User manual Dell D820

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Back to Contents Page  
Before You Begin  
Dell™ꢀLatitude™ꢀD820ꢀꢀServiceꢀManual  
Recommended Tools  
Turning Off Your Computer  
Before Working Inside Your Computer  
Computer Orientation  
This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the  
following conditions exist:  
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You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer.  
You have follow the safety information in the Product Information Guide.  
A component can be replaced by performing the removal procedure in reverse order.  
Recommended Tools  
The procedures in this document may require the following tools:  
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Small flat-blade screwdriver  
Phillips screwdriver  
Small plastic scribe  
Hex nut driver  
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.  
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Shut down the operating system:  
a. Save and close any open files, exit any open programs, click Start® Shut Down® Shut down® OK.  
The computer turns off after the operating system shutdown process finishes.  
Ensure that the computer and any attached devices are turned off. If your computer and attached devices do not automatically turn off when you shut  
down your operating system, press and hold the power button for 4 seconds.  
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.  
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.  
CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal  
mounting bracket. Hold a component such as a processor by its edges, not by its pins.  
NOTICE: Damage due to servicing that is not authorized by Dell is not covered by your warranty.  
NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have a connector with locking tabs; if  
you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly  
aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.  
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.  
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Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.  
Turn off your computer (see Turning Off Your Computer).  
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.  
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Disconnect any telephone, network, and USB cables from the computer.  

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