Dell Latitude D631 User's Guide - Page 113

14 Adding and Replacing Parts Before You Begin This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: • You have performed the steps in "Turning Off Your Computer" on page 113 and "Before Working Inside Your Computer" on page 113. • You have read the safety information in your Dell™ Product Information Guide. • A component can be replaced or-if purchased separately-installed by performing the removal procedure in reverse order. Recommended Tools The procedures in this document may require the following tools: • Small flat-blade screwdriver • Small Phillips screwdriver • Small plastic scribe • Flash BIOS update program CD Turning Off Your Computer NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer. 1 Shut down the operating system: a Save and close any open files, exit any open programs, click Start→ Shut Down→ Shut down→ ΟΚ. The computer turns off after the operating system shutdown process finishes. 2 Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold the power button for about 4 seconds to turn them off. Before Working Inside Your Computer Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety. Adding and Replacing Parts 113