Dell GX270 manual Removing the I/O Panel

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I/O Panel

Dell™ OptiPlex™ GX270 Service Manual

Removing the I/O Panel

Replacing the I/O Panel

CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety Instructions."

NOTICE: Before you disconnect a device from the computer or remove a component from the system board, verify that the standby power light on the system board has turned off. To locate the light, see "System Board."

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 press the power button to ground the system board.

5.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.

6.Open the computer 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.

Removing the I/O Panel

1.On the small form-factor computer, to access the screw that holds the I/O panel to the computer, remove the hard drive.

2.On the small desktop computer, disconnect the hard-drive data cable.

3.Disconnect all cables that are connected to the I/O panel.

Note the routing of the control panel cable as you remove it from the computer so that you can replace it correctly.

4.From inside the computer cover, remove the mounting screw that secures the I/O panel to the computer.

5.Remove the I/O panel from the computer.

Small Form-Factor Computer

1

internal speaker cable

4

mounting screw

 

 

 

 

 

 

 

 

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Contents June 2004 Rev. A01 Removing the Chassis Intrusion Switch Chassis Intrusion SwitchResetting the Chassis Intrusion Detector Replacing the Chassis Intrusion SwitchBack to Contents Removing the Control Panel Control PanelSmall Form-Factor Computer Small Mini-Tower Computer Small Desktop ComputerReplacing the Control Panel Small Desktop Computer Small Mini-Tower Computer Small Form-Factor and Small Desktop Computers Opening the Computer CoverSmall Mini-Tower Computer Closing the Computer Cover Removing the I/O Panel PanelReplacing the I/O Panel Removing the Power Supply Power SupplySmall Desktop Computer Replacing the Power Supply Small Form-Factor System Board System BoardSmall Mini-Tower System Board Resetting Cmos Settings Jumper SettingsRemoving the System Board Replacing the System Board Back to Contents When Working Inside Your Computer When Using Your ComputerGeneral Protecting Against Electrostatic Discharge Battery Disposal