Dell P175G Owner's Manual
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Dell P175G Owner's Manual

Dell P175G Owner's Manual

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Latitude 7450
Owner's Manual
Regulatory Model: P174G/P174G/P175G/P176G
Regulatory Type: P174G001/P174G002/P175G002/P176G002
March 2024
Rev. A00

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Summary of Contents for Dell P175G

  • Page 1 Latitude 7450 Owner's Manual Regulatory Model: P174G/P174G/P175G/P176G Regulatory Type: P174G001/P174G002/P175G002/P176G002 March 2024 Rev. A00...
  • 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

    Power adapter..................................28 Battery....................................29 Display....................................30 Fingerprint reader (Optional)............................31 Sensor ....................................32 GPU—Integrated................................32 Multiple display support matrix............................32 Hardware security................................33 Smart-card reader................................33 Contactless smart-card reader..........................33 Contacted smart-card reader...........................35 Operating and storage environment..........................36 Dell support policy................................36 Contents...
  • Page 4 Chapter 5: Working inside your computer..................37 Safety instructions................................37 Before working inside your computer........................37 Safety precautions..............................38 Electrostatic discharge—ESD protection......................38 ESD Field Service kit ..............................39 Transporting sensitive components........................40 BitLocker..................................40 After working inside your computer........................40 Recommended tools................................. 40 Screw list....................................41 Major components of Latitude 7450..........................
  • Page 5 Removing the heat-sink with fan..........................76 Installing the heat-sink with fan..........................76 Display assembly................................77 Removing the display assembly ..........................77 Installing the display assembly ..........................81 Smart card reader................................84 Removing the smart card reader ..........................84 Installing the smart card reader ..........................85 System board..................................87 Removing the system board ............................
  • Page 6 Clearing Chassis Intrusion Alerts..........................136 Chapter 11: Troubleshooting.......................139 Handling swollen rechargeable Li-ion batteries......................139 Locate the Service Tag or Express Service Code of your Dell computer ............139 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 140 Running the SupportAssist Pre-Boot System Performance Check.............. 140 Built-in self-test (BIST)..............................140...

  • Page 7: Chapter 1: Introduction

    The document informs the field service technicians of the proper steps for replacing hardware and also gives an overview of the system BIOS, features, and safety precautions. To contact Dell regarding issues with this reference material, write to Educate@dell.com. Introduction...

  • Page 8: Chapter 2: Views Of Latitude 7450

    Views of Latitude 7450 Right Figure 1. Right view 1. NanoSIM slot (optional) Insert a nano-SIM card to connect to a mobile broadband network. NOTE: Availability of the nano-SIM card slot depends on the region and configuration ordered. 2. Universal audio port Connect headphones or a headset (headphone and microphone combo).

  • Page 9: Left

    Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4. NOTE: You can connect a Dell Docking Station to one of the Thunderbolt 4 ports. For more information, search in the Knowledge Base Resource at www.dell.com/support.

  • Page 10: Front

    Front Figure 3. Image: Front view 1. Infrared camera (optional) Enhances security when paired with Windows Hello face authentication. 2. Infrared LED Emits infrared light, which enables the infrared camera to sense and track motion. 3. RGB Camera Enables you to video chat, capture photos, and record videos. 4.

  • Page 11: Top

    Figure 4. Image: Top view 1. Dual-array microphone Provides digital sound input for audio recording and voice calls. 2. Camera shutter Slide the privacy shutter to the left to access the camera lens. 3. Dual-array microphone Provides digital sound input for audio recording and voice calls. 4.

  • Page 12: Bottom

    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. 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. Views of Latitude 7450...
  • Page 13 Figure 6. Image: Service Tag location Views of Latitude 7450...

  • Page 14: Modes

    Modes The following modes are applicable for your 2-in-1 computers. Notebook Figure 7. Image: Notebook mode Views of Latitude 7450...
  • Page 15 Tablet Figure 8. Image: Tablet mode Views of Latitude 7450...
  • Page 16 Stand Figure 9. Image: Stand mode Views of Latitude 7450...

  • Page 17: Battery Charge And Status Light

    Tent Figure 10. Image: Tent mode Battery charge and status light The following table lists the battery charge and status light behavior of your Latitude 7450. Table 1. Battery charge and status light behavior  Power Source LED Behavior System Power State Battery Charge Level AC Adapter S0 - S5...

