Dell OptiPlex All-in-One Plus 7420 Owner's Manual
  1. Manuals
  2. Brands
  3. Dell Manuals
  4. Desktop
  5. OptiPlex All-in-One Plus 7420
  6. Owner's manual

Dell OptiPlex All-in-One Plus 7420 Owner's Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
OptiPlex All-in-One Plus 7420
Owner's Manual
Regulatory Model: W31C
Regulatory Type: W31C002
March 2024
Rev. A01

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the OptiPlex All-in-One Plus 7420 and is the answer not in the manual?

Questions and answers

Tyler
March 30, 2025

Is the OptiPlex All-In-One Plus compatible with a second monitor? Specifically, for a dual monitor display NOT just porting the display over to a second monitor

0
1 comments:
Mr. Anderson
March 31, 2025

Yes, the Dell OptiPlex All-in-One Plus 7420 is compatible with a dual monitor setup. It supports external displays through one DisplayPort++ 1.4a port and one HDMI-out 2.1 port.

This answer is automatically generated

0

Subscribe to Our Youtube Channel

Related Manuals for Dell OptiPlex All-in-One Plus 7420

Summary of Contents for Dell OptiPlex All-in-One Plus 7420

  • Page 1 OptiPlex All-in-One Plus 7420 Owner's Manual Regulatory Model: W31C Regulatory Type: W31C002 March 2024 Rev. A01...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2024 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, 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

    Front....................................... 9 Retractable camera ................................10 Bottom....................................12 Back panel....................................13 Service Tag..................................14 Chapter 2: Set up your computer....................15 Chapter 3: Specifications of OptiPlex All-in-One Plus 7420............20 Dimensions and weight..............................20 Processor.................................... 20 Chipset....................................21 Operating system................................22 Memory....................................22 External ports..................................23 Internal slots..................................
  • Page 4 Recommended tools................................. 35 Screw list.....................................36 Major components of your OptiPlex All-in-One Plus 7420..................37 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........40 Stand....................................40 Removing the stand..............................40 Installing the stand...............................41 Back cover..................................43 Removing the back cover............................43 Installing the back cover............................43 Memory....................................44...
  • Page 5 Power-supply unit................................76 Removing the power-supply unit..........................76 Installing the power-supply unit..........................77 Chapter 6: Removing and installing Field Replaceable Units (FRUs)..........79 Power-supply fan................................79 Removing the power-supply fan..........................79 Installing the power-supply fan..........................82 I/O bracket..................................85 Removing the I/O bracket............................85 Installing the I/O bracket............................86 Speakers....................................
  • Page 6 Deleting or changing an existing system setup password................127 Clearing CMOS settings..............................127 Clearing BIOS (System Setup) and System passwords..................127 Chapter 9: Troubleshooting....................... 129 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 129 Running the SupportAssist Pre-Boot System Performance Check.............. 129 Power-Supply Unit Built-in Self-Test ........................129 System-diagnostic lights..............................130 Recovering the operating system..........................130...

  • Page 7: Chapter 1: Views Of Optiplex All-In-One Plus 7420

    Views of OptiPlex All-in-One Plus 7420 Right Figure 1. Right view of OptiPlex All-in-One Plus 7420 1. USB 3.2 Gen 2 (10 Gbps) with PowerShare port Connect devices such as external storage devices, printers, and external displays. Provides a data transfer speed of up to 10 Gbps.

  • Page 8: Left

    Left Figure 2. Left view of OptiPlex All-in-One Plus 7420 1. Storage drive activity light The activity light turns on when the computer reads from or writes to storage drives. 2. Universal audio port Connect headphones or a headset (headphone and microphone combo).

  • Page 9: Front

    Front Figure 3. Front view of OptiPlex All-in-One Plus 7420 1. Left microphone Provides digital sound input for audio recording and voice calls. 2. Right microphone Provides digital sound input for audio recording and voice calls. 3. Retractable camera Enables you to video-chat, capture photos, and record videos. To protect your privacy, this camera can be retracted when it is not in use.

  • Page 10: Retractable Camera

    Figure 4. Locating the retractable camera NOTE: Depending on the configuration ordered your computer may have a 5MP RGB + Infrared camera or an FHD RGB camera. Views of OptiPlex All-in-One Plus 7420...
  • Page 11 Enables you to video chat, capture photos, and record videos. 4. Infrared emitter Emits infrared light, which enables the infrared camera to sense and track motion. 5. Camera-status light Turns on when the camera is in use. Views of OptiPlex All-in-One Plus 7420...

