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Dell OptiPlex 7470 All-in-One Service Manual

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Removing the heat sink - UMA

  1. Follow the procedure in Before working inside your computer.
  2. Remove the following components:
    1. Stand
    2. Back cover
    3. System board shield
    4. System fan
  3. Loosen the five captive screws in a sequential order [ 1,2,3,4,5] as mentioned on the heat sink.[1].
  4. Lift the heat sink off the system board and display assembly base [2].
    heat sink

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