  • Page 18: Chapter 3: Set Up Your Latitude 7450

    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 19 Description Dell Command Update Updates your computer with critical fixes and latest device drivers as they become available. For more information about using Dell Command 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 4: Specifications Of Latitude 7450

    Specifications of Latitude 7450 Dimensions and weight The following table lists the height, width, depth, and weight of your Latitude 7450. Table 4. Dimensions and weight  Description Laptop-Mainstream 2-in-1 Laptop-Ultralight Height: Front height 17.10 mm (0.67 in.) 17.15 mm (0.68 in.) 17.10 mm (0.67 in.) Rear height 18.21 mm (0.72 in.)

  • Page 21: Chipset

    Table 5. Processor (continued) Description Option one Option two Option three Option four Option five Option six P-Core 4.6 GHz 4.3 GHz 4.4 GHz 4.8 GHz 5.0 GHz 4.9 GHz Maximum turbo frequency E-Core base 1.2 GHz 0.8 GHz 1.1 GHz 1.2 GHz 0.9 GHz 1.2 GHz...

  • Page 22: External Ports

    ● One M.2 2230 slot for solid-state drive ● One M.2 3042 slot for WWAN Card (optional) NOTE: To learn more about the features of different types of M.2 cards, search in the Knowledge Base Resource at www.dell.com/support. Specifications of Latitude 7450...

  • Page 23: Wireless Module

    Wireless module The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Latitude 7450. Table 10. Wireless module specifications  Description Values Model number Intel BE200 (integrated on system board) Transfer rate 5760 Mbps Frequency bands supported 2.40 GHz/5 GHz/6 GHz Wireless standards ●...

  • Page 24: Audio

    ● Supports 4x4 MIMO NOTE: For instructions on how to find your computer's International Mobile Station Equipment Identity (IMEI) number, search in the Knowledge Base Resource at www.dell.com/support. Audio The following table lists the audio specifications of your Latitude 7450.

  • Page 25: Storage

    Table 12. Audio specifications (continued) Description Values Peak speaker output 2.5W Subwoofer output Not supported Microphone Camera module above LCD Storage This section lists the storage options on your Latitude 7450. Your computer supports the following storage configurations: ● One M.2 2230 solid state drive The M.2 2230 solid state drive is the primary drive of your computer.

  • Page 26: Camera

    Table 14. Keyboard specifications (continued) Description Values more information about Copilot in Windows, search in the Knowledge Base Resource at www.dell.com/support. Camera The following table lists the camera specifications of your Latitude 7450. Table 15. Camera specifications  Description Option one Option two...

  • Page 27: Clickpad With Collaboration Controls

    To enjoy the collaboration touchpad (CTP) controls feature on your keyboard, ensure that you have the latest versions of the Dell Optimizer app and Zoom or Teams for work or school installed on your computer. Dell Optimizer offers Specifications of Latitude 7450...

  • Page 28: Power Adapter

    Install the collaboration touchpad module within the Dell Optimizer app to enjoy the functionality of collaboration controls. For more information, search for the Dell Optimizer User ‘s Guide in the Knowledge Base Resource at www.dell.com/support.

  • Page 29: Battery

    0 to end time, and so on RSOC is 4 hours is 4 hours 100% RSOC is 4 100% RSOC is 4 using the Dell Power ● 16 - 45°C normal ● 16 - 45°C normal hours hours express charge express charge Manager application.

  • Page 30: Display

    CAUTION: Dell recommends that you charge the battery regularly for optimal power consumption. If your battery charge is completely depleted, connect the power adapter, turn on your computer, and then restart your computer to reduce the power consumption.

  • Page 31: Fingerprint Reader (Optional)

    Table 20. Display specifications (continued) Description Option one Option two Option three Option four Option five Diagonal 355.65 mm 355.65 mm (14.00 355.65 mm (14.00 355.65 mm (14.00 355.65 mm (14.00 in.) in.) in.) in.) (14.00 in.) Display-panel native 1920 x 1200 1920 x 1200 1920 x 1200 1920 x 1200...

