What motherboard and PSU do you have? In fact, full system specs might prove helpful.Last reading on Asus BIOS is 3.096 volts and there have been Asus monitor warnings of even lower voltages : +3.3 volts to 2.925. Can lower voltages than +3.3 volts damage my mother board ?
I think you have the right idea. Your PSU brand is unfamiliar to me but 9 years is a long time for any but high quality capacitors to be in use. Another common problem component are resistors that shift value.... By this time I am not sure the electrotic capacitors inside the PSU are still healty [ ? }.
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