Mike McCarty wrote on Saturday, January 06, 2007 7:48 AM -0600: > The two most common causes of PS failure are spikes on the AC and > failing fans or otherwise obstructed air flow.
Transients in the AC line causing damage to power supplies is a design issue for the supply. We have known for years how to protect supplies from line transients and how to prevent transients from reaching the supply outputs. While the energy in line transients and the power line impedance are statistical quantities, the root cause of this failure is inadequate design. It is not normally related to production quality. Even on well-designed power supplies, the fan is far more likely to fail than any other component. It is not difficult to have the supply gracefully shut down if the airflow stops for any reason, but this feature is often absent from consumer-grade PC power supplies. -- Seth Goodman -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