  • Page 32: Sensor

    Table 21. Fingerprint reader specifications (continued) Description Option One Option two Fingerprint-reader ● X: 108 ● X: 96 sensor pixel size ● Y: 88 ● Y: 96 Sensor The following table lists the sensor of your Latitude 7450. Table 22. Sensor  Sensor support Accelerometer (ST Micro LIS2DW12TR): On the base (system board) for both laptop and 2-in-1 computer Accelerometer + Gyro (ST Micro LSM6DSOUSTR): On the hinge-up sensor board for 2-in-1 computer...

  • Page 33: Hardware Security

    This section lists the contactless smart-card reader specifications of your Latitude 7450. This module is only available in computers shipped with Smart-card readers. Table 26. Contactless smart-card reader specifications  Title Description Dell ControlVault 3 contactless smart-card reader with NFC Felica Card Support Reader and software capable of supporting Felica contactless cards...
  • Page 34 Circuit Card Interface Device for OS level drivers Windows Certified Device certified by Microsoft WHCK Dell ControlVault support Device connects to Dell ControlVault for usage and processing FIDO2 compliance Dell ControlVault 3 Smart-card reader is compliant with the FIDO SPEC NOTE: 125 Khz proximity cards are not supported.

  • Page 35: Contacted Smart-Card Reader

    Circuit Card Interface Device for OS level drivers. Windows Certified Device certified by WHCK FIPS 201 (PIV/HSPD-12) Compliant Device compliant with FIPS 201/PIV/ using GSA HSPD-12 requirements FIDO2 compliance Dell ControlVault 3 Smart-card reader is compliant with the FIDO SPEC. Specifications of Latitude 7450...

  • Page 36: Operating And Storage Environment

    * Measured using a random vibration spectrum that simulates the user environment. † Measured using a 2 ms half-sine pulse. Dell support policy For information about Dell support policy, search in the Knowledge Base Resource at www.dell.com/support. Specifications of Latitude 7450...

  • Page 37: Chapter 5: 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 38: Safety Precautions

    Ensure that your computer is shut down and the AC adapter is disconnected. a. Hold <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 39: 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 40: 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 41: 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 42: Major Components Of Latitude 7450

    Table 30. Screw list (continued) Component Screw type Quantity Screw image Smart card reader M2x2 System board M2x2 I/O daughterboard M2x2 I/O daughterboard bridge M2x4 connector Power button M1.6x1.7 Keyboard support plate M1.6x1.7 Keyboard support plate to M1.6x1.7 palmrest Keyboard to palmrest M1.6x1.4 Major components of Latitude 7450 The following image shows the major components of Latitude 7450.
  • Page 43 Figure 12. Major Components of Latitude 7450 1. Base cover 2. Battery 3. Antenna 4. Bracket 5. Coin-cell battery 6. Solid-state drive shield 7. Solid-state drive 8. System board 9. Speaker 10. Smartcard reader 11. Palm-rest and keyboard assembly Working inside your computer...
  • Page 44 22. SIM card tray NOTE: Dell provides a list of components and their part numbers for the original computer configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.

  • Page 45: Chapter 6: 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. NanoSIM-card tray Removing the nanoSIM-card tray Prerequisites...
  • Page 46 Figure 13. Removing the SIM-card tray Steps 1. Insert a pin into the release hole of the nanoSIM-card tray and push inward until the tray is released. 2. Slide the nanoSIM-card tray out of the slot on the computer. 3. Remove the SIM card from the nanoSIM-card tray. 4.

  • Page 47: Installing The Nanosim-Card Tray

    Figure 14. I/O daughterboard Removal Installing the nanoSIM-card tray 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 nanoSIM-card tray and provide a visual representation of the installation procedure.

  • Page 48: Base Cover

    Figure 15. Installing SIM-card tray Steps 1. Insert a pin into the hole of the nanoSIM-card tray and push inward until the tray is released. 2. Slide the nanoSIM-card tray out of the slot on the computer. 3. Place the SIM card into the nanoSIM-card tray with the metallic contact facing up. 4.
  • Page 49 About this task The following images indicate the location of the base cover and provide a visual representation of the removal procedure. Figure 16. Removing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 50 Figure 17. Removing the base cover Figure 18. Removing the base cover Steps 1. Loosen the eight captive screws 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 51: Installing The Base Cover

    Installing the base cover 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 base cover and provide a visual representation of the installation procedure. Figure 19.

