Dell OptiPlex 5055 Owner's Manual

Contents

Dell OptiPlex 5055 Owner's Manual Manual pdf 6 page image

Working on your computerSafety instructionsUse the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwisenoted, each procedure included in this document assumes that the following conditions exist:• You have read the safety information that shipped with your computer.• A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.WARNING: Disconnect all power sources before opening the computer cover or panels. After you finish working inside thecomputer, replace all covers, panels, and screws before connecting to the power source.WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additionalsafety best practices information, see the Regulatory Compliance Homepage at www.Dell.com/regulatory_complianceCAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simplerepairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damagedue to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that camewith the product.CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching anunpainted metal surface at the same time as touching a connector on the back of the computer.CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by itsedges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables haveconnectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect thecable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect acable, ensure that both connectors are correctly oriented and aligned.NOTE: The color of your computer and certain components may appear differently than shown in this document.CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the sidecover is removed.CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the sidecover is removed.CAUTION: System will shut down if side covers are removed while the system is running. The system will not power on if the sidecover is removed.Turning off your computerTurning off your computer — Windows 10CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer orremove the side cover.1 Click or tap .2 Click or tap and then click or tap Shut down.16 Working on your computer