Abstract: Disclosed herein is a system for mounting circuit boards in a computer bay, comprising: a plurality of distinct rails fastenable within a common base board to enable receipt of differently sized circuit boards. Further disclosed herein is a method of mounting circuit boards to a base board, comprising: identifying a particular rail from a plurality of rails that are compatible with a common base board, said identified rail being receptive to a target circuit board; engaging the target circuit board with the rail and causing electrical connection of the circuit board with the base board.

Abstract: A heat exchange apparatus having a housing that includes a first region and a second region, and a wall separating the first region from the second region, is disclosed. The second region includes a fluid flow entry port and a fluid flow exit port to define a fluid flow path, and a heat exchanger exposed to the fluid flow path. The heat exchanger includes first and second portions in thermal communication with each other, where the first portion is disposed at the first region and the second portion is disposed at the second region. The fluid flow path is isolated from the first region and provides for the removal of heat from the first region.

Abstract: A first circuit board connectable to a second circuit board is disclosed. The first circuit board includes at least one set of contacts, a detection circuit, and a voltage generator. Each set of contacts is configured to receive an electrically conductive keypin for bridging a set of the contacts. The detection circuit is in signal communication with the contacts and produces a logic signal in response to a set of the contacts being bridged. The voltage generator is responsive to the logic signal and produces a voltage signal at a connector connectable to the second circuit board. The voltage signal at the connector has a first voltage in response to the keypin being disposed at a first location, and a second different voltage in response to the keypin being disposed at a second location, wherein at least one of the pin locations results in a set of the contacts being bridged.