Dell Studio XPS 435T / 9000 (Early 2009) - Manual (Page 26)

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Replacing the Power Supply
Dell Studio XPS™ 435T/9000 Service Manual
1. Follow the procedures in Before You Begin .
2. Remove the computer cover (see Replacing the Computer Cover ).
3. Follow the DC power cables that stem from the power supply and disconnect each connected power cable.
4. Remove the four screws that secure the power supply to the back of the computer chassis.
5. Push the tab down and slide the power supply towards the front of the computer and lift it out.
6. Slide the replacement power supply towards the back of the computer.
7. Replace the four screws that secure the power supply to the back of the computer chassis.
WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
WARNING: To guard against likelihood of electric shock, laceration by moving fan blades or other unexpected injuries, always unplug your
computer from the electrical outlet before removing the cover.
CAUTION: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps
incorrectly could damage your computer. To call for technical assistance, see the Setup Guide.
CAUTION: Note the location and ID of each power connector before disconnecting the power supply cables.
NOTE: Note the routing of the DC power cables in the computer chassis as you remove them from the system board and drives. You must route
these cables properly when you replace them to prevent them from being pinched or crimped.
1 screws (4) 2 tab
3 power supply
WARNING: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the system grounding.
CAUTION: The cables must be properly routed to prevent the cables from being damaged.