| 摘要 |
A cooling fan assembly includes a base, a dial knob and a blade wheel. The base provides a shape of channel and having a hollow part with an annular rail. The dial knob is received in and joined to the hollow part and provides a plurality of projections at the circumferential wall thereof to fit with the annular rail with at least an air discharge hole at the circumferential wall thereof. The blade wheel is mounted in the base. The dial knob can be turned to adjust direction of discharged air flow. Hence, the discharged air can move toward other chip sets in addition to dissipating heat of the chip processor under the cooling fin such that a single radiating structure can cool both the chip processor and the other chip sets.
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