Dell Inspiron Small Desktop 3646 Inspiron 3646 Owners Manual - Page 48

Removing the System Board, Prerequisites, Procedure

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Removing 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. NOTE: Replacing the system board removes any changes you have made to the BIOS using System Setup. You must make the desired changes again after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect them correctly after you replace the system board. Prerequisites 1 Remove the computer cover. 2 Remove the front bezel. 3 Follow the procedure from step 1 to step 5 in "Removing the drive cage". 4 Remove the memory module. 5 Remove the wireless card. 6 Remove the fan. Procedure 1 Disconnect the hard-drive data cable, optical-drive data cable, powerbutton cable, hard-drive and optical-drive power cable, front-panel USB cable, media-card reader cable, and front-panel audio cable from the system board. For more information on the location of connectors, see "System-Board Components". 2 Make note of the cable routing and remove the cables from the routing guides. 3 Remove the screws that secure the system board to the chassis. 48

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Removing 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.
NOTE:
Replacing the system board removes any changes you have
made to the BIOS using System Setup. You must make the desired
changes again after you replace the system board.
NOTE:
Before disconnecting the cables from the system board, note the
location of the connectors so that you can reconnect them correctly
after you replace the system board.
Prerequisites
1
Remove the
computer cover
.
2
Remove the
front bezel
.
3
Follow the procedure from step 1 to step 5 in “Removing the
drive cage
”.
4
Remove the
memory module
.
5
Remove the
wireless card
.
6
Remove the
fan
.
Procedure
1
Disconnect the hard-drive data cable, optical-drive data cable, power-
button cable, hard-drive and optical-drive power cable, front-panel USB
cable, media-card reader cable, and front-panel audio cable from the
system board.
For more information on the location of connectors, see
“System-Board
Components”
.
2
Make note of the cable routing and remove the cables from the routing
guides.
3
Remove the screws that secure the system board to the chassis.
48