BSOD with AVG scan or playing ARMA2

Alright, I am consistently getting BSOD's with different bug check names, depending on what I was doing at the time. The one consistent thing about the BSOD is that it seems to happen when the CPU is at full stress, the two prevalent causes being an AVG virus scan or running ARMA 2 for several hours, both of which can put the CPU at full stress on all cores.

I started having these BSODs following a period of overclocking over about 2 years. I had my CPU overclocked to 4.6 ghz without issue for that time. Then the first PSU failed under stress, which I replaced only to suffer damage to the new PSU shortly thereafter prompting me to restore all default clock settings. The second PSU still functions albeit with a horrible buzzing noise letting me know it's soon to fail. I have since replaced that PSU for fear that it might damage some of my hardware by not proving proper voltage. I am starting to think I might be too late, and the either the RAM or the CPU needs to be replaced. Everything runs within acceptable temperature while at stress, the CPU never breaking the 50's C.
But if I run an AVG virus scan I am guaranteed to get a BSOD every single time.

I've included the required information below, give it to me straight is my CPU on the way out?

Good to know that it's not the CPU, at least I don't think so anymore. The BSOD's have gotten much more common in occurrence, happening in more and more programs. It's gotten to the point where I can't reliably run any game without expecting it to BSOD soon after. I'd originally updated AVG after your post and ran more scans, that no longer caused BSODs, but it kept happening in other programs. I disconnected my storage HDD (OS is on the SSD) and updated my SSD's firmware since it was very out of date, but still no dice, the BSODS continue to become more common. Multiple drive checks before and after the firmware update, reinstalled software... and here I am. I've included the new crash dumps below, though they all seem to say the same thing.
I'm currently in the process of reformatting my HDD so I can reinstall the OS onto it and open up an RMA for my SSD since it's still under warranty. Unless my dumps point to something else I don't know what else it might be. Data corruption and BSODs on any and all programs, likely next my OS will stop booting altogether.

The XFast USB? I did try updating it, guess I'll just get rid of it now, no reason not to. I'll also try the scan as you suggest, as well as imaging if all else fails.

Thanks, by the way. Got a game plan now, I guess. That driver is gone now hopefully, will try to coax it into BSOD'ing, if it does I'll do that SFC scan, if that doesn't help out, I'll image the drive, if it still BSOD's then... ... at least I'll know it wasn't the SSD, or the HDD.. back to wondering if it's the CPU or RAM at that point.

The SFC scan found some corrupt files but wasn't able to fix some of them.
Edit:
I ran a second scan after rebooting and it didn't find any violations this time, hrn. I'll see if I get any BSOD's, if I do it's on to imaging.