A plurality of heat sinks in one example is coupled to a support structure. The support structure has a plurality of independent spring force elements that respectively contact the plurality of heat sinks such that each heat sink of the plurality of heat sinks is moveable within the support structure relative to the other heat sinks of the plurality of heat sinks. The support structure is coupled to a substrate having a plurality of components, each of the components having an upper surface, at least two of the upper surfaces being non-coplanar. The non-coplanar upper surfaces of the components are respectively coupled to the plurality of heat sinks by respective thermal interfaces.