Computer shutdown by itself twice. Then a few minutes after turned back on, please help.

[JohnTHDW]

Hello,

Today I turned on my computer in the morning, then I went to play a game and maybe 10-15 mins while in the game the computer turned itself off. Try to turn it on and wouldn't turn on. Then 1 minute after turned on again.

Then maybe almost 1.5-2 hours after finishing my game the computer turned itself off again but this time I didn't try to turn it back on since I decided maybe needed some cleaning, checking cables, etc. While I was waiting maybe 3 mins after the computer turned ON by itself!

What could be the problem? I haven't installed anything and temperature readings seems fine.

Any suggestions? I went to event viewer and this is what I found:


1st event:


Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 8/4/2015 6:53:51 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: JOHN-PC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />


2nd event:


Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 8/4/2015 8:57:55 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: JOHN-PC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />




Thanks a lot for all your help. I really appreciate it.





EDIT:

Today It happened again and twice! same as yesterday! now it's running fine like yesterday for the rest of the day.

This is weird, why this is happening and twice again?

These are the logs from today, 6 mins apart!






Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 8/5/2015 7:42:31 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: JOHN-PC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>41</EventID>




Log Name: System
Source: Microsoft-Windows-Kernel-Power
Date: 8/5/2015 7:48:20 AM
Event ID: 41
Task Category: (63)
Level: Critical
Keywords: (2)
User: SYSTEM
Computer: JOHN-PC
Description:
The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<EventID>41</EventID>

 

[JohnTHDW]

Using a DMM (Digital Multi-Meter) to measure the voltages will tell you if the motherboard's sensor chips are incorrectly calibrated.

AMD 970 chipset motherboards have been known to be flaky.

If you leave Chrome running then any Chrome updates will be automatically downloaded but not applied until you shut down Chrome and restart it.

Hmm, I just thought it was strange that everything went frozen and just today that I changed the PSU.

That usually happens with Chrome updates?

 

[ko888]

Using a DMM (Digital Multi-Meter) to measure the voltages will tell you if the motherboard's sensor chips are incorrectly calibrated.

AMD 970 chipset motherboards have been known to be flaky.

If you leave Chrome running then any Chrome updates will be automatically downloaded but not applied until you shut down Chrome and restart it.

Hmm, I just thought it was strange that everything went frozen and just today that I changed the PSU.

That usually happens with Chrome updates?

I've never encountered a problem like that with Chrome 64-bit version on Windows 7 but there is a known crashing issue with Windows 10.

 

[JohnTHDW]

Thanks a lot for all your help. I really appreciate it. I solved my problem. Thumbs up!

 

[ko888]

Thanks a lot for all your help. I really appreciate it. I solved my problem. Thumbs up!

How did you solve it? It may be of some help to others in the future if they knew what the solution was.

 

[JohnTHDW]

Thanks a lot for all your help. I really appreciate it. I solved my problem. Thumbs up!

How did you solve it? It may be of some help to others in the future if they knew what the solution was.

Well, the solution was to replace the PSU as your recommended. Thanks again! I wish I knew about XFX quality before buying that Cooler master PSU.