I hope PhilB has figured out his problem- I am having the same issue as I'M sure many do from time to time- especially by installing super powerful GPU's into boxes that never had them.
What I think is obvious which is not being explored rather than what is being suggested: Use this tool (or another tool) to monitor and GRAPH the power supply's health (watt output and voltage, etc) over TIME so that when we see a catastrophic failure, we can actually look at the logs to see what the voltage etc was when it happened.
Can we do this with AIDA64 Extreme (or one of the other variants)?