  • Page 12: Bottom

    Figure 6. Retractable camera for computers shipped with an FHD RGB camera 1. Camera Enables you to video chat, capture photos, and record videos. 2. Camera-status light Turns on when the camera is in use. Bottom Figure 7. Bottom view of OptiPlex All-in-One Plus 7420 Views of OptiPlex All-in-One Plus 7420...

  • Page 13: Back Panel

    Dell for your OptiPlex All-in-One Plus 7420. 2. Service Tag label The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in your computer and access warranty information.

  • Page 14: Service Tag

    Indicates the power-supply state. Service Tag The service tag is a unique alphanumeric identifier that allows Dell service technicians to identify the hardware components in your computer and access warranty information. Figure 9. Service tag location of your OptiPlex All-in-One Plus 7420...

  • Page 15: Chapter 2: Set Up Your Computer

    Set up your computer Steps 1. Install the stand base on the stand. NOTE: Stand base installation for all stand configurations offered for your computer is exactly the same. Follow the procedure shown in the image to install the stand base on the stand. Figure 10.
  • Page 16 Figure 11. Installing the stand 3. Set up the keyboard and mouse. NOTE: For setup instructions, see the documentation shipped with the keyboard and mouse. 4. Connect the power cable. Set up your computer...
  • Page 17 Figure 12. Connecting the power cable 5. Press the power button to turn on your computer. Set up your computer...
  • Page 18 000131676 at www.dell.com/support. For Windows: Follow the on-screen instructions to complete the setup. When setting up, Dell recommends that you: ● Connect to a network for Windows updates. NOTE: If connecting to a secured wireless network, enter the password for the wireless network access when prompted.
  • Page 19 Description Dell Update Updates your computer with critical fixes and latest device drivers as they become available. For more information about using Dell Update, see the product guides and third-party license documents at www.dell.com/support. Dell Digital Delivery Download software applications, which are purchased but not preinstalled on your computer. For more information about using Dell Digital Delivery, search in the Knowledge Base Resource at www.dell.com/support.

  • Page 20: Chapter 3: Specifications Of Optiplex All-In-One Plus 7420

    Specifications of OptiPlex All-in-One Plus 7420 Dimensions and weight The following table lists the height, width, depth, and weight of your OptiPlex All-in-One Plus 7420. Table 2. Dimensions and weight  Description Values Height: Front height 354.30 mm (13.95 in.) Rear height 354.30 mm (13.95 in.)

  • Page 21: Chipset

    Intel UHD Graphics Intel UHD Graphics Intel UHD Graphics Intel UHD graphics Graphics 770 Chipset The following table lists the details of the chipset that is supported for your OptiPlex All-in-One Plus 7420. Table 4. Chipset  Description Values Chipset Q670 Processor...

  • Page 22: Operating System

    Semi-Annual Channel Windows 11 version (N) and qualify (but not ship) the previous two versions (N-1, N-2). The OptiPlex All-in-One Plus 7420 will RTS with Windows 11 version v23H2 at time of launch, and this version will determine the N-2 versions that are initially qualified for this platform.

  • Page 23: External Ports

    ● 32 GB: 2 x 16 GB, DDR5, 5600 MT/s, dual-channel ● 64 GB: 2 x 32 GB, DDR5, 5600 MT/s, dual-channel External ports The following table lists the external ports of your OptiPlex All-in-One Plus 7420. Table 6. External ports  Description...

  • Page 24: Ethernet

    Ethernet The following table lists the wired Ethernet Local Area Network (LAN) specifications of your OptiPlex All-in-One Plus 7420. Table 8. Ethernet specifications  Description Values Model number Intel i219-LM Transfer rate 10/100/1000 Mbps Wireless module The following table lists the Wireless Local Area Network (WLAN) module specifications of your OptiPlex All-in-One Plus 7420.

  • Page 25: Storage

    ● One M.2 2230/2280 solid-state drive ● Up to two M.2 2230/2280 solid-state drives The primary drive of your OptiPlex All-in-One Plus 7420 varies with the storage configuration. For computers the primary drive is the M.2 drive where the operating system is installed.

  • Page 26: Camera

    Camera The following table lists the camera specifications of your OptiPlex All-in-One Plus 7420. Table 13. Camera specifications  Description Values Number of cameras Camera type ● FHD RGB camera ● 5MP RGB + Infrared camera Camera location Retractable camera Camera sensor type...

