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Dell™ OptiPlex™ GX240 Systems
User’s Guide
www.dell.com | support.dell.com
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Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. Abbreviations and Acronyms For a complete list of abbreviations and acronyms, see the “Glossary.” ____________________ Information in this document is subject to c
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Contents Safety First—For You and Your Computer . . . . . . . . . . . . . 11 Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . 12 Ergonomic Computing Habits . . . . . . . . . . . . . . . . . . 12 1 About Your Computer Finding Information and Assistance . . . . . . . . . . . . . . . . 16 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Front Panel Door . . . . . . . . . . . . . . . . . . . . . . . . 22 Speaker/Headphone Connector . . . . . . . . . . . . . .
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System Board Components . . . . . . . . . . . . . . . . . . . 36 2 Advanced Features LegacySelect Technology Control . . . . . . . . . . . . . . . . . 40 Manageability . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Dell OpenManage™ IT Assistant . . . . . . . . . . . . . . . . 40 Dell OpenManage Client Instrumentation. . . . . . . . . . . . 41 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Chassis Intrusion Detection . . . . . . . . . . . . . . . . . . 41
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Expansion Cards . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Installing an Expansion Card . . . . . . . . . . . . . . . . . . 69 Removing an Expansion Card . . . . . . . . . . . . . . . . . . 75 Installing an AGP Graphics Card . . . . . . . . . . . . . . . . 77 Removing an AGP Card . . . . . . . . . . . . . . . . . . . . . 80 Expansion Card Cage (Small Desktop Computer Only) . . . . . . 81 Removing the Expansion-Card Cage . . . . . . . . . . . . . . . 81 Replacing the Expansion-Card Ca
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Floppy Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 Detaching Floppy Drive Cables . . . . . . . . . . . . . . . . . 120 Removing a Floppy Drive . . . . . . . . . . . . . . . . . . . . 124 Installing a Floppy Drive and Reattaching Cables . . . . . . . . 126 CD/DVD Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 Detaching CD, CD-RW, or DVD Drive Cables . . . . . . . . . . 131 Removing a CD, CD-RW, or DVD Drive . . . . . . . . . . . . 134 Installing a CD, CD-RW,
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Expansion Card Problems . . . . . . . . . . . . . . . . . . . 174 Recover From a Program That Is Not Responding . . . . . . . 175 Restart a Computer That Is Not Responding . . . . . . . . . . 176 Repairing a Wet Computer . . . . . . . . . . . . . . . . . . 176 Repairing a Dropped or Damaged Computer . . . . . . . . . . 177 Hardware Conflicts . . . . . . . . . . . . . . . . . . . . . . 177 Computer Memory Problems . . . . . . . . . . . . . . . . . 178 System Board Problems . . . . . . . .
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7 Getting Help Help Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Technical Assistance . . . . . . . . . . . . . . . . . . . . . . 206 Help Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Problems With Your Order . . . . . . . . . . . . . . . . . . . 209 Product Information . . . . . . . . . . . . . . . . . . . . . . 209 Returning Items for Warranty Repair or Credit . . . . . . . . . 209 Before You Call . . . . . . . . . . . . . . . . . . . . . . . . 210 Dell
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Safety First—For You and Your Computer The procedures in this section require that you open the cover and work inside your computer. NOTICE: Do not attempt to service the computer yourself, except as explained in this guide and elsewhere in Dell documentation. Always follow installation and service instructions closely. NOTICE: Before disconnecting a device from the computer or removing a component from the system board, verify that the standby power light on the system board has turned
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• Handle components and cards with care. Don't touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a microprocessor chip by its edges, not by its pins. CAUTION: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. Electrostatic Disch
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For comfort and efficiency, observe the following ergonomic guidelines when setting up and using your computer: • Position your computer so that the monitor and keyboard are directly in front of you as you work. Special shelves are available (from Dell and other sources) to help you correctly position your keyboard. • Set the monitor at a comfortable viewing distance (usually 510 to 610 millimeters [20 to 24 inches] from your eyes). • Make sure the monitor screen is at eye level or slightl
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1 5 2 4 3 1 monitor screen at or below eye level 4 arms at desk level 2 monitor and keyboard positioned directly in front of the user 5 wrists relaxed and flat 3 feet flat on the floor 14 www.dell.com | support.dell.com
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www.dell.com | support.dell.com SE CT ION 1 About Your Computer Finding Information and Assistance Front Panel Back Panel Inside Your Computer
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Finding Information and Assistance The following table lists the resources that Dell provides as support tools. Additional resources may be shipped with your computer system. Resources and Support Tools Resources Contents Using the Resource Dell OptiPlex ResourceCD See the main menu on the ResourceCD that was shipped with your computer. Use the pull-down menu to make •Dell Diagnostics selections appropriate for your computer. You can perform •Drivers the following tasks: • Utilities • Diagno
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(continued) Resources and Support Tools Resources Contents Using the Resource Service and Registration The Express Service Code and Service Tag Number are Labels—located on the front unique identifiers for your Dell computer. or side of your Dell™ You may need the Product Key (or Product ID) number to computer. complete the operating system setup. • Express Service Code and Service Tag Number • Product Key (also called the Product ID or Certificate of Authenticity [COA]) Operating system
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Resources and Support Tools (continued) Resources Contents Using the Resource User’s guides for your Depending on your operating system, double-click the computer and devices User’s Guides icon on your desktop or click the Start button and then select Help and Support to access the electronic documentation stored on your hard drive. Obtain information on the following: • Using your computer User’s Guides • Configuring system settings • Removing and installing parts • Installing and configuri
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Front Panel The following figures show the controls, lights, and features located on the front panel of the small form-factor, small desktop, and small mini-tower computers. Small Form-Factor Computer 12 3 4 5 1USB connectors (2) 2 headphone connector 3 hard drive access lights 4 power button 5power light About Your Computer 19
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Small Desktop Computer 12 3 4 5 1 front panel door 2 power button 3power light 4 hard drive access light 5 floppy drive access light 20 About Your Computer www.dell.com | support.dell.com
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Small Mini-Tower Computer 1 2 3 4 5 6 7 1removable drive panel 2 floppy drive access light 3removable drive panel 4 hard drive access light 5power button 6power light 7 front panel door About Your Computer 21
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Front Panel Door Open the front panel door to access two Universal Serial Bus (USB) connectors and one headphone connector. This door is removable; if you remove it or accidentally knock it off its hinges, it snaps back in place. Small Desktop Computer 13 2 1USB connectors (2) 2 headphone connector 3 breakaway hinges (2) 22 About Your Computer www.dell.com | support.dell.com
