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Dell Precision Tower 3420 Owner's Manual

Removing the heat sink fan cover

  1. Follow the procedure in Before Working Inside Your Computer.
  2. Remove the cover.
  3. To remove the fan duct:
    1. Holding the touch points, pull the fan duct bracket to release the fan duct [1].
    2. Lift the fan duct away from the computer [2].
    Figure displaying removing the heat sink fan cover.

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