Dell Vostro 14 3440 Owner's Manual
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Dell Vostro 14 3440 Owner's Manual

Dell Vostro 14 3440 Owner's Manual

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Vostro 14 3440
Owner's Manual
Regulatory Model: P185G
Regulatory Type: P185G002
March 2024
Rev. A01

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  • Page 1 Vostro 14 3440 Owner's Manual Regulatory Model: P185G Regulatory Type: P185G002 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

    Left......................................7 Top......................................8 Front....................................... 9 Bottom....................................10 Service Tag...................................11 Battery charge and status light ............................11 Chapter 2: Set up your Vostro 14 3440..................12 Chapter 3: Specifications of Vostro 14 3440.................14 Dimensions and weight..............................14 Processor..................................... 14 Chipset....................................15 Operating system................................15 Memory....................................
  • Page 4 After working inside your computer........................30 BitLocker..................................30 Recommended tools................................. 30 Screw list....................................31 Major components of Vostro 14 3440..........................32 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........34 Base cover..................................34 Removing the base cover............................34 Installing the base cover ............................36 Memory module.................................
  • Page 5 I/O board.....................................63 Removing the I/O board............................63 Installing the I/O board.............................. 64 Power button..................................66 Removing the power button ............................66 Installing the power button ............................67 Power button with optional fingerprint reader......................68 Removing the power button with optional fingerprint reader .................68 Installing the power button with optional fingerprint reader ................69 Display assembly................................70 Removing the display assembly ..........................
  • Page 6 Chapter 9: Troubleshooting....................... 122 Handling swollen rechargeable Li-ion batteries......................122 Locate the Service Tag or Express Service Code of your Dell computer ............122 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 123 Running the SupportAssist Pre-Boot System Performance Check.............. 123 Built-in self-test (BIST)..............................123...

  • Page 7: Chapter 1: Views Of Vostro 14 3440

    Views of Vostro 14 3440 Right Figure 1. Right view 1. SD-card slot Reads from and writes to the SD card. The computer supports the following card types: ● Secure Digital (SD) ● Secure Digital High Capacity (SDHC) ● Secure Digital Extended Capacity (SDXC) 2.

  • Page 8: Top

    When the computer is turned on, press the power button to put the computer into sleep state; press and hold the power button for ten seconds to force shut-down the computer. If the power button has a fingerprint reader, place your finger on the power button to log in. Views of Vostro 14 3440...

  • Page 9: Front

    Enables you to video chat, capture photos, and record videos. 2. Camera-status light Turns on when the camera is in use. 3. Microphone Provides digital sound input for audio recording, voice calls, and so on. Views of Vostro 14 3440...

  • Page 10: Bottom

    Connect an Ethernet (RJ45) cable from a router or a broadband modem for network or Internet access, with a transfer rate of 10/100/1000 Mbps. 3. 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. 4. Air vents Air vents provide ventilation for your computer.

  • Page 11: Service Tag

    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 7. Service Tag Battery charge and status light The following table lists the battery charge and status light behavior of your Vostro 14 3440.

  • Page 12: Chapter 2: Set Up Your Vostro 14 3440

    Follow the on-screen instructions to complete the setup. For more information about installing and configuring Ubuntu, search in the Knowledge Base Resource at www.dell.com/support. For Windows: Follow the on-screen instructions to complete the setup. When setting up, Dell Technologies 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 13 This software delivers intelligent features that automatically fine-tune your computer for the best possible audio, power, and performance. Get the most out of your Dell device with intelligent, personalized technology from MyDell. Following are the key features of MyDell: ●...

  • Page 14: Chapter 3: Specifications Of Vostro 14 3440

    ● Maximum: 1.60 kg (3.53 lb) the configuration that is ordered and manufacturing variability. Processor The following table lists the details of the processors that are supported by your Vostro 14 3440. Table 5. Processor  Description Option one Option two...

  • Page 15: Chipset

    ● Intel Iris X Graphics for dual-channel memory for dual-channel memory installed installed Chipset The following table lists the details of the chipset that is supported for your Vostro 14 3440. Table 6. Chipset  Description Values Chipset Integrated with the processor Processor...

