Have you booted to Safe Mode and checked for viruses and malware? That's one possibility. Are you current on Windows maintenance? That's another. Have you checked for bad sectors? Still another. Have you run SFC and checked for corrupt files? You could also look at the system event log for entries flagged "error". You didn't mention any of these, so I just did. PSUs do age over time, so that's just one more thing to check out. Multimeters are inexpensive. I bought one for $15 a couple of months ago. And of course with a 6 year old computer, bad caps are another possibility. You just have to eliminate the possibilities one by one 'till you find the problem. Of course a new PC would solve the problem too.
Just recently i have problems that computer suddenly reboot itself (and after a few reboots it sometimes shuts down without rebooting again automatically).
This happens during windows loading screen, login screen, playing graphic intensive games, surfing websites.
When it does run, everything seems to run fine: internet, sound, all programs, graphics cards, monitor, etc.
- No smoke detected when rebooting occurs and probably in all occasions.
I do noticed that after it reboots the first time, the second reboot arrives earlier than the first (that is, first time it might take 15 minutes, but if it reboots and continue it usually reboots within 15 seconds.)
I monitored motherboard temperatures (10 points temperature sensor on MB), cpu and gpu and they can all run intensive tasks like games with no temperature problems (I use liquid cooling nxzt kraken)
- No software changes were made when this happened. Using win 7 32-bit. Also no hardware changes were made as well.
Do you think:
1) It can be short circuit in motherboard that causes this spontaneous rebooting?
2) My PSU is almost 6 years old. Can a "nearly" failing or "slightly" faulty PSU cause this spontaneous rebooting? I would like to use the word nearly or slightly because it can still run my computer for tens of minutes.
3) Short circuit in some components?
Thank you for any advice at all.