Dell OptiPlex 3090 Micro Service Manual
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Dell OptiPlex 3090 Micro Service Manual

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OptiPlex 3090 Micro
Service Manual
Regulatory Model: D14U
Regulatory Type: D14U001
October 2021
Rev. A00
Table of Contents
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Summary of Contents for Dell OptiPlex 3090 Micro

  • Page 1 OptiPlex 3090 Micro Service Manual Regulatory Model: D14U Regulatory Type: D14U001 October 2021 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents Chapter 1: Working inside your computer..................6 Safety instructions................................6 Before working inside your computer........................6 Safety precautions.................................7 Electrostatic discharge—ESD protection........................7 ESD field service kit ..............................8 After working inside your computer..........................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list.....................................
  • Page 4 Assigning a system setup password........................64 Deleting or changing an existing system setup password.................64 Clearing BIOS (System Setup) and System passwords..................65 Chapter 5: Troubleshooting......................66 Dell SupportAssist Pre-boot System Performance Check diagnostics..............66 Running the SupportAssist Pre-Boot System Performance Check..............66 Diagnostic LED behavior..............................66 Contents...
  • Page 5 Recovering the operating system..........................68 Backup media and recovery options..........................68 WiFi power cycle................................68 Chapter 6: Getting help.......................69 Contacting Dell.................................. 69 Contents...

  • Page 6: Chapter 1: Working Inside Your Computer

    You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 7: Safety Precautions

    ESD protection is an increasing concern. Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 8: Esd Field Service Kit

    Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag. ● Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Working inside your computer...

  • Page 9: After Working Inside Your Computer

    It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

  • Page 10: Chapter 2: Removing And Installing Components

    Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ●...
  • Page 11 Table 1. Screw list (continued) Component Screw type Quantity Image System board M3x4 6-32 Removing and installing components...

  • Page 12: Major Components Of Your System

    Major components of your system 1. Side cover Removing and installing components...

  • Page 13: Side Cover

    12. Hard drive assembly NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.
  • Page 14 Steps 1. Loosen the thumbscrew (6x32) that secures the side cover to the system. Removing and installing components...

  • Page 15: Installing The Side Cover

    2. Slide the side cover towards the front of the system and lift the cover. Installing the side cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the side cover and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 16: Front Bezel

    Steps 1. Align the side cover with the grooves on the chassis. 2. Slide the side cover towards the back of the system to install it. 3. Tighten the thumbscrew (6x32) to secure the side cover to the system. Next steps 1.

  • Page 17: Installing The Front Bezel

    Steps 1. Pry the retention tabs to release the front bezel from the system. 2. Remove the front bezel from the system. Installing the front bezel Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the front bezel and provides a visual representation of the installation procedure.

  • Page 18: Hard-Drive Assembly

    Steps 1. Position the bezel to align the tabs with the slots on the chassis. 2. Press the bezel until the release tabs click into place. Next steps 1. Install the side cover. 2. Follow the procedure in after working inside your computer.

  • Page 19: Removing The Hard-Drive Bracket

    Steps 1. Press the release tabs on the hard-drive assembly and slide it towards the front of the system to disconnect it from the connector on the system board. 2. Lift the hard drive assembly from the system. NOTE: Note the orientation of the hard drive so that you can replace it correctly. Removing the hard-drive bracket Prerequisites 1.

  • Page 20: Installing The Hard-Drive Bracket

    Steps 1. Pull one side of the hard-drive bracket to disengage the pins on the bracket from the slots on the drive. 2. Lift the hard-drive out of the bracket. Installing the hard-drive bracket Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the hard-drive bracket and provides a visual representation of the installation procedure.

  • Page 21: Installing The 2.5 In. Hard-Drive Assembly

    Steps 1. Place the hard-drive into the bracket. 2. Align and insert the pins on the drive bracket with the slots on the drive. NOTE: Note the orientation of the hard-drive so that you can replace it correctly. Next steps 1.

  • Page 22: Solid-State Drive

    Steps 1. Insert the hard-drive assembly into the slot on the system. 2. Slide the hard-drive assembly towards the connector in the system board until the release tabs clicks into place. Next steps 1. Install the side cover. 2. Follow the procedure in after working inside your computer.