  • Page 27: Power Supply Connector

    Storage -40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F) Power supply connector The following table lists the Power supply connector specifications of your OptiPlex All-in-One Plus 7420. Table 15. Power supply connector  Power supply Connectors 160 W internal power supply unit (PSU), 80 Plus Bronze ●...

  • Page 28: Dell Comfortview

    Dell CinemaColor Dell CinemaColor (DCC) combines the hardware and software to deliver clear visuals that appear every bit as vibrant as the world around you. The DCC has four color profiles that optimize these settings depending on the content and your surroundings.

  • Page 29: Gpu-Integrated

    ComfortView Plus is a built-in, always-on, and virtually unnoticeable low blue light solution for Dell displays. ComfortView Plus employs a hardware-based design that allows for a wider blue spectrum, with a much lower peak and reduced intensity. Dell ComfortView Plus has been certified by TÜV Rheinland as a low blue light hardware solution. This feature is enabled at the factory.

  • Page 30: Hardware Security

    Packaging that contains without wood‐based fiber can be claimed as Not Applicable. The anticipated required criteria for EPEAT 2018. Operating and storage environment This table lists the operating and storage specifications of your OptiPlex All-in-One Plus 7420. Airborne contaminant level: G1 as defined by ISA-S71.04-1985 Table 21. Computer environment ...
  • Page 31 Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. * Measured using a random vibration spectrum that simulates the user environment. † Measured using a 2 ms half-sine pulse. Specifications of OptiPlex All-in-One Plus 7420...

  • Page 32: Chapter 4: 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 33: 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 34: Esd Field Service Kit

    Always place parts in your hand, on the ESD mat, in the computer, 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 35: Transporting Sensitive Components

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

  • Page 36: Screw List

    ● Phillips screwdriver #1 ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.

  • Page 37: Major Components Of Your Optiplex All-In-One Plus 7420

    Power-button and I/O board M3x5 shield Power-button and I/O board M3x5 Audio board shield M3x5 Audio board M3x5 Major components of your OptiPlex All-in-One Plus 7420 The following image shows the major components of your OptiPlex All-in-One Plus 7420. Working inside your computer...
  • Page 38 Figure 14. Major components of your OptiPlex All-in-One Plus 7420 1. Stand 2. Bottom cover 3. Antenna modules 4. Heat sink 5. Processor 6. Fan 7. M.2 2280 solid-state drive 8. Memory module 9. M.2 2230 solid-state drive 10. Wireless card 11.
  • Page 39 26. Power-supply fan 27. Back cover NOTE: Dell provides a list of components and their part numbers for the original configuration purchased. These parts are available according to warranty coverage purchased by the customer. Contact your Dell sales representative for purchase options.

  • Page 40: Chapter 5: Removing And Installing Customer Replaceable Units (Crus)

    Removing and installing Customer Replaceable Units (CRUs) The replaceable components in this chapter are Customer Replaceable Units (CRUs). CAUTION: Customers can replace only the Customer Replaceable Units (CRUs) following the safety precautions and replacement procedures. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Stand Removing the stand Prerequisites...

  • Page 41: Installing The Stand

    Figure 16. Removing the Fixed Stand Steps 1. Place the display-assembly base on a clean and flat surface. 2. Press and hold down on the tab that secures the stand to the display-assembly base. 3. Slide and lift the stand off the display-assembly base. Installing the stand Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 42 Figure 17. Installing the Height Adjustable Stand (HAS) Figure 18. Installing the Fixed Stand Steps 1. At an angle, align the tabs on the stand with the slots on the display-assembly base. 2. Slide the tabs on the stand into the slots on the display-assembly base. Removing and installing Customer Replaceable Units (CRUs)

  • Page 43: Back Cover

    Next steps 1. Follow the procedure in After working inside your computer. Back cover Removing the back cover Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. About this task NOTE: Before removing the base cover, ensure that there is no SD card installed in the SD-card slot on your computer. The following image indicates the location of the back cover and provides a visual representation of the removal procedure.

  • Page 44: Memory

    About this task The following image indicates the location of the back cover and provides a visual representation of the installation procedure. Figure 20. Installing the back cover Steps 1. Align the back cover to the display-assembly base. 2. Place and slide the back cover into place on the display assembly base. Next steps 1.

  • Page 45: Installing The Memory

    Figure 21. Removing the memory Steps 1. Using the tab on the DIMM door, pry open and lift the DIMM door on the system-board shield to access the memory slots. 2. Using your fingertips, carefully spread apart the securing clips on each end of the memory-module slot until the memory module pops out.
  • Page 46 Figure 22. Installing the memory 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 down on the memory module down until it clicks into place.

