Abstract: An expandable data processing chassis and method of assembly of an expandable data processing chassis includes stackable circuit board housings and a central circuit board housing. The stackable circuit board housings and the central housing each have a rigid interlockable stabilizing frame plate to maintain mechanical tolerances as stackable circuit board housings are added to the stack. Each of the circuit board housings also has an associated backplane for coupling the circuit boards received in each housing to each other and to the central housing. The backplanes also extend to a power backplane for supplying power to the circuit boards received in the expandable data processing chassis.

Abstract: An expandable data processing chassis and method of assembly of an expandable data processing chassis includes stackable circuit board housings and a central circuit board housing. The stackable circuit board housings and the central housing each have a rigid interlockable stabilizing frame plate to maintain mechanical tolerances as stackable circuit board housings are added to the stack. Each of the circuit board housings also has an associated backplane for coupling the circuit boards received in each housing to each other and to the central housing. The backplanes also extend to a power backplane for supplying power to the circuit boards received in the expandable data processing chassis.