A fixing apparatus (30) for pressing a heat sink (70) against an
electronic device (20) positioned in a retention module (62), includes
two pressing members (32) and a fastener (52). An elongate slot (34)
is defined in a center of each pressing member. Two spring fingers (36)
extend inwardly and downwardly from the pressing member at opposite ends of the
slot respectively. An engaging portion (42) is formed at an end of the pressing
member. A locking leg (47) depends from an opposite end of the pressing
member. Two engaging slots (54) are defined in opposite ends of the fastener
for receiving the engaging portion of the pressing member. Two locking legs (56)
depend from opposite ends of the fastener respectively. A hook (48, 57)
is defined at a distal end of each locking leg.
