Dell Vostro 15 3558 - Manual (Page 23)

6. Perform the following steps as shown in the illustration:
a. Remove the screw that secures the system board to the chassis [1].
b. Lift and remove the system board from the chassis [2].
Installing the System Board
1. Install the system board into the chassis.
2. Tighten the screws to secure the system board to the computer.
3. Connect the power connector to the system board.
4. Connect the display assembly cable to the system board.
5. Install:
a. base cover
b. keyboard
c. memory module
d. hard drive
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