  • Page 16: Memory

    Memory The following table lists the memory specifications of your Vostro 14 3440. Table 7. Memory specifications  Description Values Memory slots Two SODIMM slots Memory type DDR5 Memory speed 4400 MT/s Maximum memory configuration 32 GB Minimum memory configuration 8 GB...

  • Page 17: Internal Slots

    Model number Integrated Realtek RTL8111H Transfer rate 10/100/1000 Mbps Wireless module The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Vostro 14 3440. Table 11. Wireless module specifications  Description Values Model number Realtek RTL8851BE...

  • Page 18: Audio

    Single integrated microphone Storage This section lists the storage options on your Vostro 14 3440. Your Vostro 14 3440 supports one M.2 2230 solid-state drive. The M.2 2230 solid-state drive is the primary storage drive of your computer. Table 13. Storage specifications ...

  • Page 19: Keyboard

    The maximum capacity supported by the media-card reader varies depending on the standard of the media card that is installed on your computer. Keyboard The following table lists the keyboard specifications of your Vostro 14 3440. Table 15. Keyboard specifications  Description...
  • Page 20 + Right arrow fn + Up arrow Page up fn + Down arrow Page down fn + Power button Boot directly to e-Diags Diagnostics fn + Copilot Open the application menu fn + En/Ko (Korean) Hanja Specifications of Vostro 14 3440...

  • Page 21: Camera

    For more information about touchpad gestures available on Windows, see the Microsoft Knowledge Base article at support.microsoft.com. Power adapter The following table lists the power adapter specifications of your Vostro 14 3440. Table 20. Power adapter specifications  Description Values Type...

  • Page 22: Battery

    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. Battery The following table lists the battery specifications of your Vostro 14 3440. Table 21. Battery specifications  Description...

  • Page 23: Display

    If your battery charge is depleted, connect the power adapter, turn on your computer, and then restart your computer to reduce the power consumption. Display The following table lists the display specifications of your Vostro 14 3440. Table 22. Display specifications  Description...

  • Page 24: Fingerprint Reader (Optional)

    The following table lists the sensor of your Vostro 14 3440. Table 24. Sensor  Sensor support Adaptive Thermal Performance Accelerometer GPU—Integrated The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Vostro 14 3440. Table 25. GPU—Integrated  Controller Memory size Processor...

  • Page 25: Multiple Display Support Matrix

    Shared system memory 13th Gen Intel Core i5-1335U and i5-1334U processors Multiple display support matrix The following table lists the multiple display support matrix for your Vostro 14 3440. Table 26. Multiple display support matrix  Graphics Card Direct Graphics Controller...

  • Page 26: Dell Support Policy

    ComfortView mode can be enabled and configured using the Dell CinemaColor application. ComfortView mode complies with TÜV Rheinland's requirement for low blue light displays. Low blue light: Dell ComfortView software technology reduces harmful blue light emissions to make extended screen time easy on your eyes.

  • Page 27: 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 28: Safety Precautions

    Ensure that your computer is shut down and the AC adapter is disconnected. a. Hold the <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen. b. Press any key to continue.

  • Page 29: Esd Field Service Kit

    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. Two recognized types of ESD damage are catastrophic and intermittent failures.

  • Page 30: 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 31: Screw List

    Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, and 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 32: Major Components Of Vostro 14 3440

    Table 29. Screw list (continued) Component Screw type Quantity Screw image System board M2x2 Major components of Vostro 14 3440 The following image shows the major components of Vostro 14 3440. Figure 9. Major components of your Vostro 14 3440 Working inside your computer...
  • Page 33 NOTE: Dell Technologies 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. Working inside your computer...

  • Page 34: 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. Base cover Removing the base cover Prerequisites...
  • Page 35 Figure 10. Removing the base cover Removing and installing Customer Replaceable Units (CRUs)

  • Page 36: Installing The Base Cover

    Figure 11. Removing the base cover Steps 1. Loosen the two captive screws and remove the six screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 2. Using a plastic scribe, pry open the base cover starting from the recesses, which are located in the U-shaped indents at the top edge of the base cover, near the hinges.
  • Page 37 Figure 12. Installing the base cover Removing and installing Customer Replaceable Units (CRUs)

  • Page 38: Memory Module

    Figure 13. Installing the base cover Steps 1. Place the base cover on top of the palm-rest and keyboard assembly. 2. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly, and snap the base cover latches into place.

