Dell XPS 8500 (Early 2012) - Manual (Page 115)

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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 13. For additional safety best practices information, see the Regulatory
Compliance Homepage at dell.com/regulatory_compliance.
Prerequisites
1 Remove the computer cover. See "Removing the Computer Cover" on
page 23.
2 Remove the Mini-Card, if applicable. See "Removing the Mini-Card" on
page 50.
3 Remove the memory module(s). See "Removing Memory Module(s)" on
page 27.
4 Remove the any PCI-Express x1 card(s), if applicable. See "Removing the
PCI-Express x1 Card(s)" on page 44.
5 Remove the graphics card. See "Removing the Graphics Card" on page 37.
6 Remove the processor fan and heat-sink assembly. See "Removing the
Processor Fan and Heat-Sink Assembly" on page 97.
7 Remove the processor. See "Removing the Processor" on page 102.
Removing the System Board
NOTE: Your computer’s service tag is stored in the system board. You must enter
the service tag in the BIOS 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.
1 Disconnect all the cables connected to the system board.
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.
System-Board 115