A secure device for a heat sink includes a frame and a plurality of
cylindrical posts. The frame provides a plurality of elongated
projections at the inner side thereof. Each of the cylindrical posts is
attached to the outer side of the frame. A plurality of split portions
are provided at the upper end of the respective cylindrical post. A
reversed deep countersink is provided in the cylindrical post and an
engaging piece is disposed at the inner side of the respective split
portion. A wedge locator is disposed at one of the split portions
corresponding to a lateral side of the heat sink such that the heat sink
is capable of being elastically secured with the wedge locator and the
elongated projections.