A heat sink assembly for removing heat from an electronic component includes a retention clip having a central body and a securing member extending from the central member. The central member has an opening there through, and the securing member is configured to secure the retention clip relative to the electronic component. A heat sink has a base member received through the opening when the heat sink is mounted to the retention clip, and the base member has an engagement surface configured to engage a heat generating surface of the electronic component. A locking mechanism secures the heat sink to the retention clip. The locking mechanism includes a ramp member and a ramp engaging member, wherein the ramp member has a positive stop provided therein. The positive stop provides a tactual indication when the heat sink is fully secured to the retention clip.

 
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> Portable electronic apparatus having a cooling device

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