Dell Inspiron 3250, Service Manual

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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 www.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 back of the
chassis and gently place the system board into the chassis.
2 Align the screw holes on the system board with the screw holes on the
chassis.
3 Replace the screws that secure the system board to the chassis.
4 Close the front panel and align the screw hole on the front panel to the
screw hole on the chassis.
5 Replace the screw that secures the front panel to the chassis.
6 Connect the power-button cable, hard-drive data cable, optical-drive
data cable, and hard-drive and optical-drive power cable to the system
board.
Post-requisites
1 Replace the graphics card .
2 Replace the wireless card .
3 Replace the memory module .
4 Replace the drive cage .
5 Replace the heat-sink assembly .
6 Replace the front bezel .
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