Why my computer restart itself like i press the reset button on computer case?

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s.amawaka

s.amawaka

Mar 2, 2018
17
0
10
My computer restart itself like i press the reset button on computer case, i'm still not sure it is because of power supply, because sometimes i can use my computer all day without restart, sometimes on the next day i just turn on and log on to windows and my computer restart itself a few minutes later, i did uncheck the automatically restart on startup and recovery, i did check my RAM with memtest86 in 12 hours and there no single error, i did unplug my reset switch from computer case on motherboard but it still happens, and also my hard disk drive still good, is there any settings that makes my computer restart itself without warn in windows 10? or it is because my power supply or my motherboard?
 
Solution
Phillip Corcoran
Check the event logs (Event Viewer) as has already been suggested - - - in the "Windows Logs >> System" section look for date & time in the log which corresponds with the time it suddenly restarted, then read any events linked to it. That may provide some clues, though you may need forum help in deciphering what it says as it often tends to use technical terms.

Unexpected Windows restarts are usually caused by intermittent faulty hardware - - - the worst kind to diagnose short of substituting suspect components until the problem stops occurring.

Make sure all connections everywhere are pushed fully home & firmly connected before buying/replacing anything - - as bad connections can also cause erratic behaviour & intermittent...
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terry4536

terry4536

Glorious
Mar 28, 2010
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Usually if the PC restarts on it's own it is either an update that requires a restart to apply the update or it is due to a power surge or interruption.

You can check the Windows update history for the first situation. You can also check the event history.
 
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s.amawaka

s.amawaka

Mar 2, 2018
17
0
10

Honestly there is no update before my computer restart itself

 
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terry4536

terry4536

Glorious
Mar 28, 2010
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Also if the power supply detects a fault it will shut down (off). If the power supply gets too hot, it will shut down. But typically it would require you to turn the system back on.

There is also the sleep function that sets the system to "sleep mode" (it will appear off) until you move the mouse or touch the keyboard keys. There is also a similar feature for the monitor. There is also the feature to shut the system off after a designated period of inactivity.
 
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terry4536

terry4536

Glorious
Mar 28, 2010
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The update could have downloaded earlier and then was applied when the system started.
 
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Phillip Corcoran

Phillip Corcoran

Titan
Moderator
Sep 7, 2013
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Check the event logs (Event Viewer) as has already been suggested - - - in the "Windows Logs >> System" section look for date & time in the log which corresponds with the time it suddenly restarted, then read any events linked to it. That may provide some clues, though you may need forum help in deciphering what it says as it often tends to use technical terms.

Unexpected Windows restarts are usually caused by intermittent faulty hardware - - - the worst kind to diagnose short of substituting suspect components until the problem stops occurring.

Make sure all connections everywhere are pushed fully home & firmly connected before buying/replacing anything - - as bad connections can also cause erratic behaviour & intermittent problems.
 
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Solution
s.amawaka

s.amawaka

Mar 2, 2018
17
0
10


it happened a few weeks ago, it was not long before i made this post and at that time i checked the hardware health one by one from the hard disk, RAM, and also make sure all connections are pushed fully home & firmly connected but it still happened, but i don't know why after i did checked RAM for 12 hours with memtest86 and no single error, my computer never restart again and then i cleaned up my computer and once again make sure all connections push fully home & firmly without any gap, until now i'm still not sure if it is caused by windows update, because before and after restart there is absolutely no single update until a few days later when windows released the new updates and i restart pc by myself, maybe if it happens again i will try to check it through event viewer, thanks for the advice.

 
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