  • Page 47: Graphics Card

    Graphics card Removing the graphics card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the back cover. About this task The following image indicates the location of the graphics card and provides a visual representation of the removal procedure. Removing and installing Customer Replaceable Units (CRUs)
  • Page 48 Figure 23. Removing the graphics card Steps 1. Remove the two screws (M3x5) that secure the graphics-card assembly to the display-assembly base. 2. Slide and lift the graphics-card assembly off the display-assembly base. Removing and installing Customer Replaceable Units (CRUs)

  • Page 49: Installing The Graphics Card

    3. Using the tab on the DGFX door, pry open and lift the DGFX door on the graphics-card shield to access the graphics-card fan connector. 4. Disconnect the graphics-card fan from the graphics card. 5. Flip over the graphics-card assembly. 6.
  • Page 50 Figure 24. Installing the graphics card 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 down on the memory module down until it clicks into place.

  • Page 51: System-Board Shield

    NOTE: If you do not hear the click, remove the memory module and reinstall it again. NOTE: Repeat steps 1 to 2 for each memory module to be installed on your computer. 3. Close the DIMM door and press it into place, securing it. Next steps 1.

  • Page 52: Installing The System-Board Shield

    Figure 25. Removing the system-board shield Steps 1. Remove the six screws (M3x5) that secure the system-board shield to the display-assembly base. 2. Lift the system-board shield off the display-assembly base. Installing the system-board shield Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the system-board shield and provides a visual representation of the installation procedure.

  • Page 53: Wireless Card

    Figure 26. Installing the system-board shield Steps 1. Place the system-board on the display-assembly base. 2. Align the screw holes on the system-board shield with the screw holes on the display-assembly base. 3. Replace the six screws (M3x5) that secure the system-board shield to the display-assembly base. Next steps 1.

  • Page 54: Installing The Wireless Card

    About this task The following image indicates the location of the wireless card and provides a visual representation of the removal procedure. Figure 27. Removing the wireless card Steps 1. Remove the screw (M2x3.5) that secures the wireless-card bracket to the wireless card. 2.
  • Page 55 Figure 28. Installing the wireless card Steps 1. Connect the antenna cables to the wireless card. Table 23. Antenna-cable color scheme  Connector on the Antenna-cable color Silkscreen marking wireless card △ (white triangle) Main White MAIN Auxiliary Black ▲ (black triangle) 2.

  • Page 56: Solid-State Drive In M.2 Slot 0

    3. Install the stand. 4. Follow the procedure in After working inside your computer. Solid-state drive in M.2 slot 0 Removing the M.2 2230 solid-state drive in M.2 slot 0 Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 57: Installing The M.2 2230 Solid-State Drive In M.2 Slot 0

    Installing the M.2 2230 solid-state drive in M.2 slot 0 Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: This procedure is only applicable if you are installing an M.2 2230 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 0) on the system board.

  • Page 58: Installing The M.2 2280 Solid-State Drive In M.2 Slot 0

    2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board shield. About this task NOTE: Depending on the configuration ordered, your computer may have up to two M.2 2230 or 2280 solid-state drives installed in the solid-state drive slots on the system board. NOTE: This procedure is applicable for computers where an M.2 2280 solid-state drive is installed in the solid-state drive slot (M.2 PCIe SSD 0) on the system board.

  • Page 59: Location Of The Screw Mount On M.2 Slot 0

    Figure 32. Installing the M.2 2280 solid-state drive in M.2 slot 0 Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the solid-state drive slot (M.2 PCIe SSD 0). 2. Slide the M.2 2280 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 0) on the system board. 3.

  • Page 60: Solid-State Drive In M.2 Slot 1

    Figure 33. Moving the solid-state screw mount on M.2 slot 0 Steps 1. Remove the screw mount on the system board. 2. Install the screw mount on the system board. Next steps 1. Install the M.2 2230 solid-state drive in slot 0 or the M.2 2280 solid-state drive in slot 0, whichever is applicable.

  • Page 61: Installing The M.2 2230 Solid-State Drive In M.2 Slot 1

    Figure 34. Removing the M.2 2230 solid-state drive in M.2 slot 1 Steps 1. Remove the screw (M2x3.5) that secures the M.2 2230 solid-state drive to the system board. 2. Slide and lift the M.2 2230 solid-state drive from the solid-state drive slot (M.2 PCIe SSD 1) on the system board. Installing the M.2 2230 solid-state drive in M.2 slot 1 Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 62: Removing The M.2 2280 Solid-State Drive In M.2 Slot 1

    Figure 35. Installing the M.2 2230 solid-state drive in M.2 slot 1 Steps 1. Align the notch on the M.2 2230 solid-state drive with the tab on the solid-state drive slot (M.2 PCIe SSD 1). 2. Slide the M.2 2230 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 1) on the system board. 3.