  • Page 23: Installing The M.2 2230 Pcie Solid-State Drive

    About this task The following images indicate the location of the solid-state drive and provide a visual representation of the removal procedure. Steps 1. Remove the screw (M2x3.5) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2230 PCIe solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 24: Removing The M.2 2280 Pcie Solid-State Drive

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector on the system board. 2. Insert the solid-state drive at a 45-degree angle into the solid-state drive connector. 3. Replace the screw (M2x3.5) that secures the M.2 2230 PCIe solid-state drive to the system board. Next steps 1.

  • Page 25: Installing The M.2 2280 Pcie Solid-State Drive

    Steps 1. Remove the screw (M2x3.5) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2280 PCIe solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.

  • Page 26: Fan Assembly

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector on the system board. 2. Insert the solid-state drive at a 45-degree angle into the solid-state drive connector. 3. Replace the screw (M2x3.5) that secures the M.2 2280 PCIe solid-state drive to the system board. Next steps 1.
  • Page 27 Removing and installing components...

  • Page 28: Installing The Fan Assembly

    Steps 1. Unroute the speaker cable from the routing guide on the fan assembly. 2. Press the blue tabs on both sides of the fan, and slide to lift the fan to release it from the system. 3. Turn the fan assembly over. 4.
  • Page 29 Removing and installing components...

  • Page 30: Wlan Card

    Steps 1. Connect the fan cable to the connector on the system board. 2. Turn the fan assembly over. 3. Press the release tab on the fan assembly and place it on the system until it clicks into place. 4. Route the speaker cable through the routing guides on the fan assembly. Next steps 1.

  • Page 31: Installing The Wlan Card

    2. Remove the side cover. 3. Remove the hard-drive assembly. About this task The following images indicate the location of the wireless card and provide a visual representation of the removal procedure. Steps 1. Remove the (M2x3.5) screw that secures the WLAN card bracket to the system board. 2.
  • Page 32 Steps 1. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card of your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black...

  • Page 33: Heat Sink

    Heat sink Removing the heat sink Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the assembly. About this task The following images indicate the location of the heat sink and provide a visual representation of the removal procedure. Steps 1.

  • Page 34: Installing The Heat Sink

    Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the heat sink and provides a visual representation of the installation procedure. Steps 1.

  • Page 35: Coin-Cell Battery

    Coin-cell battery Removing the coin-cell battery Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. NOTE: Removing the coin-cell battery resets the BIOS setup program settings to default. It is recommended that you note the BIOS setup program settings before removing the coin-cell battery.

  • Page 36: Memory Modules

    Steps 1. Insert the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector. 2. Press the battery into the connector until it locks into place. Next steps 1.

  • Page 37: Installing The Memory Modules

    Steps 1. Pull the securing clips from the memory module until the memory module pops up. 2. Slide and remove the memory module from the memory-module slot. Installing the memory modules Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the memory modules and provides a visual representation of the installation procedure.

  • Page 38: Speaker

    Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it.

  • Page 39: Installing The Speaker

    Steps 1. Disconnect the speaker cable from the system board. 2. Press the release tab and lift the speaker along with the cable from the system board. Installing the speaker Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the speaker and provides a visual representation of the installation procedure.

  • Page 40: Optional I/O Modules (Type C/ Hdmi/Vga/Dp/Serial)

    Steps 1. Align and insert the speaker into the slot and press it until the release tab clicks. 2. Connect the speaker cable to the system board. Next steps 1. Install the assembly. 2. Install the side cover. 3. Follow the procedure in after working inside your computer.

  • Page 41: Installing Optional I/O Modules (Type C/ Hdmi/Vga/Dp/Serial)

    Installing optional I/O modules (Type C/ HDMI/VGA/DP/Serial) Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the system board and provide a visual representation of the installation procedure. Removing and installing components...
  • Page 42 Removing and installing components...
  • Page 43 Removing and installing components...
  • Page 44 Steps 1. To remove the dummy metal bracket, insert a flat-head screwdriver in the hole of the bracket. Push the bracket to release the bracket, and then lift the bracket out from the system. NOTE: This is applicable if you are upgrading the system or adding any of the optional video ports. This is not applicable if you are replacing a defective module.

  • Page 45: Processor

    Processor Removing the processor Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the assembly. 4. Remove the heat sink. About this task The following images indicate the location of the processor and provide a visual representation of the removal procedure. Steps 1.

