That was definitely the case with the 300-watt power supply that I had in my case. A 300-watt power supply should be plenty of juice for any normal person. I had thought so when I upgraded to mine from the stock 250-watt power supply that came with my InWin Q500 full tower case. But, when I could literally hear my fans start to fade out when I had some serious disk access going I knew that I had underestimated. I decided that I would never again fall short in the power department.
Drastic situations require drastic measures.
AMK Services made my quest for power a short, but sweet journey. Everything I needed in a power supply for the price of an above average 300 watt power supply. If that's still not good enough I'll keep it simple. As overclockers we're extremists. By nature we like excess.