That's why I specifically said to run a GPU test and CPU stress test at the same time. You aren't pulling nearly as much power with only testing the CPU.Running a stability test in AIDA64 now - stressing everything but the local disks. 25+ minutes no hard reboot.
This only seems to happen during practical use, ie: gaming - and not during stress tests.
Or hell, even try running Furmark (as much as I say not to) alone and see if it happens with the GPU.
It's not a lack of power that's the issue...a PSU may fix it, but so would a new 7/8/950W if that's the case.
... I get you're burned out though. Let's hope the new PSU just works!