  • Page 63: Installing The M.2 2280 Solid-State Drive In M.2 Slot 1

    Figure 36. Removing the M.2 2280 solid-state drive in M.2 slot 1 Steps 1. Remove the screw (M2x3.5) that secures the M.2 2280 solid-state drive to the system board. 2. Slide and lift the M.2 2280 solid-state drive from the solid-state drive slot (M.2 PCIe SSD 1) on the system board. Installing the M.2 2280 solid-state drive in M.2 slot 1 Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 64: Location Of The Screw Mount On M.2 Slot 1

    Figure 37. Installing the M.2 2280 solid-state drive in M.2 slot 1 Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the solid-state drive slot (M.2 PCIe SSD 1). 2. Slide the M.2 2280 solid-state drive into the solid-state drive slot (M.2 PCIe SSD 1) on the system board. 3.

  • Page 65: Coin-Cell Battery

    Figure 38. Moving the solid-state screw mount on M.2 slot 1 Steps 1. Remove the screw mount on the system board. 2. Install the screw mount on the system board. Next steps 1. Install the M.2 2230 solid-state drive in slot 1 or the M.2 2280 solid-state drive in slot 1, whichever is applicable.

  • Page 66: Installing The Coin-Cell Battery

    Figure 39. Removing the coin-cell battery Steps 1. Push the release lever on the coin-cell battery socket (RTC) to release the coin-cell battery out of the socket. 2. Lift the coin-cell battery from the coin-cell battery socket. Installing the coin-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 67: I/O Cover

    Figure 40. Installing the coin-cell battery Steps With the positive side (+) facing up, insert the coin-cell battery into the battery socket (RTC) on the system board and snap the battery into place. Next steps 1. Install the system-board shield. 2.

  • Page 68: Installing The I/O Cover

    Figure 41. Removing the I/O cover Steps 1. Remove the two screws (M3x5) that secure the I/O cover to the display-assembly base. 2. Lift the I/O cover off the display-assembly base. Installing the I/O cover Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the I/O cover and provides a visual representation of the installation procedure.

  • Page 69: Bottom Cover

    Figure 42. Installing the I/O cover Steps 1. Place the I/O cover on the display-assembly base. 2. Align the I/O slots with the I/O ports and the screw holes on the I/O cover with the screw holes on the display-assembly base.

  • Page 70: Installing The Bottom Cover

    Figure 43. Removing the bottom cover Steps 1. Remove the three screws (M3x5) that secure the bottom cover to the display-assembly base. 2. Lift the bottom cover off the display-assembly base. Installing the bottom cover Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the bottom cover and provides a visual representation of the installation procedure.

  • Page 71: Retractable-Camera Assembly

    Figure 44. Installing the bottom cover Steps 1. Place and align the bottom cover with the display-assembly base. 2. Align the screw holes on the bottom cover with the screw holes on the display-assembly base. 3. Replace the three screws (M3x5) that secure the bottom cover to the display-assembly base. Next steps 1.

  • Page 72: Installing The Retractable-Camera Assembly

    Figure 45. Removing the retractable-camera assembly Steps 1. Remove the two screws (M3x5) that secure the camera-assembly bracket to the display-assembly base. 2. Lift the camera-assembly bracket off the display-assembly base. 3. Using the pull tab, disconnect the camera cable from its connector (WEBCAM) on the system board. 4.
  • Page 73 Figure 46. Installing the retractable-camera assembly Steps 1. Slide the retractable-camera assembly under the heat sink into its slot on the display-assembly base. 2. Align the screw holes on the retractable-camera assembly with the screw holes on the display-assembly base. 3.

  • Page 74: Fan

    Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board shield. About this task The following image indicates the location of the fan and provides a visual representation of the removal procedure. Figure 47.

  • Page 75: Installing The Fan

    Installing the fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the fan and provides a visual representation of the installation procedure. Figure 48.

  • Page 76: Power-Supply Unit

    Power-supply unit Removing the power-supply unit Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the back cover. 4. Remove the system-board shield. 5. Remove the cover. About this task The following image indicates the location of the power-supply unit and provides a visual representation of the removal procedure.