  • Page 46: Installing The Processor

    CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 3. Gently lift the processor from the processor socket. Installing the processor Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 47: System Board

    NOTE: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the processor socket. When the processor is properly seated, all four corners are aligned at the same height. If one or more corners of the processor are higher than the others, the processor is not seated properly.
  • Page 48 Removing and installing components...

  • Page 49: Installing The System Board

    Steps 1. Remove the screw (6-32) that secures the hard drive caddy support to the system board. 2. Lift the hard drive caddy support away from the system board. 3. Remove the two (M3x4) screws and three (6-32) screws that secure the system board to the chassis. 4.
  • Page 50 Removing and installing components...
  • Page 51 Steps 1. Align and lower the system board into the system until the connectors at the back of the system board align with the slots on the chassis, and the screw holes on the system board align with the standoffs on the system. 2.

  • Page 52: Chapter 3: Drivers And Downloads

    Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347. Drivers and downloads...

  • Page 53: Chapter 4: Bios Setup

    BIOS setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.

  • Page 54: One Time Boot Menu

    Table 3. Navigation keys (continued) Keys Navigation Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system. One time boot menu To enter one time boot menu, turn on your computer, and then press F12 immediately.

  • Page 55: System Information

    System information Table 5. System Configuration Option Description Integrated NIC Allows you to control the onboard LAN controller. The option ‘Enable UEFI Network Stack’ is not selected by default. The options are: ● Disabled ● Enabled ● Enabled w/PXE (default) NOTE: Depending on the computer and its installed devices, the items that are listed in this section may or may not appear.

  • Page 56: Security

    Table 6. Video Option Description ● Auto (default) ● Intel HD Graphics NOTE: If you do not select Auto, the on-board graphics device will be present and enabled. Security Table 7. Security Option Description Admin Password Allows you to set, change, and delete the admin password. System Password Allows you to set, change, and delete the system password.

  • Page 57: Secure Boot Options

    Table 7. Security (continued) Option Description ● Permanently Disabled Chassis Intrusion This field controls the chassis intrusion feature. Choose any one of the options: ● Disabled (default) ● Enabled ● On-Silent Admin Setup Lockout Allows you to prevent users from entering Setup when Admin password is set. This option is not set by default.

  • Page 58: Intel Software Guard Extensions Options

    Intel Software Guard Extensions options Table 9. Intel Software Guard Extensions Option Description Intel SGX Enable This field specifies you to provide a secured environment for running code/storing sensitive information in the context of the main OS. Click one of the following options: ●...

  • Page 59: Power Management

    Power management Table 11. Power Management Option Description AC Recovery Determines how the system responds when AC power is re-applied after a power loss. You can set the AC Recovery to: ● Power Off ● Power On ● Last Power State This option is Power Off by default.

  • Page 60: Virtualization Support

    Table 12. POST Behavior (continued) Option Description ● Minimal — The system boots quickly, unless the BIOS has been updated, memory changed, or the previous POST did not complete. ● Thorough — The system does not skip any steps in the boot process. ●...

  • Page 61: Maintenance

    Maintenance Table 15. Maintenance Option Description Service Tag Displays the service tag of your computer. Asset Tag Allows you to create a system asset tag if an asset tag is not already set. This option is not set by default. SERR Messages Controls the SERR message mechanism.

  • Page 62: Supportassist System Resolution

    Steps 1. Go to www.dell.com/support. 2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You can also use the product ID or manually browse for your computer model.

  • Page 63: Updating The Bios From The F12 One-Time Boot Menu

    One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.

  • Page 64: System And Setup Password

    5. Select the file and double-click the flash target file, and then click Submit. 6. Click Update BIOS. The computer restarts to flash the BIOS. 7. The computer will restart after the BIOS update is completed. System and setup password Table 18.

  • Page 65: Clearing Bios (System Setup) And System Passwords

    Clearing BIOS (System Setup) and System passwords About this task To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.

  • Page 66: Chapter 5: Troubleshooting

    Check diagnostics About this task SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to: ●...
  • Page 67 Table 19. Diagnostic LED behavior (continued) Blinking pattern Amber White Problem description Suggested resolution CPU failure ● Run the Dell Support Assist/Dell Diagnostics tool. ● If problem persists, replace the system board. System board failure (included ● Flash latest BIOS version BIOS corruption or ROM ●...
  • Page 68 It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.
  • Page 69 About this task Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Steps 1.

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