The present invention provides a method and apparatus for enabling or disabling an ISA adapter or bus expansion device. In one embodiment of the invention, the housing slot is first checked to see whether the device is installed. If the device is installed and is malfunctioning or defective, the device...http://www.google.de/patents/US5940586?utm_source=gb-gplus-sharePatent US5940586 - Method and apparatus for detecting the presence of and disabling defective bus expansion devices or Industry Standard Architecture (ISA) adapters
