Removing and Installing Parts: Dell Dimension 9200C Service Manualfile:///T|/htdocs/systems/dim9200C/en/SM_EN/parts.htm[10/31/2012 8:07:53 AM]Installing the Fan AssemblyWhen reinstalling the fan, ensure that you do not pinch any wires that run near the fan.NOTICE: Ensure that the two fan tabs are fully inserted into the keyhole slots in the chassis so that the fan can slideback fully into position. Ensure that the fan release lever is seated into its slot in the chassis.Follow the procedures in Removing the Fan Assembly in reverse order.ProcessorRemoving the ProcessorCAUTION: Do not perform the following steps unless you are familiar with hardware removal andreplacement. Performing these steps incorrectly could damage your system board. For technicalassistance, see "Contacting Dell" in your Owner's Manual.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in theProduct Information Guide.1. Follow the procedures in Before You Begin.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet beforeopening the cover.CAUTION: The heat sink assembly can get very hot during normal operation. Be sure that the assembly hashad sufficient time to cool before you touch it.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 todissipate any static electricity that could harm internal components.2. Remove the hard drive (see Removing a Hard Drive).NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat sink. If you are not installinga processor upgrade kit from Dell, reuse the original heat sink when you install your new processor.3. Remove the heat sink assembly (see Removing the Heat Sink Assembly).4. Place your finger upon the hook end of the release lever, then push down and out to release it from the tab thatsecures it.