Unanticipated shutdowns continue as we work on identifying the issue
Unanticipated shutdowns continue as we work on identifying the issue
Hello everyone, I’m a member of the Whatthetech community, but I’ve noticed very little activity lately—it feels like the quiet corner. I’m reaching out here hoping some of the experts in this space can help me fix my computer. This machine is brand new, and I assembled it under 2 months ago. I’m experiencing problems with unexpected shutdowns; it drops power and restarts every 2 to 3 days, rarely more than once a month. I’ve tried everything possible to pinpoint the cause.
Initially, I suspected Windows updates might be the issue since I recently installed several security patches for Windows 11. While doing that, the system would boot into BIOS instead of Windows. I had to power off and restart just to get back to Windows after an improper shutdown. I’ve also reinstalled a brand new power supply, suspecting it could be the problem because I made a serious mistake during assembly—placing a modular cable from an EVGA PSU into a Corsair unit accidentally damaged some parts. I replaced the CPU and swapped out two PCI-E USB cards.
I ran a burn-in test using Passmark to stress components like the CPU and graphics card, but everything passed without issues. The only part left uninstalled is the motherboard. To dig deeper, I opened the Event Viewer and looked for errors. I saw a Hyper-V warning about HyperThreading being enabled, which should block mitigations for side-channel attacks. The error appeared just before shutdowns. I disabled Virtualization and Hyper-V in BIOS, but shutdowns still occurred.
I also ran MemTest86 overnight, completing all 16 tests with zero errors—my RAM seems fine. I clarified that the multiple external HDDs are only for storage, not as drives, so they shouldn’t affect performance. The only drive installed is the NVMe SSD in the M.2 slot on my motherboard.
At this point, I’m stuck. The shutdowns seem tied to BIOS settings or hardware quirks rather than a physical damage to the board. My CPU is from the 12th Gen 700 series, and I thought clock speed mismatches might be the cause. I also wondered if RAM compatibility with my CPU could be an issue. But so far, everything checks out except the motherboard itself.
I’m open to suggestions—any software or steps you recommend for further troubleshooting would be greatly appreciated. Please share your profile and event viewer logs if you can, so I can better assist.
Thanks!
The brand and model details for the RAM and PSU are not specified in the information provided.
I've encountered the same problem after swapping out my motherboard and PSU, and it's now resolved. The unexpected shutdowns have stopped completely.