  • Page 39: Installing The Memory Module

    Figure 14. Removing the memory module Steps 1. Gently pull the memory-module retention clips away from the memory module until the memory module pops-up. 2. Hold the memory module and remove it from the memory-module slot (DIMM1 or DIMM2, whichever is applicable) on the system board.

  • Page 40: Solid-State Drive

    Figure 15. Installing the memory module Steps 1. Align the notch on the memory module with the tab on the memory-module slot (DIMM1 or DIMM2, whichever is applicable) on the system board. 2. Slide the memory module firmly into the memory-module slot at an angle. 3.

  • Page 41: Installing The Solid-State Drive

    Figure 16. Removing the solid-state drive Steps 1. Remove the screw (M2x3) that secures the solid-state drive bracket to the palm-rest and keyboard assembly. 2. Slide and remove the solid-state drive bracket, along with the solid-state drive, from the M.2 card slot (SSD1) on the system board.

  • Page 42: Wireless Card

    Figure 17. Installing the solid-state drive Steps 1. Align the round notch on the solid-state drive with the screw hole on the solid-state drive bracket. 2. Replace the screw (M2x2) to secure the solid-state drive to the solid-state drive bracket. 3.

  • Page 43: Installing The Wireless Card

    Figure 18. Removing the wireless card Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the system board. 2. Lift the wireless-card bracket off the wireless card. 3. Disconnect the wireless-antenna cables from the connectors on the wireless card. 4.
  • Page 44 Figure 19. Installing the wireless card Steps 1. Align the notch on the wireless card to the tab on the wireless-card slot (WLAN1) on the system board. 2. Slide the wireless card at an angle into the wireless-card slot on the system board. 3.

  • Page 45: Fan

    Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following image indicates the location of the fan and provides a visual representation of the removal procedure. Figure 20.
  • Page 46 About this task The following image indicates the location of the fan and provides a visual representation of the installation procedure. Figure 21. Installing the fan Steps 1. Place the fan in the slot on the palm-rest and keyboard assembly. 2.

  • Page 47: Chapter 6: Removing And Installing Field Replaceable Units (Frus)

    ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a rechargeable Li-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.

  • Page 48: Installing The Battery

    Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following image indicates the location of the battery and provides a visual representation of the removal procedure. Figure 22. Removing the battery Steps 1.

  • Page 49: Disconnecting The Battery Cable

    Figure 23. Installing the battery Steps 1. Place the battery, along with the battery cable, in the slot on the palm-rest and keyboard assembly. NOTE: Ensure that the bottom edge of the battery is placed at an angle under the tabs on the palm-rest and keyboard assembly.

  • Page 50: Connecting The Battery Cable

    Figure 24. Disconnecting the battery cable Steps 1. Unroute the battery cable from the routing guides on the battery. 2. Open the latch and disconnect the battery cable from the connector on the battery. CAUTION: Do not pull the battery cable to disconnect it from the battery, it may damage the battery or the battery cable.

  • Page 51: Heat Sink

    Figure 25. Connecting the battery cable Steps 1. Connect the battery cable to the connector on the battery and close the latch. 2. Route the battery cable through the routing guides on the battery. Next steps 1. Install the battery. 2.

  • Page 52: Installing The Heat Sink

    Figure 26. Removing the heat sink Steps 1. In reverse sequential order (4 > 3 > 2 > 1) , loosen the four captive screws that secure the heat sink to the system board. The screw numbers are etched on the heat sink. 2.

  • Page 53: Speakers

    Figure 27. Installing the heat sink Steps 1. Place the heat sink in the slot on the system board. 2. Align the screw holes on the heat sink with the screw holes on the system board. 3. In sequential order (1 > 2 > 3 > 4), tighten the four captive screws to secure the heat sink to the system board. The screw numbers are etched on the heat sink.

