I'm not as good a PSU guy as some others here; some thoughts I have:
VCore: Looks low, but could be due to the CPU being in a temporary low power state
+3.3: Seems a bit low, though I believe still within spec. What concerns me is I'd expect voltage loss at load, not at idle, and the low VCore indicates your idling at the time of the screenshot.
From a tech perspective, 127 is the maximum value of an 8-bit signed integer value, which is what Intel/AMD use on their temp sensors, so it's possible the temp sensor failed high (possibly temporarily) resulting in a 127C reading. I doubt the CPU got even remotely that hot.
You'll need one of the experts to chime in on the voltage values, but I think the 125C warning was just a bad temp sensor reading.
Yeah the PSU right now is a MS-Tech 850 watt, and i've heard ALOT of bad stuff about it. im buying a new corsair PSU soon. The voltage screenshot was taken right after i booted my pc, almost nothing was running at that time.