Dell Vostro 3420 - Discrete system board connectors; Removing the discrete system board

Discrete system board connectors
The following image shows the different connectors on the discrete system board.
1. I/O board FFC connector
2. eDP connector
3. DC-in port connector
4. Memory module connectors
5. Keyboard FFC connector
6. Backlit FFC connector
7. Battery connector
8. Touchpad FFC connector
9. Wireless card connector
10. Fan connector
11. Speaker cable connector
12. SSD connector
Removing the discrete system board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
3. Remove the battery.
4. Remove the memory modules.
5. Remove the M.2 2230 solid-state drive or M.2 2280 solid-state drive, whichever applicable.
6. Remove the wireless card.
7. Remove the fan.
8. Remove the heat sink - UMA or discrete, whichever applicable.
9. Remove the display assembly .
About this task
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
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Removing and installing components