I was running this system with a 450 watt power supply. Three days ago while on the internet I noticed the smell of something burning. Before I could realize where the smell was coming from, my PC shut off. I discovered that the power supply somehow roasted, but my other components were fine. What might have caused this? I went out and bought a 650 watt power supply which is installed at this moment. The brand is BFG. It has dual 12v rails and dual Dual PCI express connectors (among other things). It also has a button in the back which boosts the fan speed (though I dont have the guts to leave the fan on full blast). My main question is "Is having too much power a danger to your PC?" Thank you for reading
No, you can't really have too much power. The power supply has a potential to generate the power on the label, but having a bigger power supply does not force more power into your hardware nor cause your electric bill to rise.
More of a concern when buying a power supply is the quality of the power supply itself. Failure of a power supply can potentially fry other hardware as well. Also, cheaper power supplies do not provide as clean a power source for your components.
The biggest "danger" of going overboard on your power supply is the danger to your wallet, not your computer.
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