  • Page 54: Installing The Speakers

    Figure 28. Removing the speakers Steps 1. Open the latch and disconnect the touchpad cable from the connector (TP1) on the system board. 2. Disconnect the speaker cable from the connector (SPK1) on the system board. 3. Unroute and remove the speaker cable from the routing guides on palm-rest and keyboard assembly. 4.
  • Page 55 The following images indicate the location of the speakers and provide a visual representation of the installation procedure. Figure 29. Installing the speakers Steps 1. Using the alignment posts and rubber grommets, place the speakers in the slots on the palm-rest and keyboard assembly. NOTE: Ensure that the rubber grommets on the speakers are threaded through the alignment posts and the four rubber grommets are seated into the slot and installed on the speakers properly.

  • Page 56: Touchpad

    Touchpad Removing the touchpad CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The following images indicate the location of the touchpad and provide a visual representation of the removal procedure.

  • Page 57: Installing The Touchpad

    2. Remove the two screws (M2x1.8) and four screws (M1.6x2.5) that secure the touchpad assembly to the palm-rest and keyboard assembly. 3. Lift the touchpad, along with the touchpad cable, off the palm-rest and keyboard assembly. Installing the touchpad CAUTION: The information in this installation section is intended for authorized service technicians only.

  • Page 58: Power-Adapter Port

    Steps 1. Align and place the touchpad, along with the touchpad FFC, in the slot on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x1.8) and four screws (M1.6x2.5) to secure the touchpad assembly to the palm-rest and keyboard assembly.

  • Page 59: Installing The Power-Adapter Port

    Steps 1. Remove the two screws (M2.5x4) that secure the right display hinge to the system board and the palm-rest and keyboard assembly. 2. Using a plastic scribe, lift the right display hinge to an angle of 90 degrees from the palm-rest and keyboard assembly to access the power-adapter port.

  • Page 60: I/O-Board Cable

    NOTE: The power-adapter port is secured in place by the right display hinge. There is no screw, tape, or adhesives securing the power-adapter port to the palm rest. As a result, technicians should take note of whether the power- adapter port has fallen out of the computer during subsequent removal procedures. 2.

  • Page 61: Installing The I/O-Board Cable

    Figure 34. Removing the I/O-board cable Steps 1. Open the latch and disconnect the I/O-board cable from the connector (IOBD1) on the system board. 2. Open the latch and disconnect the I/O-board cable from the connector on the I/O board. 3.
  • Page 62 About this task The following image indicates the location of the I/O-board cable and provides a visual representation of the installation procedure. Figure 35. Installing the I/O-board cable Steps 1. Place the I/O-board cable on the palm-rest and keyboard assembly. NOTE: Carefully slide the I/O-board cable underneath the wireless-antenna cables to place the I/O-board cable on the palm-rest and keyboard assembly.

  • Page 63: I/O Board

    I/O board Removing the I/O board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the fan. About this task The following images indicate the location of the I/O board and provide a visual representation of the removal procedure.

  • Page 64: Installing The I/O Board

    2. Using a plastic scribe, lift the left display hinge to an angle of 90 degrees from the palm-rest and keyboard assembly to access the I/O board. 3. Remove the two screws (M2x4) that secure the RJ45-holder to the palm-rest and keyboard assembly. 4.
  • Page 65 Figure 37. Installing the I/O board Steps 1. Align the ports on the I/O board with the port slots and place the I/O board on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O board with the screw holes on the palm-rest and keyboard assembly. 3.

  • Page 66: Power Button

    2. Install the base cover. 3. Follow the procedure in After working inside your computer. Power button Removing the power button CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 67: Installing The Power Button

    Installing the power button 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 procedure. About this task The following image indicates the location of the power button and provides a visual representation of the installation procedure.

  • Page 68: Power Button With Optional Fingerprint Reader

    Power button with optional fingerprint reader Removing the power button with optional fingerprint reader CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.

  • Page 69: Installing The Power Button With Optional Fingerprint Reader

    3. Lift the power button with optional fingerprint reader off the slot on the palm-rest and keyboard assembly. Installing the power button with optional fingerprint reader 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 procedure.

