Computer shuts down at random. No freezing or looping.

[I3reeze]

Hey all,

My computer has been just shutting down at random, usually while playing games (Overwatch) and will then start up again on it's own. It doesn't give me any screen telling me "Windows shut down incorrectly" or anything.

A while ago, it would freeze up and loop audio. I'm under the impression that it did that because of Realtek and Voicemeeter fighting over audio sources. So, I've been using a different solution to split audio lines which does not include Voicemeeter; only using Virtual Audio cables.

Anyways, I'm not sure that's the problem, and I can't disprove it.
I've seen another post like this where the selected answer said that the PSU was likely failing. Is there a tool I can use to monitor my PSU to see if something odd is happening before the crashes?

Heres an Afterburner log of a few minutes up to the most recent crash: http://imgur.com/a/67QKL

Here's my PC part list: https://pcpartpicker.com/user/I3reeze/saved/vwpWGX
Only thing that's changed is the GPUs were switched out to a 1080Ti.

Also, I'm not sure it's needed, but my list of normally open programs includes Chrome, Discord, OBS, Afterburner, and sometimes Vegas Pro 13.

 

[The Paladin]

Are you overclocking your CPU ? the GPUs?

 

[I3reeze]

Are you overclocking your CPU ? the GPUs?

Ah, I am. The CPU is overclocked with auto settings within the BIOS to like 4.6 GHz. GPUs are at default clocks.
Since the CPU has a watercool/vent cooling system, and it's staying around 45C, I wouldn't think that's an issue.

Edit: When turning down the CPU clock speed in the BIOS, I noticed there's a setting to shut down the computer when the Motherboard overheats. I'm not sure what temps a Mobo is meant to withstand, but I am now monitoring that temp within Corsair Link thanks to my Corsair watercooling system.

Haven't had another shutdown yet, but we'll see.