Before You Begin: Dell XPS 730/730X Service Manualfile:///C|/Users/santhosh_v/Desktop/7/SM_en/before_y.htm[9/5/2013 11:46:27 AM]Back to Contents PageBefore You BeginDell™ XPS™ 730/730X Service ManualTechnical SpecificationsRecommended ToolsTurning Off Your ComputerSafety InstructionsThis chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, eachprocedure assumes that the following conditions exist:You have performed the steps in Turning Off Your Computer and Safety Instructions.You have read the safety information that ships with your computer.A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverseorder.Technical SpecificationsFor information on technical specifications of your computer, see the QuickReference Guide that shipped with your computer or see the Dell Supportwebsite at support.dell.com.Recommended ToolsThe procedures in this document may require the following tools:Small Phillips screwdriverSmall flat-blade screwdriverTurning Off Your ComputerCAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn offyour computer.1. Shut down the operating system:2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did notautomatically turn off when you shut down your operating system, press and hold the power button for about 4seconds to turn them off.Safety InstructionsUse the following safety guidelines to help protect your computer from potential damage and to help to ensure your own