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Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any
proprietary interest in trademarks and trade names other than its own.
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Trademarks used in this text: Dell, the DELL logo, and OptiPlex are trademarks of Dell Inc. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own.
Back to Contents Page Chassis Intrusion Switch Dell™ OptiPlex™ GX270 Service Manual Removing the Chassis Intrusion Switch Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety...
Small Mini-Tower Computer Replacing the Chassis Intrusion Switch 1. Slide the chassis intrusion switch into its slot and reconnect the cable to the connector on the control panel. 2. Close the computer cover. 3. Attach the computer stand, if it is used. ...
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NOTE: The default is Enabled-Silent. NOTE: If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intrusion detector. 3. Press to restart the computer and implement your changes. Back to Contents Page ...
Back to Contents Page Control Panel Dell™ OptiPlex™ GX270 Service Manual Removing the Control Panel Replacing the Control 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.
1 metal control-panel shield 2 screw 2. Remove the metal control-panel shield. 3. Remove the screw that holds the control panel to the computer, and remove the control panel. Small Desktop Computer 1. Remove the front I/O panel (see Panel).
1 computer cover tab (remove the CD drive to access this tab) 4 bottom panel 2 top-panel tabs 5 computer cover screw 3 top panel 6 computer cover tabs (2) 2. To prepare the computer cover for removal, release the three computer cover tabs (one tab is located by the CD drive and two tabs are located by the I/O panel).
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2. Replace the computer cover. Ensure that the two metal hooks and tabs are securely in position. To help replace the computer cover, remove the accent door and front mask from the computer cover: a. Remove the front mask by releasing the tabs on the inside of the computer cover. b.
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Follow the steps in the "Removing the Control Panel" procedure in the reverse order, ensuring that all tabs are secure. Small Mini-Tower Computer Follow the steps in the "Removing the Control Panel" procedure in the reverse order, ensuring that all tabs are secure. Back to Contents Page ...
Back to Contents Page Opening the Computer Cover Dell™ OptiPlex™ GX270 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety Instructions." 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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1 security cable slot 2 padlock ring 3 release buttons (one on each side) Small Mini-Tower Computer 1. Lay the computer on its side as shown in the illustration. 2. Open the cover: a. Facing the back of the computer, press the release button on the right side of the computer with one hand while pulling up on the top of the cover with the other hand.
Back to Contents Page Closing the Computer Cover Dell™ OptiPlex™ GX270 Service Manual CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety Instructions." 1. Ensure that all cables are connected, and fold cables out of the way.
Back to Contents Page 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.
Back to Contents Page Power Supply Dell™ OptiPlex™ GX270 Service Manual Removing the Power Supply Replacing the Power Supply 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.
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1 release button 2 AC power connector 3. Slide the power supply toward the front of the computer approximately 1 inch. 4. Lift the power supply up and out of the computer. Small Desktop Computer 1. Disconnect the DC power cables from the system board and the drives. ...
4. Slide the power supply toward the front of the computer approximately 1 inch. 5. Lift the power supply up and out of the computer. Replacing the Power Supply 1. Slide the power supply into place. 2. On the small mini-tower computer, replace the two screws that secure the power supply to the back of the computer frame. 3.
Back to Contents Page System Board Dell™ OptiPlex™ GX270 Service Manual Small Form-Factor System Board floppy-drive connector (DSKT) 11 CD drive audio cable connector (CD_IN) CD/DVD drive connector (IDE2)
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floppy-drive connector (DSKT) 11 CD drive audio cable connector (CD_IN) CD/DVD drive connector (IDE2) 12 front-panel audio cable connector (FRONTAUDIO) battery socket (BATTERY) 13 power connector (12VPOWER) front-panel connector (FRONTPANEL) 14 serial port connector (SER2) for optional serial port cards IDE hard-drive connector (IDE1) 15 microprocessor and heat sink connector (CPU) serial ATA hard-drive connector (SATA1) 16 microprocessor fan connector (FAN)
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. ...
10. Remove the system board: a. If your system board is attached to a metal tray, the board and the tray are connected and are removed as one piece. Pull up on the tab and slide the system board assembly toward the front of the computer, and then lift the board up and away. b.
CAUTION: Do not attempt to service the computer yourself, except as explained in your online Dell™ documentation or in instructions otherwise provided to you by Dell. Always follow installation and service instructions closely. NOTICE: To help avoid possible damage to the system board, wait 5 seconds after turning off the computer before removing a component from the system board or disconnecting a device from the computer.
2. Turn off your computer and any devices connected to the computer. 3. Ground yourself by touching an unpainted metal surface on the chassis before touching anything inside your computer. While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components.