  • Page 77: Installing The Power-Supply Unit

    Steps 1. Press and hold the securing clip and disconnect the processor-power cable from its connector (ATX CPU) on the system board. 2. Disconnect the control-signal cable from its connector (CTRL) on the system board. 3. Disconnect the system-board power cable from its connector (ATX SYS) on the system board. 4.
  • Page 78 Steps 1. Place the power-supply unit and the power-supply unit connector on the display-assembly base. 2. Align the screw holes on the power-supply unit with the screw holes on the display-assembly base. 3. Replace the three screws (M3x5) that secure the power-supply unit to the display-assembly base. 4.

  • Page 79: Chapter 6: Removing And Installing Field Replaceable Units (Frus)

    To avoid any potential damage to the component or loss of data, ensure that an authorized service technician replaces the Field Replaceable Units (FRUs). CAUTION: Dell Technologies recommends that this set of repairs, if needed, to be conducted by trained technical repair specialists. CAUTION: As a reminder, your warranty does not cover damages that may occur during FRU repairs that are not authorized by Dell Technologies.
  • Page 80 Figure 51. Removing the power-supply fan Removing and installing Field Replaceable Units (FRUs)
  • Page 81 Figure 52. Removing the power-supply fan Removing and installing Field Replaceable Units (FRUs)

  • Page 82: Installing The Power-Supply Fan

    Figure 53. Removing the power-supply fan Steps 1. Disconnect the power-supply fan cable from its connector (FAN SYS) on the system board. 2. Remove the power-supply fan cable from the routing guides on the display-assembly base. 3. Remove the audio-board cable from the routing guides on the display-assembly base and the power-supply fan. 4.
  • Page 83 Figure 54. Installing the power-supply fan Removing and installing Field Replaceable Units (FRUs)
  • Page 84 Figure 55. Installing the power-supply fan Figure 56. Installing the power-supply fan Removing and installing Field Replaceable Units (FRUs)

  • Page 85: I/O Bracket

    Steps 1. Place the power-supply fan on the display-assembly base. 2. Align the screw holes on the power-supply fan with the screw holes on the display-assembly base. 3. Replace the two screws (M3x5) that secure the power-supply fan to the display-assembly base. 4.

  • Page 86: Installing The I/O Bracket

    Figure 57. Removing the I/O bracket Steps 1. Remove the two screws (M3x5) that secure the power-supply cable connector bracket to the display-assembly base. 2. Lift the power-supply cable connector bracket off the display-assembly base. 3. Remove the two screws (M3x5) that secure the I/O bracket to the display-assembly base. 4.

  • Page 87: Speakers

    Figure 58. Installing the I/O bracket Steps 1. Place and align the I/O bracket with the display-assembly base. 2. Align the I/O slots to the I/O ports and the screw holes on the I/O bracket with the screw holes on the display-assembly base.

  • Page 88: Installing The Speakers

    5. Remove the cover. 6. Remove the bottom cover. About this task The following image indicates the location of the speakers and provides a visual representation of the removal procedure. Figure 59. Removing the speakers Steps 1. Disconnect the speaker cable from its connector (INT SPKR) on the audio board. 2.

  • Page 89: Heat Sink

    Figure 60. Installing the speakers Steps 1. Insert the speakers into their slots on the display-assembly base. 2. Route the speaker cable through the routing guides on the display-assembly base. 3. Connect the speaker cable to its connector (INT SPKR) on the audio board. Next steps 1.

  • Page 90: Installing The Heat Sink

    NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease. The following image indicates the location of the heat sink and provides a visual representation of the removal procedure. Figure 61.

  • Page 91: Processor

    Figure 62. Installing the heat sink Steps 1. Place the heat sink on the system board and the display-assembly base. 2. Align the screws on the heat sink with the screw holes on the system board and the display-assembly base. 3.

  • Page 92: Installing The Processor

    NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the processor. The oils in your skin can reduce the heat transfer capability of the thermal grease. The following image indicates the location of the processor and provides a visual representation of the removal procedure. Figure 63.
  • Page 93 About this task NOTE: If either the processor or the fan and heat sink is replaced, use the thermal grease provided in the kit to ensure optimal thermal conductivity. The following image indicates the location of the processor and provides a visual representation of the installation procedure. Figure 64.