  • Page 52: Solid-State Drive

    Figure 21. 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 53: Installing The M.2 2230 Solid State Drive

    2. Remove the base cover. About this task NOTE: The M.2 card that is installed on your computer depends on the configuration ordered. Supported card configurations on the M.2 card slot are: ● M.2 2230 SSD The following image indicates the location of the M.2 2230 SSD and provides a visual representation of the removal procedure. Figure 22.

  • Page 54: Wireless Wide Area Network (Wwan) Card

    3. Verify if the storage device is installed correctly: a. Turn on or restart your computer. b. Press F2 when the Dell logo is displayed on the screen to enter the computer setup (BIOS) program. NOTE: A list of storage devices are displayed under the System Information in the General group.

  • Page 55: Installing The 4G Wwan Card

    About this task NOTE: This procedure applies only to computers shipped with a 4G WWAN card installed. NOTE: When reinstalling the WWAN card shielding cover, ensure that the shielding cover is inserted into the clips on the I/O daughterboard. NOTE: WWAN card is configured at point of sales for 2-in-1 computers, WWAN card upgrade (CUS Kit) is not available for 2-in-1 computers.

  • Page 56: Removing The 5G Wwan Card

    Figure 25. Installing the 4G WWAN card Steps 1. Align the notch on the 4G WWAN card with the tab on the M.2-card slot on the I/O daughterboard. 2. Slide the 4G WWAN card firmly into the M.2-card slot on the I/O daughterboard. 3.

  • Page 57: Installing The 5G Wwan Card

    Figure 26. Removing the 5G WWAN card Steps 1. Pry the WWAN shielding cover from the top-left side of the shielding cover and remove it from the computer. 2. Lift the 5G WWAN-card bracket off the I/O daughterboard. 3. Remove the single screw (M2x2) that secures the 5G WWAN-card bracket to the I/O daughterboard. 4.
  • Page 58 About this task The following images indicate the location of the 5G WWAN card and provide a visual representation of the installation procedure. Figure 27. Installing the 5G WWAN card Steps 1. Align the notch on the 5G WWAN card with the tab on the M.2-card slot on the I/O daughterboard. 2.

  • Page 59: Speakers

    Figure 28. Installing the 5G WWAN card NOTE: For instructions on how to find your computer's International Mobile Station Equipment Identity (IMEI) number, search in the Knowledge Base Resource at www.dell.com/support. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer.
  • Page 60 Figure 29. Removing the speakers for ultralight Figure 30. Removing the speakers for ultralight Steps 1. Unroute the antenna cables from the routing guide. 2. Disconnect the speaker cable from the connector on the I/O daughterboard. 3. Peel the tape that secures the speaker cable to the palm-rest and keyboard assembly. 4.

  • Page 61: Installing The Speakers For Ultralight

    Installing the speakers for ultralight 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 speakers and provides a visual representation of the installation procedure. Figure 31.

  • Page 62: Removing The Speakers For Mainstream

    NOTE: If the rubber grommets are pushed out during speaker removal, make sure to reinsert them before reinstalling the speakers. 3. Route the speaker cable along the bottom side of the palm-rest and keyboard assembly. Then secure the speaker cable into the routing guides on the palm-rest and keyboard assembly.

  • Page 63: Installing The Speakers For Mainstream

    Installing the speakers for mainstream 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 speakers and provides a visual representation of the installation procedure. Figure 34.

  • Page 64: Installing The Coin-Cell Battery

    CAUTION: Removing the coin-cell battery resets the BIOS setup program's settings to default. It is recommended that you note the BIOS setup program's settings before removing the coin-cell battery. 2. Remove the base cover. About this task The following image indicates the location of the coin-cell battery and provides a visual representation of the removal procedure. Figure 35.
  • Page 65 Figure 36. Installing the coin-cell battery Steps 1. Place the coin-cell battery into its slot on the system board. 2. Route the coin-cell battery cable back to the routing guides on the system board. 3. Connect the coin-cell battery cable to the connector on the system board. Next steps 1.

  • Page 66: Chapter 7: 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 67 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 2-cell battery and provides a visual representation of the removal procedure. Figure 37. Removing the 2-cell battery Steps 1.

  • Page 68: Installing The 2-Cell Battery

    Figure 38. Removing the 2-cell battery Installing the 2-cell battery 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 2-cell battery and provides a visual representation of the installation procedure.