  • Page 70: Display Assembly

    Next steps 1. Install the board. 2. Install the fan. 3. Install the base cover. 4. Follow the procedure in After working inside your computer. Display assembly Removing the display assembly CAUTION: The information in this removal section is intended for authorized service technicians only. CAUTION: The maximum operating angle for the display-panel hinge is 135 degrees.
  • Page 71 Figure 43. Removing the display assembly Removing and installing Field Replaceable Units (FRUs)

  • Page 72: Installing The Display Assembly

    Figure 44. Display assembly Steps 1. Disconnect the display cable from the connector (LCD) on the system board. 2. Remove the four screws (M2.5x4) that secure the display hinges to the palm-rest and keyboard assembly. 3. Using a plastic scribe, lift the left and right hinges to an angle of 90 degrees from the palm-rest and keyboard assembly. 4.
  • Page 73 About this task NOTE: Ensure that the display hinges are opened to the maximum before replacing the display assembly on the palm-rest and keyboard assembly. The following images indicate the location of the display assembly and provide a visual representation of the installation procedure.

  • Page 74: Display Bezel

    Figure 46. Installing the display assembly Steps 1. Place the display assembly on a clean and flat surface. 2. Hold the palm-rest and keyboard assembly at an angle and slide the palm-rest and keyboard assembly under the display hinges. CAUTION: To avoid damaging the display, do not slide the palm-rest and keyboard assembly over the display assembly.
  • Page 75 2. Remove the base cover. 3. Remove the solid-state drive. 4. Remove the wireless card. 5. Remove the display assembly. About this task NOTE: The display-hinge caps are a part of the display bezel. The following image indicates the location of the display bezel and provides a visual representation of the removal procedure. Figure 47.
  • Page 76 Figure 48. Removing the display bezel Figure 49. Removing the display bezel Steps 1. Place the display assembly on a clean, flat surface and gently open the display hinges to at least 90 degrees. 2. Using a plastic scribe, pry open the left display-hinge cap from its right side and pry open the right display-hinge cap from its left side.

  • Page 77: Installing The Display Bezel

    3. Using a plastic scribe, carefully pry open the outer edge at the base of the display bezel. 4. Using a plastic scribe, gently pry open the outside edge of the left, right, and top sides of the display bezel. 5.
  • Page 78 Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task NOTE: The display-hinge caps are a part of the display bezel. The following image indicates the location of the display bezel and provides a visual representation of the installation procedure. Figure 51.

  • Page 79: Display Panel

    Figure 52. Installing the display bezel Steps 1. Place the display assembly on a clean and flat surface. 2. Align and place the display bezel on the display assembly. 3. Press the display-hinge caps down on the display hinges, until they click in place. 4.
  • Page 80 About this task NOTE: The display panel is assembled with the display brackets and display hinges as a single service part. The following images indicate the location of the display panel and provide a visual representation of the removal procedure. Figure 53.
  • Page 81 Figure 54. Removing the display panel Figure 55. Removing the display panel Removing and installing Field Replaceable Units (FRUs)
  • Page 82 Figure 56. Removing the display panel Steps 1. Remove the six screws (M2.5x2.5) that secure the display hinges to the display back-cover and antenna assembly. 2. Using a plastic scribe, pry the display hinges from the corners to release them from the display back-cover and antenna assembly.

  • Page 83: Installing The Display Panel

    Figure 57. Removing the display panel Installing the display panel 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 procedure. About this task NOTE: The display panel is assembled with the display brackets and display hinges as a single service part.
  • Page 84 Figure 58. Installing the display panel Removing and installing Field Replaceable Units (FRUs)
  • Page 85 Figure 59. Installing the display panel Figure 60. Installing the display panel Removing and installing Field Replaceable Units (FRUs)

  • Page 86: Display Cable

    Figure 61. Installing the display panel Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector on the display panel and close the latch. 3. Adhere the tape to secure the display cable to the connector on the display panel. 4.

  • Page 87: Installing The Display Cable

    About this task The following image indicates the location of the display cable and provides a visual representation of the removal procedure. Figure 62. Removing the display cable Steps 1. Disconnect the display eDP cable from the connector on the camera module. 2.
  • Page 88 Figure 63. Installing the display cable Steps 1. Adhere the display eDP cable to the display back-cover and antenna assembly. 2. Connect the display eDP cable to the connector on the camera module. Next steps 1. Install the display panel. 2.

  • Page 89: Camera

    Camera Removing the camera CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the solid-state drive. 4. Remove the wireless card.

  • Page 90: Display Back-Cover And Antenna Assembly

    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 camera module and provide a visual representation of the installation procedure. Figure 65. Installing the camera Steps 1.

