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Dell D15M owner manual Perform the following steps as shown in the illustration

Models: D15M

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4.Remove the screws that secure the power supply to the back of the computer.

5.Perform the following steps as shown in the illustration:

a)Push in on the blue release tab beside the power supply [1].

b)Slide the power supply towards the front of the computer [2].

c)Lift and remove the power supply out of the computer. [3].

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Dell D15M Perform the following steps as shown in the illustration, c Lift and remove the power supply out of the computer

Contents

Dell OptiPlex 3020-Mini Tower Owners Manual Regulatory Model D15M Regulatory Type D15M001Notes, Cautions, and Warnings Contents 2 Removing and Installing Components1 Working on Your Computer 3 System Setup 4 Diagnostics5 Troubleshooting Your Computer 6 Technical SpecificationsWorking on Your Computer Before Working Inside Your ComputerTurning Off Your Computer After Working Inside Your Computer2. Connect any telephone or network cables to your computer 4. Turn on your computerPage Removing and Installing Components Recommended ToolsSystem Overview Inside view1. Follow the procedures in Before Working Inside Your Computer Removing the Cover5. front bezel 6. speaker 1. memory module 2. system board 3. optical drive 4. front i/o panel 5. coin cell 6. CPU coolerInstalling the Cover 4. Follow the procedures in After Working Inside Your ComputerRemoving the Intrusion Switch Installing the Intrusion SwitchRemoving the Front Bezel 1. Follow the procedures in Before Working Inside Your ComputerInstalling the Front Bezel Removing The Expansion Card4. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your ComputerInstalling the Expansion Card 4. Follow the procedures in After Working Inside Your ComputerInstalling the Memory Memory Module GuidelinesRemoving the Memory 1. Follow the procedures in Before Working Inside Your ComputerRemoving the Coin-Cell Battery Installing the Coin-Cell Battery3. Follow the procedures in After Working Inside Your Computer Removing the Hard DriveInstalling the Hard Drive 5. Follow the procedures in After Working Inside Your ComputerRemoving the Optical Drive 1. Follow the procedures in Before Working Inside Your ComputerInstalling the Optical Drive Removing the Speaker5. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your ComputerInstalling the Speaker Removing the Power Supply4. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your Computera Push in on the blue release tab beside the power supply b Slide the power supply towards the front of the computerc Lift and remove the power supply out of the computer 5. Perform the following steps as shown in the illustrationInstalling the Power Supply Removing the Heatsink AssemblyInstalling the Heatsink Assembly 6. Follow the procedures in After Working Inside Your ComputerInstalling the Processor Removing the System Fan5. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your ComputerInstalling the System Fan Removing the Power Switch5. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your Computer5. Perform the following steps as shown in the illustration 4. Release the power-switch cable from the chassis clipsb Slide to remove the power switch along its cable from the computer Installing the Power Switch Removing the I/O Panel6. Follow the procedures in After Working Inside Your Computer 1. Follow the procedures in Before Working Inside Your Computer5. Remove the screw that secures the I/O panel to the computer Installing the I/O Panel 7. Follow the procedures in After Working Inside Your Computer System Board ComponentsRemoving the System Board 1. Follow the procedures in Before Working Inside Your Computer7. Lift the system board out of the computer Installing the System Board 5. Follow the procedures in After Working Inside Your ComputerPage Navigation Keys System SetupBoot Sequence Table 2. General System Setup OptionsTable 1. Navigation Keys Table 3. System Configuration Table 4. Video Table 5. SecurityComputrace Service from Absolute Software Table 6. Secure Boot Table 8. Power Management Table 7. PerformanceTable 9. POST Behavior Table 10. Virtualization Supportthe System Configuration group is set to Enabled with ImageServer and when Lookup Method is set to Static IPand when Client DHCP is set to Static IP the System Configuration group is set to Enabled with ImageServerand when Client DHCP is set to Static IP Updating the BIOSthe System Configuration group is set to Enabled with ImageServer System and Setup Password Clearing Forgotten Password11. Follow the procedures in After Working Inside Your Computer 14. Follow the procedures in After Working Inside Your ComputerAssigning a System Password and Setup Password Deleting or Changing an Existing System and/or Setup Password11. Follow the procedures in After Working on Your Computer Disabling a System Password1. Follow the procedures in Before Working on Your Computer Page Diagnostics Enhanced Pre-Boot System Assessment ePSA DiagnosticsPage Troubleshooting Your Computer Power LED DiagnosticsAmber LED State DescriptionError Messages Error Messagebooting this installedBad command or Bad errorData error the hardware configurationA cable or connector may be loose, or the keyboard or keyboard/mouse controller may be faultyplease populate DIMM1or disk error Not a bootRead fault Reset failedWrite fault Write fault ondrive by calling your support deskTechnical Specifications Table 15. System InformationTable 16. Memory Table 17. VideoTable 21. Ports and Connectors Table 19. CommunicationsTable 20. Drives Table 22. Controls and LightsTable 25. Environmental Table 23. PowerTable 24. Physical Feature SpecificationAltitude OperatingContacting Dell