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Before You Begin: Dell Dimension 9200C Service Manual

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Before You Begin

Dell™ Dimension™ 9200C Service Manual

  Getting Started

  Recommended Tools

  Turning Off Your Computer

  Before Working Inside Your Computer



Getting Started

This manual provides procedures for removing and replacing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:


Recommended Tools

The procedures in this document may require the following tools:

  • Small flat-blade screwdriver

  • Phillips #0, #1, or #2 screwdriver

  • Flash BIOS update program (download from support.dell.com)


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:

    1. Save and close any open files, exit any open programs, click the Start button, and then click Shutdown.

    1. In the Shut Down Windows window, select Shut Down.

The computer turns off after the operating system shutdown process finishes.

  1. 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 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: Only a certified service technician should perform repairs on your computer. 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 strain-relief loop, 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.
  1. Follow the steps in Turning Off Your Computer.

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network port or device.
  1. Disconnect any telephone or network cables from the computer.

  2. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
  1. Remove the computer cover (see Removing the Computer Cover).

NOTICE: 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 any static electricity that could harm internal components.

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