  • Page 94: System Board

    3. Install the back cover. 4. Install the stand. 5. Follow the procedure in After working inside your computer. System board Removing the system board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.
  • Page 95 Figure 65. System board callouts 1. Touchscreen cable (TOUCH) 2. Display-backlight cable (LCD BACKLIGHT) 3. Processor socket (CPU) 4. Camera cable (WEBCAM) 5. Processor-power cable (ATX CPU) 6. Memory slots (DIMM1 + DIMM2) 7. Fan cable (FAN CPU) 8. Control-signal cable (CTRL) 9.
  • Page 96 Figure 66. Removing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 97 Figure 67. Removing the system board Steps 1. Disconnect the touchscreen cable from its connector (TOUCH) on the system board. 2. Disconnect the display-backlight cable from its connector (LCB BACKLIGHT) on the system board. 3. Using the pull tab, disconnect the camera cable from its connector (WEBCAM) on the system board. 4.

  • Page 98: Installing The System Board

    Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. Make the appropriate changes again after you replace the system board.
  • Page 99 The following images indicate the location of the system board and provide a visual representation of the installation procedure. Figure 69. Installing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 100 Figure 70. Installing the system board Steps 1. Gently place the system board on the display-assembly base. 2. Align the screw holes on the system board with the screw holes on the display-assembly base. 3. Replace the seven screws (M3x5) that secure the system board to the display-assembly base. 4.

  • Page 101: Power-Button And I/O Board

    10. Install the graphics card. 11. Install the memory. 12. Install the back cover. 13. Install the stand. 14. Follow the procedure in After working inside your computer. Power-button and I/O board Removing the power-button and I/O board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 102: Installing The Power-Button And I/O Board

    Figure 71. Removing the power-button and I/O board Steps 1. Remove the three screws (M3x5) that secure the power-button and I/O board shield to the display-assembly base. 2. Lift the power-button and I/O board shield off the display-assembly base. 3. Lift the latch and disconnect the power cable from its connector (DB-PWR) on the power-button and I/O board. 4.
  • Page 103 About this task The following image indicates the location of the power-button and I/O board and provides a visual representation of the installation procedure. Figure 72. Installing the power-button and I/O board Steps 1. Place the power-button and I/O board on the display-assembly base. 2.

  • Page 104: Audio Board

    4. Install the system-board shield. 5. Install the back cover. 6. Install the stand. 7. Follow the procedure in After working inside your computer. Audio board Removing the audio board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 105: Installing The Audio Board

    Figure 73. Removing the audio board Steps 1. Remove the three screws (M3x5) that secure the audio board shield to the display-assembly base. 2. Lift the audio-board shield off the display-assembly base. 3. Lift the latch and disconnect the audio cable from its connector (DB-AUDIO) on the audio board. 4.
  • Page 106 About this task The following image indicates the location of the audio board and provides a visual representation of the installation procedure. Figure 74. Installing the audio board Steps 1. Place the audio board on the display-assembly base. 2. Align the screw holes on the audio board with the screw holes on the display-assembly base. 3.

  • Page 107: Display-Assembly Base

    5. Install the back cover. 6. Install the stand. 7. Follow the procedure in After working inside your computer. Display-assembly base Removing the display-assembly base CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 108: Installing The Display-Assembly Base

    Figure 75. Removing the display-assembly base Steps After performing the pre-requisites, you are left with the display-assembly base. Installing the display-assembly base CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task NOTE: The display-assembly base includes the following components:...
  • Page 109 Figure 76. Installing the display-assembly base Steps To install the display-assembly base, perform all the post-requisite procedures. Next steps 1. Install the power-button and I/O board. 2. Install the audio board. 3. Install the system board. NOTE: The system board can be installed with the memory, solid-state drive(s), coin-cell battery, and processor pre-attached.

  • Page 110: Chapter 7: Software

    ● Windows 11 Pro, 64-bit ● Windows 11 Pro National Education, 64-bit ● Ubuntu Linux 22.04 LTS, 64-bit Drivers and downloads When troubleshooting, downloading, or installing drivers, it is recommended that you read the Dell Knowledge Base article Drivers and Downloads FAQs 000123347. Software...

  • Page 111: Chapter 8: Bios Setup

    BIOS Setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items that are listed in this section may or may not be displayed.