  • Page 91: Installing The Display Back-Cover And Antenna Assembly

    2. Remove the base cover. 3. Remove the solid-state drive. 4. Remove the wireless card. 5. Remove the display assembly. 6. Remove the display bezel. 7. Remove the display panel. 8. Remove the display cable. 9. Remove the camera. About this task NOTE: The display back-cover and antenna assembly cannot be further disassembled once all the Prerequisites are completed.

  • Page 92: System Board

    About this task The following image indicates the location of the display back-cover and antenna assembly and provides a visual representation of the installation procedure. Figure 67. Display back-cover and antenna assembly Steps Place the display back-cover and antenna assembly on a flat surface and perform the Next steps to install the display back-cover and antenna assembly.
  • Page 93 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the memory module. 4. Remove the solid-state drive. 5. Remove the wireless card. 6. Remove the fan. 7. Remove the battery. 8. Remove the heat sink.
  • Page 94 12. M.2 solid-state drive connector (SSD1) The following images indicate the location of the system board and provide a visual representation of the removal procedure. Figure 69. Removing the system board Steps 1. Remove the two screws (M2.5x4) that secure the right display hinge to the system board and the palm-rest and keyboard assembly.
  • Page 95 Figure 70. Removing the system board 4. Remove the three screws (M2x4) that secure the USB Type-C bracket to the system board. 5. Remove the two screws (M2x2) that secure the system board to the palm-rest and keyboard assembly. Removing and installing Field Replaceable Units (FRUs)

  • Page 96: Installing The System Board

    Figure 71. Removing the system board 6. Carefully lift and remove the system board at angle, from the palm-rest and keyboard assembly, to clear the ports from the port slots. 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 procedure.
  • Page 97 Figure 72. System board connectors 1. Fan cable connector (FAN1) 2. Wireless card connector (WLAN1) 3. Memory module connectors (DIMM1 and DIMM2) 4. eDP cable connector (LCD) 5. Power-adapter port connector (DCIN1) 6. Keyboard-backlight cable connector (KBBL1) 7. Keyboard cable connector (KB1) 8.
  • Page 98 Figure 73. Installing the system board Steps 1. Align the ports on the system board to the port slots and place the system board on the palm-rest and keyboard assembly. 2. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 3.
  • Page 99 6. Connect the following cables to the system board: a. I/O-board cable (IODB1) b. eDP cable (LCD) c. Power-adapter port cable (DCIN1) d. Keyboard cable (KB1) e. Keyboard-backlight cable (KBBL1) NOTE: This step applies only to computers shipped with a keyboard backlight installed. f.

  • Page 100: Palm-Rest And Keyboard Assembly

    Figure 76. Installing the system board Next steps 1. Install the heat sink. 2. Install the battery. 3. Install the fan. 4. Install the wireless card. 5. Install the solid-state drive. 6. Install the memory module. 7. Install the base cover.

  • Page 101: Installing The Palm-Rest And Keyboard Assembly

    About this task NOTE: The palm-rest and keyboard assembly cannot be further disassembled once all the Prerequisites are completed. If the keyboard is malfunctioning and is required to be replaced, replace the entire palm-rest and keyboard assembly. The image below shows the palm-rest and keyboard assembly after the Prerequisites have been performed. Figure 77.
  • Page 102 Figure 78. Palm-rest and keyboard assembly Steps Place the palm-rest and keyboard assembly on a flat surface and perform the Next steps to install the palm-rest and keyboard assembly. Next steps 1. Install the system board. 2. Install the display assembly.

  • Page 103: Chapter 7: Software

    ● Windows 11 Pro ● Windows 11 Pro National Education ● 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 104: 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 105: System Setup Options

