Microprocessor 16318 Close the computer cover.NOTICE: To connect a network cable, first plug the cable into the network wall jack and thenplug it into the computer.19 Connect your computer and devices to electrical outlets, and turn them on.Removing the MicroprocessorNOTE: It is recommended that only a technically knowledgeable person perform this procedure.CAUTION: The processor can get very hot during normal operation. Ensure thatthe processor has had sufficient time to cool before you touch it.CAUTION: Before you perform this procedure, follow the safety instructions intheSystem Information Guide.1 Shut down the computer through the Start menu.2 Ensure that your computer and attached devices are turned off. If your computer andattached 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 thenunplug 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 thenpress the power button to ground the system board.5 If you have installed a padlock through the padlock ring on the back panel, remove thepadlock.CAUTION: To guard against electrical shock, always unplug your computer fromthe electrical outlet before opening the cover.NOTICE: Before touching anything inside your computer, ground yourself by touching anunpainted 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 harminternal components.6 Open the computer cover.7 Remove the microprocessor airflow shroud (for the Dell Precision 650 computer, see"Microprocessor Airflow Shroud" or for the Dell Precision 450 computer, see"Microprocessor Airflow Shroud").
