Dell Inspiron 3455 AIO Inspiron 24 3455 Service Manual - Page 54

Replacing the system board, Procedure

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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 Slide the ports on the system board into the slots on the displayassembly base and place the system board on the display-assembly base. 2 Align the screw holes on the system board with the screw holes on the display-assembly base. 3 Replace the screws that secure the system board to the display-assembly base. 4 Connect the display-backlight cable to its connector on the system board. 5 Slide the control-buttons board and display cables into its connectors on the system board and press down on the latches to secure the cables. 6 Connect the speaker, touch-control board, hard-drive, optical-drive, hard-drive and optical-drive power, fan, and microphone and camera cables to its connectors on the system board. 54

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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
Slide the ports on the system board into the slots on the display-
assembly base and place the system board on the display-assembly base.
2
Align the screw holes on the system board with the screw holes on the
display-assembly base.
3
Replace the screws that secure the system board to the display-assembly
base.
4
Connect the display-backlight cable to its connector on the system
board.
5
Slide the control-buttons board and display cables into its connectors on
the system board and press down on the latches to secure the cables.
6
Connect the speaker, touch-control board, hard-drive, optical-drive,
hard-drive and optical-drive power, fan, and microphone and camera
cables to its connectors on the system board.
54