Dell 3902 Owner's Manual

Dell Vostro 3900/3902Owner's ManualRegulatory Model: D17MRegulatory Type: D17M001

3. Follow the steps to remove the bezel:a. Pry the front panel retention clips away from the chassis.b. Release the hooks on the opposite edge of the

3. Follow the steps to remove the SATA cable and the power cable:a. Disconnect the SATA cable and power cable from the hard drive [1] [2].b. Remove th

6. Install the:• bezel• cover7. Follow the procedures in After Working Inside Your Computer.Removing the Optical Drive1. Follow the procedures in Befo

Removing the Card Reader1. Follow the procedures in Before Working Inside Your Computer.2. Remove the:• cover• bezel3.a. Disconnect the card reader po

3. Press down on the memory-retaining tabs on each side of the memory modules and lift the memory module upwards to remove it from the computer.Instal

3. Connect the heatsink cable to the system board.4. Install the cover.5. Follow the procedures in After Working Inside Your Computer.Removing the Pro

3. Follow the steps to remove the expansion card:a. Press the blue tab and slide down the release lever that secures the expansion card.b. Press on th

3. Disconnect the following power supply cables from the system board by pressing on the retention latch and lifting it upwards.• system board power c

4. Install the cover.5. Follow the procedures in After Working Inside Your Computer.Removing the Power Switch1. Follow the procedures in Before Workin

Removing the Input/Output (I/O) Panel1. Follow the procedures in Before Working Inside Your Computer.2. Remove the:• cover• bezel3. Follow the steps t

Notes, Cautions, and WarningsNOTE: A NOTE indicates important information that helps you make better use of your computer.CAUTION: A CAUTION indicates

Installing the Input/Output (I/O) Panel1. Slide the I/O panel into its slot on the computer.2. Replace the screw that secures the I/O panel.3. Route t

Removing the System Board1. Follow the procedures in Before Working Inside Your Computer.2. Remove the:• cover• bezel• optical drive• hard drive• heat

4. Install the:• I/O panel• memory• expansion cards• processor• heatsink• hard drive• optical drive• bezel• cover5. Follow the procedures in After Wor

9. P1 power connector 10. card reader module connector11. real-time clock reset jumper 12. password reset jumper13. front USB connector 14. SATA conne

3Troubleshooting Your ComputerYou can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and Error Messages during the op

Power LED Light Status Possible Cause Troubleshooting Steps• If the display is connected and turned on, listen for a beep code.Diagnostic Error Messag

Error Messages DescriptionGENERAL FAILURE The operating system is unable to carry out the command. The message is usually followed by specific informa

Error Messages DescriptionKEYBOARD CONTROLLER FAILURE For external keyboards, check the cable connection. Restart the computer, and avoid touching the

Error Messages DescriptionNOT ENOUGH MEMORY OR RESOURCES. EXIT SOME PROGRAMS AND TRY AGAINYou have too many programs open. Close all windows and open

System Error MessagesSystem Message DescriptionAlert! Previous attempts at booting this system have failed at checkpoint [nnnn]. For help in resolving

Contents1 Working on Your Computer...5Before Working Inside Your Compu

4System SetupSystem Setup OverviewSystem Setup allows you to:• change the system configuration information after you add, change, or remove any hardwa

Processor Type Displays the type of processor.Processor ID Displays the processor IDProcessor Core Count Displays the processor core countL1 Cache Siz

Processor ConfigurationOnboard Device ConfigurationOnboard Audio Controller Enable or disable the onboard audio controller.Default: EnabledSATA Mode D

PowerWake up by Integrated LAN/WLAN Enable or disable Wake up by Integrated LAN/WLANAC Recovery Specifies the AC recovery mode.Auto Power On Enable or

5SpecificationsNOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more in

System InformationChipset Intel H81BIOS chip (NVRAM) 8M SPI Flash ROMExpansion BusBus speed:PCI Express PCIe 2.0 at speeds upto 5.0 GT/sSATA 0,1 SATA

Control Lights And Diagnostic Lightspower button light white light — solid white light indicates power-on state.amber light — solid amber light indica

EnvironmentalTemperature:Operating 10 °C to 35 °C (50 °F to 95 °F)Storage –40 °C to 65 °C (–40 °F to 149 °F)Relative humidity 20 % to 80 % (non-conden

6Contacting DellNOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill,

3 Troubleshooting Your Computer...24Diagnostic Power LED Codes...

1Working on Your ComputerBefore Working Inside Your ComputerUse the following safety guidelines to help protect your computer from potential damage an

To avoid damaging your computer, perform the following steps before you begin working inside the computer.1. Ensure that your work surface is flat and

After Working Inside Your ComputerAfter you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turn

2Removing and Installing ComponentsThis section provides detailed information on how to remove or install the components from your computer.Recommende

3. card reader 4. Front USB ports5. power switch 6. hard drive7. system board 8. memory module9. expansion card 10. heatsink fan11. system fanRemoving