Identifier GUID-DD3AE169-A824-4F1D-832E-585B176F6FAFVersion 1Status ReleasedWorking inside your computerIdentifier GUID-44EFC870-AEDE-4D27-9DCF-470E2AD8F8F9Version 2Status ReleasedBefore working inside your computerAbout this taskNOTE: The images in this document may differ from your computer depending on the configuration you ordered.Steps1. Save and close all open files and exit all open applications.2. Shut down your computer. Click Start > Power > Shut down.NOTE: If you are using a different operating system, see the documentation of your operating system for shut-downinstructions.3. Disconnect your computer and all attached devices from their electrical outlets.4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable fromthe network device.5. Remove any media card and optical disc from your computer, if applicable.Identifier GUID-ED275111-48F0-414D-80B1-1A6A56A6F7E4Version 1Status ReleasedSafety 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 you have read the safety information that shipped with your computer.NOTE: Before working inside your computer, read the safety information that is shipped with your computer. For moresafety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.NOTE: Disconnect your computer from all power sources before opening the computer cover or panels. After you finishworking inside the computer, replace all covers, panels, and screws before connecting your computer to an electricaloutlet.CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry and clean.CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the pins andthe contacts.CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technicalassistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safetyinstructions that is shipped with the product or at www.dell.com/regulatory_compliance.1Working inside your computer 5