Computer Randomly Shutting off

[Human_Error()]

Hello,

So I have recently run into a new issue which I have never encountered before and was wondering if anyone has had any previous experience with this issue. So what happens is I will be using my computer, and if I leave it alone for some time, lets say 30 minutes or more (although sometimes its been up to 8 hours of idle time) my computer will randomly shut off and sometimes I wont be able to get it turned on for a good 15-20 minutes. Here are a list of things I have tried troubleshooting:

 

-I have reverted the overclock on my i7-3820 back to its stock 3.6Ghz

-Wondering if inadequate CPU cooling was causing the issue, I began to log my temps which revealed that they were all running within the norms right before the computer shut down

-I have double checked all of my windows power settings to make sure that there is no setting which turns off the computer after a certain time period.

 

The weirdest thing is that the computer only shuts off when it is idle. It has never stopped working when I have been actively using it. Even when I was trying a stress test, or playing a demanding game like titanfall the computer did not shut off. I was wondering if I have overlooked anything to troubleshoot or if anyone else has run into this issue. I will list my specs below:

-Windows 7

-Intel i7-3820

-Corsair H100i Cooler

-GTX 680

-Corsair CX750M power supply

-Samsung 840 EVO SSD (boot drive)

-WD Blue 1TB hard drive (mass storage)

 

Thanks!

[vlkn´]

thats a problem with the sleeping function of windows, I only had this issue with windows vista.

[Human_Error()]

thats a problem with the sleeping function of windows, I only had this issue with windows vista.

Is it a bug? because I have already made sure to disable any sleep functions that windows might have.

[vlkn´]

Is it a bug? because I have already made sure to disable any sleep functions that windows might have.

U may need to change the profile in windows, there are different profiles "balanced" "energysaving" "max performance".

and you need to click "change energysavingoptions" to customize the profile, some energysavingfeatures may be activated as monitor and hdd will turn off after "%%" minutes.

Disable also the pci express saving option. 

 

Windows 7 Servicepack 1

[Human_Error()]

Ok thanks!, I will give it a shot and see how it goes, crossing my fingers

[Human_Error()]

U may need to change the profile in windows, there are different profiles "balanced" "energysaving" "max performance".

and you need to click "change energysavingoptions" to customize the profile, some energysavingfeatures may be activated as monitor and hdd will turn off after "%%" minutes.

Disable also the pci express saving option. 

 

Windows 7 Servicepack 1

Ok yeah, I just left to get something to eat, and when I walked back into my room (not more that 5 minutes from when I left) It had shut off again. I made sure to change and  double check all of those settings but it still shut off.   I don't even know if it had time to go idle

[vlkn´]

Ok yeah, I just left to get something to eat, and when I walked back into my room (not more that 5 minutes from when I left) It had shut off again. I made sure to change and  double check all of those settings but it still shut off.   I don't even know if it had time to go idle

The only thing left is your mainboard bios. Search for the keywords "power" "saving" "ACPI" and disable the sh*t out of it.

[Human_Error()]

haha ok, thanks

[Novasty]

Check the event viewer, see if that give any light as to why it randomly shuts off.

[Human_Error()]

Check the event viewer, see if that give any light as to why it randomly shuts off.

Thanks for the tip! I checked the event viewer and noticed this error message repeating every time a system shut-down happened: "The previous system shutdown at 9:45:35 PM on ‎12/‎21/‎2014 was unexpected.". I think this pretty much rules out any intentional shutting down on windows' part.

[mark201200]

May be the psu, see if you have another PSU and see if it still shuts down