On Sat, 2007-09-29 at 18:43 -0400, ed@hp.uab.edu wrote:
Also, match the power supply to the load. If you only need 50 watts, do not buy a 400 watt power supply. I think I have a 150 or 200 watt power supply in my VIA C3 computer, LPX form factor.
While you don't need a huge supply, one bigger than your current needs gives you more room to play with later on, if you have to add something, or the power supply gets a bit sick. The wattage is the capacity of what it can deliver, not that it's always going to draw 400 Watts from the mains and be a drain on your electricity bill.