  • Page 69: Removing The 3-Cell Battery

    Figure 39. Installing the 2-cell battery Steps 1. Carefully push the battery filler upwards to attach it to the 2-cell battery. 2. Place the 2-cell battery along with the battery cable on the palm-rest and keyboard assembly. 3. Align the screw holes on the 2-cell battery to the screw holes on the palm-rest and keyboard assembly. 4.
  • Page 70 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 3-cell battery and provides a visual representation of the removal procedure. Figure 40. Removing the 3-cell battery Removing and installing Field Replaceable Units (FRUs)

  • Page 71: Installing The 3-Cell Battery

    Figure 41. Removing the 3-cell battery Steps 1. Disconnect the battery cable from the connector on the system board, if it was not disconnected earlier. 2. Loosen the four captive screws that secure the 3-cell battery to the palm-rest and keyboard assembly. 3.
  • Page 72 Figure 42. Installing the 3-cell battery Figure 43. Installing the 3-cell battery Removing and installing Field Replaceable Units (FRUs)

  • Page 73: Battery Cable

    Steps 1. Place the 3-cell battery along with the battery cable on the palm-rest and keyboard assembly. 2. Adhere the tape to secure the battery cable to the battery. 3. Align the screw holes on the 3-cell battery to the screw holes on the palm-rest and keyboard assembly. 4.

  • Page 74: Installing The Battery Cable

    Figure 44. Removing the battery cable Steps 1. Flip the battery and unroute the battery cable from the routing guides on the battery. 2. Disconnect the battery cable from the connector on the battery. 3. Lift the battery cable away from the battery. NOTE: Dummy filler for a 2-cell battery is not required for the lightweight WLAN configuration.
  • Page 75 Figure 45. Installing the battery cable Steps 1. Connect the battery cable to the connector on the battery. 2. Route the battery cable through the routing guides on the battery. Next steps 1. Install the 2-cell battery or the 3-cell battery, whichever is applicable.

  • Page 76: Heat-Sink With Fan

    Heat-sink with fan Removing the heat-sink with fan 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. About this task NOTE: The heat-sink may become hot during normal operation.

  • Page 77: Display Assembly

    Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task NOTE: If either the system board or the heat-sink is replaced, use the thermal grease that is provided in the kit to ensure that thermal conductivity is achieved.
  • Page 78 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the WWAN card. NOTE: This procedure applies only to computers shipped with a WWAN card installed. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. Figure 48.
  • Page 79 Figure 49. Removing the display assembly Figure 50. Removing the display assembly Steps 1. Remove the single screw (M2x2) securing the Darwin antenna cable bracket on the system board. NOTE: The steps from 1 to 4 apply only to computers shipped with a WWAN antenna installed in the display assembly. 2.
  • Page 80 10. Lift the base assembly away from the display assembly. NOTE: The display assembly is a Hinge-Up Design (HUD) assembly and cannot be further disassembled once it is removed from the bottom chassis. If any components in the display assembly are malfunctioning and is required to be replaced, replace the entire display assembly.

  • Page 81: Installing The Display Assembly

    Figure 52. Display assembly with WWAN-antenna cables Installing the display assembly 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: Ensure that the hinges are opened to the maximum before replacing the display assembly on the palm-rest and...
  • Page 82 Figure 53. Installing the display assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 83 Figure 54. Installing the display assembly Figure 55. Installing the display assembly Steps 1. Place the display assembly on a flat surface. 2. Slide the base assembly at an angle and gently press down on the hinges to align the screw holes on the display hinges with screw holes on the system board.

  • Page 84: Smart Card Reader

    9. Connect both the Darwin antenna cables from the respective connectors on the I/O daughterboard. 10. Align and place the Darwin antenna cable bracket on the system board. 11. Replace the single screw (M2x2) that secures the Darwin antenna cable bracket to the system board. NOTE: The steps from 8 to 11 apply only to computers shipped with a WWAN antenna installed in the display assembly.

