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Inspiron 3505 Service Manual

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Installing the system board (Realtek audio controller)

Prerequisites

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

About this task

NOTE:This procedure only applies if you're installing a system board with a Realtek ALC3204 audio controller into your computer.

The following images indicate the connectors on the system board.

Image: System board cables

  1. Power-adapter port cable
  2. Speaker cable
  3. Keyboard cable
  4. Keyboard-backlight cable
  5. Touchpad cable
  6. Battery cable
  7. Hard-drive cable
  8. I/O-board cable
  9. Fingerprint-reader cable
  10. Power-button cable

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

Image:Installing the system board

Steps

  1. Place the system board on the palm-rest and keyboard assembly.
  2. Align the screw hole on the system board to the screw hole on the palm-rest and keyboard assembly.
  3. Replace the screw (M2x4) that secures the system board to the palm-rest and keyboard assembly.
  4. Connect the speaker cable to the system board.
  5. Connect the keyboard cable to the connector on the system board and close the latch.
  6. Connect the keyboard-backlight cable to the connector on the system board and close the latch, if applicable.
  7. Connect the touchpad cable to the connector on the system board and close the latch.
  8. Connect the hard-drive cable to the connector on the system board and close the latch, if applicable.
  9. Connect the I/O-board cable to the connector on the system board and close the latch.
  10. Connect the fingerprint-reader cable to the connector on the system board and close the latch, if applicable.
  11. Connect the fan cable to the system board.
  12. Connect the power-adapter port cable to the system board.

Next steps

  1. Install the display assembly.
  2. Install the wireless card.
  3. Install the heat sink.
  4. Install the fan.
  5. Install the memory module.
  6. Install the M.2 2230 solid-state drive, if applicable.
  7. Install the M.2 2280 solid-state drive, if applicable.
  8. Install the base cover.
  9. Follow the procedure in After working inside your computer.

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