| 摘要 |
A locking device for mounting a heat sink to a CPU mounted on a printed circuit board, includes a back plate mounted below the circuit board and having a plurality of posts extending upwardly through the circuit board and the heat sink, and a plurality of retainers. Each retainer includes a pressing section resting on the heat sink, a locking section extending from the pressing section, and an operating section extending from the pressing section and opposing the locking section. Each post is extendable through the pressing section of a corresponding retainer to engage with the locking section.
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