Dell Inspiron 3521 Owners Manual - Page 45

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 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9. 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. For more information, see "Entering the Service Tag in system setup" on page 49. 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 11. 2 Follow the instructions from step 1 to step 2 in "Removing the Memory Module(s)" on page 15. 3 Remove the hard-drive assembly. See "Removing the Hard-Drive Assembly" on page 23. 4 Remove the optical-drive assembly. See "Removing the Optical-Drive Assembly" on page 19. 5 Remove the keyboard. See "Removing the Keyboard" on page 27. 6 Remove the palm-rest. See "Removing the Palm-Rest" on page 31. 7 Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on page 37. Removing the System Board | 45

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Removing the System Board
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45
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 7. After working inside your computer, follow the instructions in "After
Working Inside Your Computer" on page 9. 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. For more
information, see "Entering the Service Tag in system setup" on page 49.
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 11.
2
Follow the instructions from step 1 to step 2 in "Removing the Memory Module(s)"
on page 15.
3
Remove the hard-drive assembly. See "Removing the Hard-Drive Assembly" on
page 23.
4
Remove the optical-drive assembly. See "Removing the Optical-Drive Assembly" on
page 19.
5
Remove the keyboard. See "Removing the Keyboard" on page 27.
6
Remove the palm-rest. See "Removing the Palm-Rest" on page 31.
7
Remove the wireless Mini-Card. See "Removing the Wireless Mini-Card" on
page 37.