I recently bought a prebuilt PC, and it's been having random restarts since day two. Here are my specs: R5 5600X, MSI RTX 5060, 32GB of Corsair Vengeance LPX RAM (I added another 16GB stick after bringing it home), an ASUS PRIME B550M-K MATX motherboard, and a couple of SSDs (256GB NVME, plus a new 512GB NVME and a 1TB SATA from my old laptop). The restarts often happen when I'm downloading games, with no BSOD showing up—just a black screen followed by a reboot. The temperatures stay around 40-50°C, and I've already reseated the GPU and RAM. I initially disabled DOCP, but I've enabled it now since the new RAM was running at a low speed. Sometimes it runs fine for hours, but then it just reboots. Has anyone experienced this or knows what could be wrong?
5 Answers
Is your PC sharing a powerboard with other devices? I had an issue like that where my PC wouldn't restart under load because the powerboard couldn't provide enough juice. Try plugging it into a socket by itself and see if that helps.
First things first, try resetting your PC to its default configuration by removing the new parts you added. If it runs without crashing after that, the issue might be with the newer components. If it's still crashing, it could be a deeper issue with the PC itself, and you might want to contact the seller for a replacement.
I installed games on those other SSDs—can I just unplug them without uninstalling everything?
Make sure you're running the latest BIOS version! Also, check your power supply; does it have enough wattage for everything? If you're still having issues, try downclocking your CPU by 200-300 MHz through Ryzen Master and see if stability improves. I've had memory issues with AMD builds at stock speeds before.
I have a 700W PSU, so I should be good. I'll try the downclocking and update the BIOS.
Check the Windows Event Viewer for any errors—it might show kernel errors that cause restarts, especially under heavy loads. I suspect it might be a PSU issue if that's the case. You could consider replacing the power supply to rule it out.
When I dealt with something similar, I eventually had to remove and reinsert the battery on the motherboard to reset the BIOS. It was a bit of a hassle, but it worked for me. Worth a try if you're comfortable doing it!
The round battery, right? Sounds like a plan!

I thought it was plugged directly into the wall. I moved it to a different socket and it worked fine overnight, but then the reboots started again.