More so now than ever people are realizing just how important it is to have a good quality power supply included in their setup. For example, if you are running a stock 300 watt power supply in today's high-end setups you are almost certain to run into a slew of problems. Random reboots, freezing, blue screens, etc. are some of the problems that could persist if your system is not adequately powered. It's probably good logic to overestimate the amount of power needed for your setup to prevent any of these types of problems from occurring.



Link: TWL