Computer randomly turns off and won't start back up immediately

[OfficeCasual]

Computer randomly turns off and won't start back up immediately. Usually will turn back on within 30 minutes or so. This has been going on for a little while now. Shorting the power connection doesn't start it up. It seems to only happen during the morning and night. Also have just come back to or woken up to it not turning on around those times. Otherwise it seems to run just fine. I ran Prime95 Blend test for about 3 days in 16 hour intervals without turning it off right after it first started happening and they went completely fine. Aside from a minor issue with my mouse not functioning properly after the third test. Also mostly all the parts are less than 4 months old, only some are within a year or so older. Also all the mobo lights are still on and working normally while not booted.

 

[DustyDanglerX]

What psu do you have? Also since u ran prime i asume you where overclocking make sure your not overheating cpu and cpu fan cable is fully plugged in and heatsink is properly seated. What are your temps?

 

[OfficeCasual]

What psu do you have? Also since u ran prime i asume you where overclocking make sure your not overheating cpu and cpu fan cable is fully plugged in and heatsink is properly seated. What are your temps?

Temps are only between 50-60 on average with highs reaching 65. The PSU is a EVGA SuperNOVA 1000W PSU. All the cables are properly plugged in, checked at least twice over for them. Heatsink is properly seated.

 

[Inachu]

This can be tricky to solve just using a messageboard as your main soloution provider. Either you have hardware going bad or you could have a very bad virus infection.

Boot into safe mode and work with it for a while. If it also shuts down randomly in safe mode then something is really wrong and will need to diagnose more.