  • Page 112: System Setup Options

    NOTE: It is recommended to shut down the computer, if it is on. The F12 One Time Boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: ● Removable Drive (if available) ●...
  • Page 113 Enables the computer to boot using only validated boot software. By default, the Enable Secure Boot option is enabled. For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that the UEFI firmware validates the operating system during the boot process.
  • Page 114 Table 27. System setup options—Integrated Devices menu  Integrated Devices Date/Time Displays the current date in MM/DD/YYYY format and current time in HH:MM:SS AM/PM format. Camera Enables or disable the camera. By default, the Enable Camera option is selected Audio Enable Audio Enable or disable the integrated audio controller.
  • Page 115 Table 28. System setup options—Storage menu (continued) Storage Device Displays the M.2 PCIe SSD-1 device information of the computer. Enable MediaCard Secure Digital (SD) Card Enable or disable the SD card. By default, the Secure Digital (SD) Card option is enabled. Secure Digital (SD) Card Read-Only Mode Enable or disable the SD card read-only mode.
  • Page 116 TPM On Allows you to enable or disable TPM. By default, the TPM On option is enabled. For additional security, Dell Technologies recommends keeping TPM enabled to allow these security technologies to fully function. Physical Presence Interface (PPI) Bypass The Physical Presence Interface (PPI) Bypass options can be used to allow for Enable Commands the operating system to manage certain aspects of the TPM.
  • Page 117 BIOS. This option returns to disabled state when the system restarts. By default, the Clear option is disabled. Dell Technologies recommends enabling the Clear option only when TPM data is required to be cleared. TPM State Enables or disables the Trusted Platform Module (TPM). This is the normal operating state for the Trusted Platform Module (TPM) when you want to use its complete array of capabilities.
  • Page 118 Table 32. System setup options—Security menu (continued) Security Dell Technologies recommends enabling the Clear option only when PTT fTPM data needs to be cleared. Chassis intrusion Chassis Intrusion Detection Allows you to control the chassis intrusion feature. This feature notifies the user when the base cover has been removed from the computer.
  • Page 119 Enables, disables, or permanently disables the BIOS module interface of the optional Absolute Persistence Module service from Absolute software. By default, the Absolute option is enabled. For additional security, Dell Technologies recommends keeping the Absolute option enabled. WARNING: The 'Permanently Disabled' option can only be selected once.
  • Page 120 Password prompt. ● The system password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the system password in situations where it is likely that a system may be lost or stolen. Hard Drive Password The Hard Drive Password can be set to prevent unauthorized access of the data stored on the hard drive.
  • Page 121 BIOS passwords. You can modify the minimum and maximum length of the passwords as well as require passwords to contain certain character classes (upper case, lower case, digit, special character). Dell Technologies recommends setting the minimum password length to at least 8 characters. Password Bypass The Password Bypass option allows the computer to reboot from the operating system without entering the system or hard drive password.
  • Page 122 Master Password Lockout can be changed. By default, the Enable Master Password Lockout option is disabled. Dell Technologies does not recommend enabling the Master Password Lockout unless you have implemented your own password recovery system. Table 34. System setup options—Update, Recovery menu ...
  • Page 123 Table 35. System setup options—System Management menu (continued) System Management By default, the option is disabled. USB Provision Enable USB Provision Enable or disable the Intel AMT provisioning using the local provisioning file through a USB storage device. By default, the option is disabled. SERR Messages Enable or disable SERR messages.
  • Page 124 Table 38. System setup options—Virtualization menu (continued) Virtualization Intel Trusted Execution Technology (TXT) Enable Intel Trusted Execution Specifies whether a measured Virtual Machine Monitor (MVMM) can utilize Technology (TXT) the additional hardware capabilities provided by Intel Trusted Execution Technology. By default, the option is disabled. Table 39.

  • Page 125: Updating The Bios

    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 126: System And Setup Password

    ● USB drive formatted to the FAT32 file system (key does not have to be bootable) ● BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive ● AC power adapter that is connected to the computer ●...

  • Page 127: Deleting Or Changing An Existing System Setup Password

    2. Wait for one minute. 3. Follow the procedures and post-requisites in Installing the coin-cell battery. 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. BIOS Setup...
  • Page 128 NOTE: For information about how to reset Windows or application passwords, see the documentation accompanying Windows or your application. BIOS Setup...

  • Page 129: Chapter 9: 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 launched by the BIOS internally. The embedded system diagnostics provides options for particular devices or device groups allowing you to: ●...

  • Page 130: System-Diagnostic Lights

    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 131: Real Time Clock-Rtc Reset

    Real Time Clock—RTC reset The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell Latitude and Precision systems from No POST/No Boot/No Power situations. You can initiate the RTC reset on the system from a power-off state only if it is connected to AC power.

  • Page 132: Chapter 10: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 43. Self-help resources  Self-help resources Resource location Information about Dell products and services www.dell.com Tips Contact Support In Windows search, type Contact Support, and press Enter.

This manual is also suitable for:

W31c

Table of Contents

Save PDF