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Dell OptiPlex 7070 Ultra Service Manual

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Removing the system board

Prerequisites

  1. Follow the procedure in Before working inside your device.
  2. Remove the hard-drive assembly.
  3. Remove the cover.
  4. Remove the system fan.
  5. Remove the WLAN card.
  6. Remove the solid-state drive.
  7. Remove the memory.

About this task

The figure indicates the location of the system board and provides a visual representation of the removal procedure.

Removing the system board

Removing the system board

Steps

  1. Disconnect the power-button cable and the coin-cell battery cable from the connectors on the system board.
  2. Unroute the power-button cable and the coin-cell battery cable from the routing guides.
  3. Unroute the WLAN antenna cables from the routing guides.
    NOTE:Observe the routing of the WLAN antenna cables inside the chassis as you remove them. Route these cables properly when you replace the component to prevent the cables from being pinched or crimped.
  4. Loosen the M2x3 captive screw and remove the four (M2x3) screws that secure the system board to the chassis.
  5. Slightly lift and slide the system board out of the chassis.

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