Random Reboots

[Sevilla]

So I built a new 4930K system. Specs are as follows:

 

EVGA GeForce GTX 780 Ti Classified      

Western Digital Blue 1TB x 3 (2x1TB RAID 1)      

ASUS Rampage IV Black Edition           

G.Skill Trident X 16GB DDR3 @ 2400Mhz         

Cooler Master Silent Pro Gold - 1000W              

i7 4930k - Overclocked @ 4.5GHz       

Samsung 840 SSD 500 GB                       

 

I've had this built running for roughly 2 weeks. Once built, I overclocked it to 4.5GHz and ran Prime95 for about 5 hours+ and I had no errors shown. I've been playing, streaming, multi-tasking with this build without issues, that is until today.

 

I turned on my PC this afternoon, turned on Twitch and was watching a streamer, had TweetDeck open, Outlook, 2 sessions of Chrome and World of Warcraft running (I have 3 monitors). Within roughly 20 minutes of playing/watching, my screens went black and my computer rebooted (no full power loss as the PC still had all LED lighting running/temp sensor was also still on) and went back to Windows. I checked to see if maybe it was a brownout or some sort of power issue but all of my electronics connected were working as if nothing happened.

I then checked for a dump file, nothing, all I got was in the event viewer a Kernel-Power critical event. Again, no BSOD or dump was generated. Being a PC tech myself, I never leave these things to random chance, but I figured I'd try to replicate the issue. So I went ahead, reopened everything and within 15 minutes, the same happened, again, no BSOD/dump file. Considering I've had no dump to go off of, I reinstalled the NVIDIA drivers (just because) and turned off the PC, unplugged the PSU from its cord and pushed the power button while unplugged. Replugged PC, began running Prime95 for an hour, no issues, OCCT for another hour, no issues. So I figured I'd replicate the same thing I did and see if it would happen again--it didn't/still hasn't almost 2 hours+ in.


Some background information:

Last night there was a pretty strong thunderstorm going on in my area. Once it began, I powered off my PC, and shortly after (30 mins into it) I turned off the switch on the power supply for extra precaution. It remained off all night until this afternoon when I powered on the PSU again to use it. The power never went out at my place, no brown-outs or black-outs. 

Another thing worth mentioning is that my PSU is about 2.5 Years old (5 year warranty from Cooler Master--also the oldest component in my system, other than the case).

 

One last thing worth mentioning was that some people were experiencing this because of the motherboard and how they overclocked. I tried to tweak a few things on my overclock but it would lead to BSODs anytime I'd try to run a stress test on it with any settings other than my own OC settings.
 

I am going to purchase a UPS within this week so I can remain using my PC during storms (yay Florida weather), but I am concerned it could be my PSU. Any ideas?

[Deletive]

Turn down the overclock or up the voltage. Linus has had PC's crash even after 24 hours of Prime 95.

[Sevilla]

Right, and most Prime95 errors would cause a BSOD where as mine shows nothing of the sort.

Either way, Prime95 is loading the CPU to extremes, running WoW and a few other windows with videos isn't even stressing the CPU remotely to the lengths of a Prime95 torture test load. I am willing to entirely go back to stock to see if the problem goes away, but in the meantime I am hard pressed to believe it's the overclock considering I haven't turned it down at all and have replicated the same exact tasks each time (even so right now for 3rd hour in a row) without a single crash/reboot.

[Sevilla]

I guess what I am trying to say is that yes, I am willing to accept that it could be in fact my overclock--that's a given. But considering I got Prime95 to generate a dump file every failed overclock until 4.5GHz, I am just not 100% convinced it could be it.

I am mostly looking for alternatives beyond the "it's obviously the overclock," Reading on various other forums, a lot of alternatives were given but I'd like the opinion of the people here.

[Sevilla]

Been running OBS with a high setting to stream WoW through the night and have yet to have the issue replicate.

Still overclocked.