Dell Inspiron 17 (5749, Early 2015) - Manual (Page 68)

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 system setup after you replace the
system board.
Procedure
1 Replace the heat-sink assembly .
2 Align the screw holes on the system-board assembly with the screw
holes on the computer base.
3 Replace the screws that secure the system-board assembly to the
computer base.
4 Connect the power-adapter port cable and speaker cable to the system
board.
5 Adhere the display cable to the fan.
6 Slide the display cable and I/O-board cable into the respective
connectors and press down the latches to secure the cables.
7 Adhere the tape that secures the display cable to the system board.
8 Slide the antenna cables through the slot on the computer base.
9 Close the display and turn the computer over.
10 Route the antenna cables on the computer base.
Post-requisites
1 Replace the optical-drive connector board .
2 Replace the battery-connector board .
3 Replace the palm rest .
4 Replace the keyboard .
5 Replace the wireless card .
6 Follow the procedure from step 4 to step 5 in replacing the optical drive .
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