Bob Blick ftml.net> writes:=20 > I've found that pointing a fan at a security DVR to reduce the case > temperature dramatically increases the life of hard drives. Duplicate Capacitor life is known to increase 2x with every 10degC temperature decrease, other conditions being the same. I assume spinning machinery's oil/bearing parts follow some similar wear law. This reminds me I have spinning disks which are 10 years old... http://www.powerguru.org/wordpress/wp-content/uploads/2012/07/The-lifetime-= multiplier-is-found-at-the-intersection-of-the-actual-operating-parameters.= jpg --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .