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Dell GX270 manual

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Table of contents for the manual

  • Page 1

    Dell™OptiPlex™GX270ServiceManual  Safety Instructions Opening the Computer Cover Chassis Intrusion Switch Control Panel I/O Panel Power Supply System Board Closing the Computer Cover To remove or replace all other GX270 components, see the Dell OptiPlex GX270 Systems User's Guide . Information in this document is subject to [...]

  • Page 2

    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   1.  Shut down the computer through the Start menu. 2.  Ensure that your computer and attached devi[...]

  • Page 3

    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.  4.  Connect your computer and devices to electrical outlets, and turn t[...]

  • Page 4

     3.  Press <Alt><b> to restart the computer and implement your changes. Back to Contents Page  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.[...]

  • Page 5

    Back to Contents Page Control Panel Dell™OptiPlex™GX270ServiceManual  Removing the Control Panel  Replacing the Control Panel   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 automatic[...]

  • Page 6

     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 I/O Panel ).  2.  Using an 8 - inch #2 Phillips screwdriver, remove the screw that secures the control panel to the computer, [...]

  • Page 7

     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).  3.  If necessary, remove the computer cover screw. 4.  Close the computer and remove the computer cover. 5.  Remove the screw that secures the control panel to the c[...]

  • Page 8

    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.  Remove the accent door by pressing the middle of t[...]

  • Page 9

    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 [...]

  • Page 10

    Back to Contents Page Opening the Computer Cover Dell™OptiPlex™GX270ServiceManual  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 n[...]

  • Page 11

      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. b.  Press the release button on the left side o[...]

  • Page 12

    Back to Contents Page Closing the Computer Cover Dell™OptiPlex™GX270ServiceManual  1.  Ensure that all cables are connected, and fold cables out of the way.  Gently pull the power cables toward you so that they do not get caught underneath the drives. 2.  Ensure that no tools or extra parts are left inside the comp[...]

  • Page 13

    Back to Contents Page I/O Panel Dell™OptiPlex™GX270ServiceManual  Removing the I/O Panel   Replacing the I/O Panel 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[...]

  • Page 14

    Small Desktop Computer   Small Mini - Tower Computer   Replacing the I/O Panel  To replace the I/O panel, follow the removal procedures in the reverse order. Back to Contents Page  2  chassis - intrusion switch cable 5  front audio cable 3  control panel cable 6  I/O cable 1  chassis - intrusion switch cable 4  c[...]

  • Page 15

    Back to Contents Page Power Supply Dell™OptiPlex™GX270ServiceManual  Removing the Power Supply   Replacing the Power Supply  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[...]

  • Page 16

    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.  Note the routing of the DC power cables underneath the tabs in the computer frame as you remove them [...]

  • Page 17

    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.  Re[...]

  • Page 18

    Back to Contents Page System Board Dell™OptiPlex™GX270ServiceManual  Small Form - Factor System Board                   Small Desktop System Board  1  floppy - drive connector (DSKT) 11  CD drive audio cable connector (C[...]

  • Page 19

     Small Mini - Tower System Board  1  floppy - drive connector (DSKT) 11  CD drive audio cable connector (CD_IN) 2  CD/DVD drive connector (IDE2) 12  front - panel audio cable connector (FRONTAUDIO) 3  battery socket (BATTERY) 13  power connector (12VPOWER) 4  front - panel connector (FRONTPANEL) 14  serial port connect[...]

  • Page 20

      Jumper Settings     Resetting CMOS Settings  1  floppy - drive connector (DSKT) 12  CD drive audio cable connector (CD_IN) 2  CD/DVD drive connector (IDE2) 13  front - panel audio cable connector (FRONTAUDIO) 3  battery socket (BATTERY) 14  power connector (12VPOWER) 4  front - panel connector (FRONTPA[...]

  • Page 21

    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.  3.  Disconnect any telephone or telecommunication lines from the computer. 4.  Disconnect your[...]

  • Page 22

    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.  If your system board is secured to the computer with a screw[...]

  • Page 23

    Back to Contents Page [...]

  • Page 24

    Back to Contents Page CAUTION: Safety Instructions Dell™OptiPlex™GX270ServiceManual  General  When Working Inside Your Computer  Protecting Against Electrostatic Discharge  Battery Disposal   Use the following safety guidelines to help ensure your own personal safety and to help protect your computer an[...]

  • Page 25

    Back to Contents Page  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 t[...]