Windows 7 PC mysteriously turns off

Hello Help Desk My Windows 7 PC mysteriously turned its self off or re-set its self in the middle of the night twice.
Not sure why, maybe over heated, but i doubt it was a windows update because i checked the dates. Plus i have my PC set up to tell me 1st than i choice to update. If the power goes off, which it does allot the clocks would also re-set. What i am hoping for is any suggestions on free diagnostic tools that would be able to tell me exactly why it turned off, so i can prevent it from happening again.
Thank You
Cranial
Answer #1
You checked the event log??
Answer #2
Download blue screen view and check if your computer suffered from a blue screen
Also, were you doing anything in particular when your computer crashed? If you suspect temps, you could install realtemp and report any findings you deem as unusual or suspect
Answer #3
Check your power settings to see if there is any problem there with it being set to turn off after a certain amount of time, and check hibernation settings. ………. Then check under the carpet in your room to make sure there isn’t a little gremlin hiding there.
Answer #4
Thanks all for your responses.
I will work on this soon, not sure what Gremlins eat but i will try to flush him out
Answer #5
Thanks all for your responses.
I will work on this soon, not sure what Gremlins eat but i will try to flush him out
If they’re what Sid has in his underpants, you better be careful!
Hope you sort it.
Answer #6
The problem is that the excessive temperatures don’t get logged by default. You have to manually check the temperatures after hours of use. Or create a program that logs the temperatures for you…
Answer #7
Real temp will log the max temp reached but unfortunately resets after a shutdown, you could also have the case checked for shorts around the power button, a friend had this issue, sometimes it would stay on for days other times it would shutdown after 10 mins.
Answer #8
Thanks again guys, Last night the PC went off again. Thanks to your advice ie look for the event log, i was able to determine the problem is in the power.
Either a power outage or over heated. Said Kernal-Power was the reason.
This rules out all other causes and i can work on fixing it or getting a new PC , the better choice
Answer #9
A Google of that problem may give some idea..
https://www.google.com.au/search?q=event+log+says+kernal+power&ie=utf-8&oe=utf-8&gws_rd=cr&ei=B4h9VbKzCpfk8AWZ4IP4CQ