things. Good luck!
Since your memtest showed errors, it's quite likely that the RAM may be at fault. I’d suggest getting an RMA for it if you haven't already—defective memory can definitely cause these kinds of crashes.
Also, if you manage to get into Safe Mode, check for crash dump files in C:WindowsMinidump. These dumps can help in analyzing what went wrong. Use something like Catbox or Mediafire to upload them for others to take a look.
First thing I'd recommend is to reset your BIOS settings to default. Sometimes, that can fix the issues you're experiencing. After that, try different RAM configurations—maybe see how it runs with lower speeds if you can. If you continue to have problems, consider getting the RAM checked or even RMA it. There have been reports of issues with ASRock motherboards damaging Ryzen 9000 chips, so hopefully, that's not the case here.

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