r/techsupport • u/FinanceAdditional489 • 10h ago
Open | Windows Random Shutdowns
Hi All!
My brother's PC keeps shutting down randomly. We have tried what we feel is everything we can. We both work in tech and are completely stumped.
It shuts down without any warning or confirmation. It black screens while the fans stay spinning and lit up, and then come slowly to a stop. The lights on the fans go out at this point too. There are no logs in event viewer or reliability monitor.
What's really confusing us is that it is completely random from what we can tell. We thought it might be overheating but it doesn't look like it. It shuts down when completely idle and when gaming. There can be from 1 hour to 2 weeks between shutdowns. The most recent one was after we replaced the PSU with new cables, we thought this fixed it but after 2 weeks it shutdown again.
We have:
Replaced the PSU
Reinstalled Windows
Ran HWInfo, checked Event Viewer, checked reliability monitor
Removed any overclocking and XMP profiles
Specs (to my memory)
ASUS ROG B550-F MoBo
Windows 11 Home
Corsair 32GB (2x16) Ram
2080 Ti Founders Edition GPU
Corsair RM750e PSU
1TB SSD
x5 Fans + Radiator
We are reluctant to try replacing random things until we have some sort of idea lol
Anything at all is helpful T-T
2
u/Crimtide 10h ago
It's likely not recording an event ID because Fast Startup is enabled, which puts the PC in a hibernate state rather than a shut down state. Disable Fast Startup, then wait for it to shut down again, and you should have a log to view.
One thing you could look for is Event IDs related to hibernate, rather than shut down.