Dell Dimension 8300 Manual do Utilizador descarregar pdf (Página 31)

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Power Supply

Dell™Dimension™8300SeriesServiceManual

Removing the Power Supply

Replacing the Power Supply

Removing the Power Supply

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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.

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3. Disconnect any telephone or telecommunication lines from the computer.

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

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5. Open the computer cover.

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6. Disconnect the DC power cables from the system board and the drives.

Note the routing of the DC power cables underneath the tabs in the computer frame as you remove them from the system board and drives. You must

route these cables properly when you replace them to prevent their being pinched or crimped.

7. Remove the two screws that attach the power supply to the back of the computer frame.

8. Press the release button located on the floor of the computer frame.

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9. Slide the power supply toward the front of the computer approximately 1 inch.

10. Lift the power supply up and out of the computer.

Replacing the Power Supply

1. Slide the power supply into place.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in your Owner's Manual.

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.

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.

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Dell Dimension 8300 Manual do Utilizador Página 31