A 500-watt power supply should be adequate for most purposes if your system doesn't include multiple hard drives, a high-end graphics board, and other energy-
hungry devices beyond the recommendations given here.



I chose the Antec NeoPower 650 because of its quiet fan, and because its 650-watt rating provides a healthy margin to accom- modate upgrades.

When installing your power supply, try to route the various cables along the interiar edges of the case so that they don't obstruct airflow.