Is my PSU causing random shutdowns?

[Bag_O_Chips]

^ Yep. I keep an open window on all builds with a second monitor during stress testing with CPU Z open, watching the clocks and voltages and any variance. I want exactly what the processor should be on the high end no crazy turbo or speedstep. Even on my own systems when I OC I do it manually within the bios with a multi raise in regards to I5/I7 I never ever touch the manufacturers software. For mild and middle OC's (including customer rigs) I see what the system will give me @ stock voltages, then stress it. If stable I raise a tiny bit for ultimate stability (so the customer won't be calling back lol),