Custom Computer Freezing Randomly Requiring Manual Restart

AssumingUnicorn

Honorable
May 14, 2013
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This has been happening for a couple of days now. I haven't touched anything inside the computer case since I moved everything into it about 2 weeks ago and there aren't any holes where some animals can crawl into. Also, when I say freezing, I mean the whole screen is still and there's a continuing medium-pitch "beeeeeeep" sound up until the moment I turn it off.

PC Specs:
Case: Corsair 750D
MOBO: Gigabyte GA-970A-UD3
CPU: FX-8350 @ 4.4 GHz, 1.360V
GPU: XFX 7950 @ default clock
PSU: Corsair TX650 fan facing down
CPU Fan: Hyper 212 Evo
RAM: 4x4GB G.Skil RipJaws 1600 @ default clock
Memory: 1 TB WD Blue, 1 256GB Kingston SV300 SSD

I can't seem to figure out the problem. It's never done this before. It usually freezes when I'm playing games but while having task manager up, usage is less than 20%. It occurs often when i have both my WoW windows running AND watching a video/stream. If it's one or the other, chances are really low. But even with both of those running, usage is still less than 40%.

HWMonitor:
cexmHuk.png

CPU-Z:
yu02z9m.png

I've had this setup minus the new case and SSD for about 2.5 years so my only guess is that my PSU is dying for whatever reason.