Inspiron 14 Plus 7440 Owner's Manual

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Installing the USB board

CAUTION:The information in this section is intended for authorized service technicians only.

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

NOTE:If either the system board or the heat sink is replaced, use the thermal grease that is provided in the kit to ensure that thermal conductivity is achieved.

The following image(s) indicate the location of the USB board and provides a visual representation of the installation procedure.

Figure 1. Installing the USB board
Image: Installing the USB board

Steps

  1. Position the USB board near the USB-board cable and ensure that the USB-board cable latch of the USB board is visible.
  2. Fold the USB-board cable towards the USB board.
  3. Connect the USB-board cable to its connector on the USB board and close the latch.
  4. Flip over the USB board and fold the cable back towards the palm-rest and keyboard assembly.
  5. Replace the screw (M2x3) that secures the USB board to the palm-rest and keyboard assembly.
  6. Connect the fingerprint-reader cable to the USB board and close the latch.
    NOTE:This step is only applicable for computers that are shipped with the power button with an optional fingerprint reader.
  7. Close the left-display hinge and align the screw holes on the left-display hinge with the screw holes on the palm-rest and keyboard assembly.
  8. Replace the two (M2.5x5) screws that secure the left display-assembly hinge to the palm-rest and keyboard assembly.

Next steps

  1. Install the heat sink.
  2. Install the fan.
  3. Install the base cover.
  4. Follow the procedure in After working inside your computer.
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