Dell Inspiron 14 (3443, Early 2015) - Manual (Page 65)

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 Align the screw holes on the system board with the screw holes on the
computer base.
2 Replace the screws that secure the system board to the computer base.
3 Connect the power-adapter-port cable and speaker cable to the
connectors on the system board.
4 Slide the I/O-board cable into the connector on the system board and
press down on the latch to secure the cable.
5 Adhere the display cable to the fan.
6 Slide the display cable into the connector on the system board and press
down on the latch to secure the cable.
7 Adhere the tape that secures the display cable to the system board.
Post-requisites
1 Replace the palm rest .
2 Replace the hard drive .
3 Replace the wireless card .
4 Replace the memory module(s) .
5 Replace the base cover .
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