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Before You Begin
Dell™ Dimension™ 2400 Series
Recommended Tools
Precautionary Measures
Protecting Against Electrostatic Discharge
This section provides procedures for removing and replacing the components. Unless otherwise noted, each procedure assumes that the following conditions
exist:
You have performed the steps in
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You have read the safety information in your Owner's Manual or Product Information Guide.
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You have opened the computer cover.
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Recommended Tools
Your computer is primarily a tool-less one, but certain procedures (such as removing the heat-sink blower or the control panel) require the use of one or more
of the following tools:
Small flat-blade screwdriver
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#1 and #2 Phillips-head screwdriver
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An 8-inch, #2 Phillips-head screwdriver
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Precautionary Measures
Use the following safety guidelines to help protect your computer from potential damage and to ensure your own personal safety.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual or Product Information
Guide.
CAUTION:
Do not attempt to service the computer yourself, except as explained in your online Dell™ documentation or in instructions otherwise
provided to you by Dell. Always follow installation and service instructions closely.
NOTICE:
To help avoid possible damage to the system board, wait 5 seconds (or wait until the standby light is extinguished) after turning off the
computer and unplugging the power cable before removing a component from the system board or disconnecting a device from the computer.
Before you start to work on the computer, perform the following steps in the sequence listed:
1.
Shut down the computer
through the Start menu.
2. Ensure that your computer and attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut
down your computer, turn them off now.
NOTICE:
To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.
3. Disconnect any telephone or telecommunication lines from the computer.
4. Disconnect your computer and all attached devices from electrical outlets, and then press the power button to ground the system board.
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.
In addition, take note of these safety guidelines when appropriate:
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
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you are disconnecting this type of cable, press in on the locking tabs before disconnecting the cable. As you pull connectors apart, keep them evenly
"Precautionary
Measures."