  • Page 85: Installing The Smart Card Reader

    Figure 56. Removing the smart card reader Steps 1. Open the latch and disconnect the click pad flexible flat cable, keyboard backlight flexible printed circuit, and keyboard flexible printed circuit from the connector on the click pad. 2. Disconnect the smart card reader flexible flat cable from the respective connectors on the click pad. 3.
  • Page 86 The following images indicate the location of the smart card reader and provide a visual representation of the installation procedure. Figure 57. Installing the smart card reader Steps 1. Align and place the smart card reader on the palm-rest and keyboard assembly. 2.

  • Page 87: System Board

    System board Removing the system 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 M.2 2230 solid-state drive.
  • Page 88 Figure 59. Removing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 89 Figure 60. Removing the system board Steps 1. Remove the six screws (M2x4) securing the I/O daughterboard bridge connector board in place. 2. Remove the single screw (M2x2) screw securing the WLAN module bracket in place. 3. Remove the two screws (M2x2) securing the display cable bracket on the system board. 4.

  • Page 90: Installing The System Board

    NOTE: When replacing the system board for the models, the CPU absorber sticker (top side) and CPU bracket absorber (bottom side) must be peeled off and transferred over to the replacement system board. Figure 61. CPU absorber Figure 62. CPU bracket absorber Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only.
  • Page 91 NOTE: When replacing the system board, the CPU absorber sticker adhered onto the system board must be peeled off and transferred over to the replacement system board. Figure 63. System board callout 1. WWAN card 2. LCD connector 3. Touchscreen and IR-camera cable connector 4.
  • Page 92 Figure 64. Installing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 93 Figure 65. Installing the system board Steps 1. Place the system board into the respective slot on the palm-rest and keyboard assembly. NOTE: Transfer the reusable WLAN absorbers to the new system board while replacing the system board. 2. Replace the two screws (M2.2x5) and three screws (M2x4) securing the system board in place. 3.

  • Page 94: Wlan-Antenna Module

    5. Follow the procedure in After working inside your computer. WLAN-antenna module Removing the WLAN-antenna module 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 95 Figure 66. Removing the WLAN-antenna module Removing and installing Field Replaceable Units (FRUs)

  • Page 96: Installing The Wlan-Antenna Module

    Figure 67. Removing the WLAN-antenna module Steps 1. For computers shipped with WWAN antennas, remove the single screw (M2x2) that secure the Darwin antenna cable bracket to the system board. 2. Remove the Darwin antenna cable bracket from the system board. 3.
  • Page 97 Figure 68. Installing the WLAN-antenna module Removing and installing Field Replaceable Units (FRUs)
  • Page 98 Figure 69. Installing the WLAN-antenna module Steps 1. Slide and replace the WLAN-antenna module to the WLAN-antenna module slot on the system board. 2. Route the WLAN-antenna cables from the routing guides on the system board. 3. Replace the four screws (M1.6x2.5) that secure the WLAN-antenna module bracket on the system board. 4.

  • Page 99: I/O Daughterboard

    3. Install the WWAN card. 4. Install the SSD. 5. Install the base cover. 6. Follow the procedure in After working inside your computer. I/O daughterboard Removing the I/O daughterboard CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.
  • Page 100 Figure 71. Removing the I/O daughterboard Steps 1. Remove the single screw (M2x2) screw that secures the 4G WWAN card extension bracket to the palm-rest and keyboard assembly for the models that are shipped with a 4G WWAN card. 2. Remove the 4G WWAN card bracket from the computer for the models shipped with a 4G WWAN card. 3.
  • Page 101 NOTE: Orient the I/O daughterboard bridge connection board so that the arrows etched on the connector point upwards when reinstalling it. 13. Remove the bridge connector board from the computer. NOTE: When reinstalling the I/O daughterboard bridge connector board secure the six screws (M2x4) in sequential order (1 >...

  • Page 102: Installing The I/O Daughterboard

    Figure 74. Latitude 7450 5G WWAN Configuration (Thermal Pad Sticker) Installing the I/O daughterboard 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. NOTE: When replacing an I/O daughterboard for models shipped with a 4G WWAN card, the 4G WWAN card extension bracket and 4G gasket sticker must be removed and transferred over to the replacement I/O daughterboard.
  • Page 103 Figure 75. Installing the I/O daughterboard Steps 1. Adhere the WWAN thermal pad that is affixed to the WWAN card compartment and move it to the new I/O daughterboard if you are replacing the I/O daughterboard for models that are shipped with 5G WWAN card. 2.

