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8
ST43401N/ND and ST43402ND Reference Manual, Rev. C
Guidelines for proper air flow
Your enclosure design must ensure adequate cooling for the drive.
We recommend orienting the drive or directing the air flow in a way that creates
the least amount of air-flow resistance while providing air flow above the circuit
boards and around the head and disc assembly (HDA). Also, choose the
shortest possible path between the air inlet and exit. This minimizes the
distance traveled by air that is heated by the drive and by other nearby heat
sources.
Figure 5 shows the design approach with one or more fans installed. The air-
flow patterns can be created by the fans either pushing or drawing air. The
overall flow pattern can be directed from front to back, back to front, or side
to side.
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