Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
![Connect the cables onto the system board.](https://dl.dell.com/content/guides/public/Html/lat3120_sm/images/GUID-87FA9E92-E9F2-4B01-A973-8430560700BC-low.jpg)
![Install the system board and tighten the screws.](https://dl.dell.com/content/guides/public/Html/lat3120_sm/images/GUID-BE8F6F40-222A-44F5-A9AF-F52CD6FE1EBA-low.jpg)
![Connect the cables onto the system board.](https://dl.dell.com/content/guides/public/Html/lat3120_sm/images/GUID-F908792E-CD40-4FC1-8DE9-A1041864E1E5-low.jpg)
Steps
- Replace the system board into the computer chassis.
- For systems that are shipped with a USB Type-C port, replace the four screws (M2x3) that secure the system board to the computer chassis.
- For systems that are not shipped with a USB Type-C port, replace the six screws (M2x3) that secure the system board to the computer chassis.
- Replace the coin cell battery into its sot on the system board.
- Connect the coin cell battery cable to the connector on the system board.
- Replace the USB Type-A bracket on the system board.
- Replace the two screws (M2x3) to secure the USB Type-A bracket to the system board.
- For systems that are shipped with a USB Type-C port, replace the USB Type-C bracket on the system board.
- For systems that are shipped with a USB Type-C port, replace the three screws (M2x4) to secure the USB Type-C bracket to the system board.
- Connect the speaker cable and the audio board cable to their connectors on the system board.
- Connect the power adapter port cable to its connector on the system board.
- For 2-in-1 systems, connect the touch cable to the connector on the system board.
- Connect the display cable to its connector on the system board. Close the latch to secure the cable.
- Replace the display cable bracket on the system board. Replace the singe screw (M2x3) to secure the display bracket to the system board.
- Connect the two antenna cables to the WLAN module on the system board.
- Replace the WLAN antenna cable bracket on the system board.
- Replace the singe screw (M2x3) to secure the WLAN antenna cable bracket to the system board.
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