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Power-Supply Unit 55
Power-Supply Unit
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. For additional safety best practices information, see the Regulatory
Compliance Homepage at dell.com/regulatory_compliance.
Removing the Power-Supply Unit
Prerequisites
1
Remove the computer cover. See "Removing the Computer Cover" on
page 17.
2
Remove the fan shroud. See "Removing the Fan Shroud" on page 19.
3
Remove the drive cage. See "Removing the Drive Cage" on page 37.
4
Remove the memory module(s). See "Removing Memory Module(s)" on
page 21. Record which memory module is removed from each DIMM slot
so that the memory modules can be installed in the same slot after the
power-supply unit is replaced.
5
Remove the Mini-Card, if applicable. See "Removing the Mini-Card" on
page 29.
6
Remove any PCI-Express cards, if applicable. See "Removing the PCI-
Express Cards" on page 25.
7
Remove the processor fan and heat-sink assembly. See "Removing the
Processor Fan and Heat-Sink Assembly" on page 59.
8
Remove the processor. See "Removing the Processor" on page 63.
9
Remove the system board. See "Removing the System Board" on page 69.
book.book Page 55 Thursday, April 5, 2012 5:38 PM