Dell Inspiron 14 (5448, Early 2015) - Manual (Page 66)

Replacing the System Board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before Working Inside Your Computer . After working inside your
computer, follow the instructions in After Working Inside Your
Computer . For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You
must enter the Service Tag in the BIOS setup program after you replace
the system board.
NOTE: Replacing the system board removes any changes you have
made to the BIOS using the BIOS setup program. You must make the
desired changes again after you replace the system board.
Procedure
1 Connect the power-adapter port cable to the system board.
2 Turn the system board over.
3 Slide the ports on the system board into the slots on the palm rest and
place the system board on the palm rest.
4 Align the screw holes on the system board with the screw holes on the
palm rest.
5 Replace the screws that secure the system board to the palm rest.
6 Connect the hard-drive cable and speaker cable to the system board.
7
Turn the computer over and open the display.
8 Slide the status-light board cable and touchpad cable into the respective
connectors and press down on the latches to secure the cables.
Post-requisites
1 Replace the heat sink .
2 Replace the wireless card .
3 Replace the memory module(s) .
4 Replace the base frame .
5 Replace the keyboard .
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