Knowledge Management (KM) Definitions. Defining knowledge management (KM) has always been a challenge. For many years I resisted offering a definition because whenever I included a definition in a talk this would become the main focus of attention.
Motherboards can go bad for many reasons, although there are a few common culprits. Among the most common causes of motherboard failure are excess electrical shocks, physical damage, or excess heat. Some of these dangers are inescapable, and may vary in likelihood depending on your computer model.
The popping was caused by the rear speaker coil trying to push the cone, down into the boot enclosure, while the subs cones where also pushing out; the more powerful subs will then cause the small speakers to distort badly, causing them to fail. You may also have the wiring to the subs mismatched.