    Depending on your computer and its installed devices, the items that are listed in this section may or may not be displayed. Table 32. System setup options—Overview menu  Overview Vostro 14 3440 BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the computer.
  • Page 106 The computer stops booting to the operating system when a component is not authenticated during the boot process. Secure Boot can be enabled in BIOS setup or using management interfaces like Dell Command|Configure, but can only be disabled from BIOS setup.
  • Page 107 Table 33. System setup options—Boot Configuration menu (continued) Boot Configuration 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. NOTE: For Secure Boot to be enabled, the computer is required to be in UEFI boot mode and the Enable Legacy Option ROMs option is required to be turned off.
  • Page 108 Table 34. System setup options—Integrated Devices menu (continued) Integrated Devices NOTE: Depending on the configuration ordered, the microphone setup option may not be available. Enable Internal Speaker Enables the internal speaker. By default, the Enable Intenal Speaker option is enabled. USB Configuration Enable External USB Ports Enables the external USB ports.
  • Page 109 Table 36. System setup options—Display menu (continued) Display By default, the screen brightness is set to 100 when the computer is running on AC power. Full Screen Logo Enables or disables the computer to display a full-screen logo, if the image matches screen resolution.
  • Page 110 Sleep. Lid Switch Enable Lid Switch When enabled, connecting a Dell USB-C Dock wakes the computer from Standby, Hibernate, and Power Off. By default, the Enable Lid Switch option is enabled. Intel Speed Shift Technology Enables or disables the Intel Speed Shift Technology support.
  • Page 111 By default, the Start Data Wipe option is disabled. Absolute Absolute Software provides various cyber security solutions, some requiring software preloaded on Dell computers and integrated into the BIOS. To use these BIOS Setup...
  • Page 112 Password prompt. ● The computer password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the computer password in situations where it is likely that a computer may be lost or stolen. M.2 PCIe SSD-0 The M.2 PCIe SSD-0 Password can be set to prevent unauthorized access of the...
  • Page 113 BIOS passwords. You can modify the minimum and maximum length of the passwords and 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 eight characters. Upper Case Letter The Upper Case Letter field enforces stricter rules for administrator and system passwords.
  • Page 114 This gives an administrator control over the BIOS settings but enables an end user to provide their own password. By default, the Allow Non-Admin Password Changes option is enabled. For additional security, Dell Technologies recommends keeping the Allow Non- Admin Password Changes option disabled. Admin Setup Lockout...
  • Page 115 Allows you to control the automatic boot flow for SupportAssist System Resolution Console and for Dell operating system Recovery Tool. By default, the Dell Auto OS Recovery Threshold value is set to 2. Table 42. System setup options—System Management menu ...
  • Page 116 Table 42. System setup options—System Management menu (continued) System Management Diagnostics OS Agent Requests Enables or disables the computer to turn on by a special LAN signal. By default, the OS Agent Requests option is enabled. Power-on-Self-Test Automatic Enables or disables the computer to turn on by a special LAN signal. Recovery By default, the Power-on-Self-Test Automatic Recovery option is enabled.
  • Page 117 This option is not available when the virtualization setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Enable Pre-Boot DMA Support option is enabled. For additional security, Dell Technologies recommends keeping the Enable Pre- Boot DMA Support option enabled. NOTE: This option is provided only for compatibility purposes, as certain older hardware may not be DMA compliant.

  • Page 118: Updating The Bios

    For more information about this subject, search in the Knowledge Base Resource at www.dell.com/support. 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. BIOS Setup...

  • Page 119: Updating The Bios In Linux And Ubuntu

    Updating the BIOS in Windows to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information, search in the Knowledge Base Resource at www.dell.com/support. 3. Copy the BIOS setup program file to the bootable USB drive.

  • Page 120: System And Setup Password

    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 121: Deleting Or Changing An Existing System Setup Password

    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 about how to reset Windows or application passwords, see the documentation accompanying Windows or your application.

  • Page 122: Chapter 9: Troubleshooting

    ● Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

  • Page 123: Dell Supportassist Pre-Boot System Performance Check Diagnostics

    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 124: Lcd Power Rail Test (L-Bist)

    LCD Built-in Self-Test (BIST) Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and computer settings.

  • Page 125: System-Diagnostic Lights

    The following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems. 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. Table 50. System-diagnostic lights ...
  • Page 126 NOTE: Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Num-Lock), Power button LED (without Fingerprint reader), and Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance Check diagnostics. Camera status light: Indicates whether the camera is in use.

  • Page 127: Recovering The Operating System

    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 128 6. Install the battery. 7. Install the base cover. 8. Connect the power adapter to your computer. 9. Turn on your computer. NOTE: For more information about performing a hard reset, search in the Knowledge Base Resource at www.dell.com/ support. Troubleshooting...

  • Page 129: 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 51. 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.

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