Device stopped unexpectedly without any notice, no visual alerts, no shutdown screen, nothing apparent.
Device stopped unexpectedly without any notice, no visual alerts, no shutdown screen, nothing apparent.
It's possible the dirt or hair could affect the PSU over time. Since you clean regularly but have limited access to inspect it, removing the PSU might help identify any buildup. Checking for hair or debris inside could reveal potential issues.
I keep the PC powered all the time so I can manage it remotely whenever needed. Even when at home, it stays on, keeping everything in its original state and ready to use. I rely on it for work and some games like Age of Empires 2 DE and Doom. This time I finished cleaning it thoroughly, removing all cables so I could inspect the power supply unit. There was a lot of fine dust, but significantly less than expected. The mesh filter appears to be working well, allowing only the finest particles through. I blew as much dust from the PSU as possible. The PC is now running smoothly and will remain on as usual; we'll monitor it over the next 10-30 days to see if any issues arise.
I found the expected entries about the crash. However, today's logs only show the screen went black immediately after shutdown and the BIOS displayed a loading message—no freezing or warning about a crash occurred.
Two weeks passed without any issues. It seems wiping all the grime from the PSU might have resolved the problem. Sometimes dust or hair can create static electricity or cause power surges between components, leading to restarts. I didn’t expect it to be that severe, and I didn’t find any dog hair inside. I blew as much air as possible and returned the PSU. Since I didn’t apply any other repairs, this should have been the solution. All further actions were stress tests to confirm there were no errors in the CPU, RAM, etc.
I talked too quickly. The system crashed twice—once while browsing a website in Firefox and again during a game. The PSU cleaning didn’t solve the problem. I’m unsure what to do; I tried contacting them weeks ago, but they said it can’t be replaced and will check it further. I don’t know if it’s actually a PSU issue or another component failing. Even after standard tests, no problems appear in system logs. By the way, I realized my CPU was undervolted by 0.075V—this happened only when the PC was assembled and working fine. Could this now be causing these reboots? It seems the instability might stem from CPU degradation making the new voltage unstable, while stress tests still pass. Additionally, the BIOS thermal throttle is set to 75°C all the time, so the fans run quietly and never exceed that temperature.