Patent ID: 8144459

Claim:
A heat dissipating system, comprising: an enclosure having a front panel, a rear panel parallel to the front panel, a side panel, and a top panel, the top panel connected between the front panel and the rear panel, the top panel, the front panel and the rear panel connected to the side panel, the rear panel defining a first output vent, a disk drive module disposed on the front panel and nearing the top panel, a motherboard with a CPU attached thereon; a first fan module configured to dissipate heat generated by the CPU; and a second fan module of a computer power source placed on the rear panel and aligned with the first output vent of the rear panel; wherein the top panel defines a plurality of airflow holes corresponding to the disk drive module, the plurality of the airflow holes capable of allowing air to flow to the disk drive module for heat dissipation; the first fan module comprises a heat sink placed on the CPU, a heat sink cover, and a fan secured on the heat sink; the heat sink is disposed between the CPU and the fan; the heat sink comprises a plurality of fins, a first mounting portion, and a second mounting portion; each of the plurality of fins having an angle portion; the heat sink cover is placed on the heat sink and covers the angle portions; the heat sink cover defines a first through hole; the first mounting portion comprises a first fastener secured to the motherboard in a first direction; the second mounting portion defines a securing hole corresponding to the first through hole; a second fastener is secured into the first through hole and the securing hole in a second direction substantially parallel to the first direction to secure the heat sink cover to the heat sink.