Installing the system board
- Align and place the system board pre-installed with DDR ESD bracket in the palmrest assembly [1]
- Replace the four (M2x3) screws on the system board and single (M2x2.5) screw on the DDR ESD bracket securing it to the palmrest assembly [2].
![system board Install six screws](https://dl.dell.com/content/guides/public/Html/lat7300_service_manual/images/GUID-F01BE165-E801-4D13-A1A5-C502F9B6B766-low.jpg)
NOTE: For models shipped with a fingerprint reader or WWAN antennas, there are four (M2x3) screws securing the system board to the computer.
- Place the USB Type-C bracket [1] on the system board and secure it using two (M2x5) screws [2] to the system board.
- Connect the touchpad cable to the connector on the system board [1].
- Adhere the coin cell to the palmrest assembly [2].
- Connect the display cable to the camera-touchscreen [1] and the EDP cable connectors [2] to the system board.
![connect display cable](https://dl.dell.com/content/guides/public/Html/lat7300_service_manual/images/GUID-E9C0E510-8B92-499C-AE58-5DC6DCF0D08B-low.jpg)
connect display cable
- Install the display cable bracket [1] on the EDP connector of the system board and secure it using a single (M2x3) screw [2].
- Install the rubber routing channel on the coin cell.
- Connect the power button (with finger print reader) cable to the system board [1].
- Connect the Darwin WWAN antenna cables [2] to the the system board.
- Route the speaker cable along the tab [1] beside the LED daughterboard and connect it to the system board [2].
- Route the LED daughterboard FFC cable [3] over the rubber routing channel on the coin cell and connect it to the system board [4].
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