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Inspiron 14 7445 2-in-1 Owner's Manual

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Installing the system 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

The following image indicates the connectors on your system board.
Figure 1. Connectors on the system board
Image: Connectors on the system board
  1. Fan-cable connector (FN1)
  2. M.2 wireless-card connector
  3. Display-cable connector(LCD)
  4. Memory module connector
  5. Keyboard-backlight cable connector(KBBL1)
  6. Keyboard-cable connector (KB1)
  7. Battery-cable connector (BATT1)
  8. Touchpad-cable connector (TP1)
  9. Speaker-cable connector (SPK1)
  10. I/O-board cable connector (IOBD1)
  11. M.2 solid-state drive connector (SSD1)

The following images indicate the location of the system board and provide a visual representation of the installation procedure.

Steps

Figure 2. Installing the system board
Image: Installing the system board

  1. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly.
  2. Replace the two screws (M2x2) that secure the system board to the palm-rest and keyboard assembly.

Figure 3. Replacing the USB Type-C bracket
Image: Replacing the USB Type-C bracket

  1. Align the screw holes on the USB Type-C bracket to the screw holes on the system board.
  2. Replace the two screws (M2x4) that secure the USB Type-C bracket to the system board.

Figure 4. Replacing the cable connectors
Image: Replacing the cable connectors

  1. Connect the I/O board cable to the I/O board cable-connector (IOBD1) on the system board.
  2. Connect the speaker cable to the speaker-cable connector (SPK1) on the speaker board.
  3. Connect the touchpad cable to the touchpad-cable connector (TP1) on the system board and close the latch.
  4. Connect the keyboard cable to the keyboard-cable connector (KB1) on the system board and close the latch.
  5. Connect the keyboard-backlight cable to the keyboard-backlight cable connector (KBBL1) on the system board and close the latch.

Figure 5. Replacing the hinge screws
Image: Replacing the hinge screws

  1. Replace the three screws (M2.5x5) that secure the right display hinge to the palm-rest and keyboard assembly.

Next steps

  1. Install the display assembly.
  2. Install the heatsink.
  3. Install the fan.
  4. Install the M.2 2230 solid-state drive.
  5. Install the wireless card.
  6. Install the battery.
  7. Install the base cover.
  8. Follow the procedure in After working inside your computer.

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