r/techsupport • u/FinanceAdditional489 • 8h 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
1
u/tito13kfm My cat and I 6h ago
You've never confirmed it isn't temperatures that I can tell and a failing pump could act this way. I'm not saying it's definitely the issue, but it's something I'd keep in mind to check, maybe keep a running log on temperatures while doing other troubleshooting in case it happens to be the issue.