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Microprocessor Airflow Shroud

Dell Precision™ Workstations 450 and 650 User's Guide

  Removing the Microprocessor Airflow Shroud

  Installing the Microprocessor Airflow Shroud


CAUTION: Before you perform this procedure, follow the safety instructions in the System 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 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.
  1. Disconnect any telephone or telecommunication lines from the computer.

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

  3. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the 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.
  1. Open the computer cover.

Removing the Microprocessor Airflow Shroud

CAUTION: Before you perform this procedure, follow the safety instructions in the System Information Guide.
NOTICE: To avoid damaging the fan power cables, do not slide the shroud too quickly.
  1. Press the shroud release lever towards the front of the computer.

  2. Lift the shroud up to disengage the anchors.

  3. Once the shroud has been disengaged from the anchors, unplug the fan cables from their connectors on the system board.

1

shroud release lever

2

anchor tabs

3

anchor slots

Installing the Microprocessor Airflow Shroud

  1. Attach both fan power cables to the connectors on the system board.

  2. Align the anchor tabs with the securing slots.

  3. Gently press the shroud until the anchor tabs snap securely into place.

  4. Close the computer cover.

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
  1. Connect your computer and devices to electrical outlets, and turn them on.

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