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Safety Instructions  

Use the following safety guidelines to protect your computer from potential damage and  

ensure your personal safety.  

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  

dell.com/regulatory_compliance.  

WARNING: Disconnect all power sources before opening the computer cover or  

panels. After you finish working inside the computer, replace all covers, panels,  

and screws before connecting to the power source.  

CAUTION: To avoid damaging the computer, ensure that the work surface is flat  

and clean.  

CAUTION: To avoid damaging the components and cards, handle them by their  

edges and avoid touching pins and contacts.  

CAUTION: Only a certified service technician is authorized to remove the  

computer cover and access any of the components inside the computer. See the  

safety instructions for complete information about safety precautions, working  

inside your computer, and protecting against electrostatic discharge.  

CAUTION: Before touching anything inside your computer, ground yourself by  

touching an unpainted metal surface, such as the metal at the back of the  

computer. While you work, periodically touch an unpainted metal surface to  

dissipate static electricity, which could harm internal components.  

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab,  

not on the cable itself. Some cables have connectors with locking tabs or  

thumb-screws that you must disengage before disconnecting the cable.  

When disconnecting cables, keep them evenly aligned to avoid bending any  

connector pins. When connecting cables, ensure that the connectors and ports  

are correctly oriented and aligned.  

CAUTION: To disconnect a network cable, first unplug the cable from your  

computer and then unplug the cable from the network device.  

CAUTION: Press and eject any installed card from the media-card reader.  

Recommended Tools  

The procedures in this document may require the following tools:  

•

•

Phillips screwdriver  

Plastic scribe  

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Before You Begin  

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