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Dell Inspiron 5721 Owner's Manual: Removing The System Board; Prerequisites

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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 You Begin" on page 9.
After working inside your computer, follow the instructions in "After Working
Inside Your Computer" on page 11. For additional safety best practices information,
see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.
NOTE: Your computer's Service Tag is stored in the system board. You must enter
the Service Tag in system setup 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 battery. See "Removing the Battery" on page 12.
2
Follow the instructions from step 1 to step 2 in "Removing the Optical Drive" on
page 14.
3
Remove the base cover. See "Removing the Base Cover" on page 20.
4
Remove the memory module(s). See "Removing the Memory Module(s)" on
page 22.
5
Remove the coin-cell battery. See "Removing the Coin-Cell Battery" on page 28.
6
Follow the instructions from step 1 to step 3 in "Removing the Hard Drive" on
page 24.
7
Remove the keyboard. See "Removing the Keyboard" on page 17.
8
Remove the palm-rest. See "Removing the Palm-Rest" on page 30.
9
Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on
page 34.
Removing the System Board
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Inspiron 17 3721, Inspiron 3721, Inspiron 17r

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