A daughter-board cover of a system board device which daughter-board cover covers daughter boards can be removed by a simple operation in a short time. The system board device is adapted to be subjected to forced-air cooling. At least one electronic part generating heat is mounted on a motherboard. A...http://www.google.com/patents/US6023412?utm_source=gb-gplus-sharePatent US6023412 - System board device having a displaceable daughter-board cover
