An exemplary apparatus generally includes a fence, a heat sink, and a thermal interface. The fence includes walls defining at least one opening along an upper portion of the fence. The walls are configured to be disposed generally about one or more electrical components of a board. The heat sink includes resilient fingers connected to a lid portion, and configured to engage openings of the fence and/or the board. The lid portion is configured to substantially entirely cover the at least one opening of the fence for cooperatively shielding the one or more electrical components within the interior defined by the lid portion and the fence's walls. The thermal interface is configured such that engagement of the resilient fingers with the openings compresses the thermal interface between the lid portion and the one or more electrical components, thereby forming a thermally-conducting heat path from the one or more electrical components to the heat sink.