  • Page 104: Power Button With Optional Fingerprint Reader

    10. Replace the single screw (M2x2) that secures the fingerprint reader bracket to palm-rest and keyboard assembly. 11. Connect the antenna cables to the connectors. 12. Route the two Darwin antenna cables, and green P-sensor cable from the routing guide on the I/O daughterboard. 13.

  • Page 105: Installing The Power Button With Optional Fingerprint Reader

    Figure 76. Removing the power button with optional fingerprint reader Steps 1. Remove the two screws (M1.6x1.7) that secure the power button to the palm-rest and keyboard assembly. 2. Peel the fingerprint reader flexible printed circuits from the connector on the palm-rest and keyboard assembly. NOTE: This step applies only to computers shipped with the power button with the fingerprint reader installed.

  • Page 106: Keyboard

    Figure 77. Installing the power button with optional fingerprint reader Steps 1. Place the power button into its slot on the palm-rest and keyboard assembly. 2. Adhere the fingerprint reader flexible printed circuits to the connector on the palm-rest and keyboard assembly. NOTE: This step applies only to computers shipped with a power button with the fingerprint reader installed.
  • Page 107 NOTE: This procedure applies only to computers shipped with a WWAN card installed. 5. Remove the 2-cell battery or the 3-cell battery, whichever is applicable. 6. Remove the heat-sink. 7. Remove the speakers. 8. Remove the daughterboard. 9. Remove the Power button.
  • Page 108 Figure 79. Removing the keyboard Steps 1. Peel the USH daughterboard flexible flat cable from the back of the keyboard. For Latitude 7450, when removing the keyboard from the keyboard bracket, first peel back the bracket's mylar tape from the bottom side of the keyboard.

  • Page 109: Installing The Keyboard

    3. Remove the nineteen screws (M1.6x1.7) and six screws (M1.6x1.4) securing the keyboard assembly to the computer. 4. Carefully lift the keyboard assembly to remove it from the computer. 5. Remove the two screws (M1.6x1.7) that secure the keyboard to the keyboard support plate. 6.
  • Page 110 Figure 82. Installing the keyboard Steps 1. Align the screw holes on the keyboard to the screw holes on the keyboard support plate and place the keyboard on the keyboard support plate. 2. Replace the two screws (M1.6x1.7) that secure the keyboard to the keyboard support plate. 3.

  • Page 111: Palm-Rest Assembly

    Figure 83. Installing the keyboard mylar tape Next steps 1. Follow the procedure in Before working inside your computer. 2. Install the system board. 3. Install the Power button. 4. Install the daughterboard. 5. Install the speakers. 6. Install the heat-sink. 7.

  • Page 112: Installing The Palm-Rest Assembly

    8. Remove the display assembly. 9. Remove the speakers. 10. Remove the system board. 11. Remove the daughterboard. 12. Remove the power button. 13. Remove the keyboard. NOTE: When removing the system board to replace or access other parts, the system board can be removed and installed with the heat sink attached to simplify the procedure and preserve the thermal bond between the system board and heat sink.
  • Page 113 About this task The following image indicates the location of the palm-rest assembly and provides a visual representation of the installation procedure. Figure 85. Installing the palm-rest assembly Steps 1. For computers shipped with a carbon fiber palm-rest, align to the slot on the palm-rest assembly. 2.

  • Page 114: Chapter 8: Graphics

    Graphics Table 32. Intel Arc Graphics specifications   Intel Arc Graphics specifications Values Bus type Integrated graphics NOTE: Intel Arc Graphics uses the computers memory as video memory. Memory type Shared system memory Graphics level i5/i7 Memory interface 64 Gbps, Unified Memory Architecture Estimated maximum power consumption (TDP) 28 W (H-series) included in the CPU power Overlay planes...

  • Page 115: Chapter 9: Software

    Your Latitude 7450 supports the following operating systems: ● Windows 11 22H2 ● Windows 11 23H2 ● Ubuntu Linux 22.04 LTS 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 116: Chapter 10: 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 117: View Advanced 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 118 Table 35. System setup options—Overview menu (continued) Overview Service Tag Displays the Service Tag of the computer. Asset Tag Displays the Asset Tag of the computer. Manufacture Date Displays the manufacture date of the computer. Ownership Date Displays the ownership date of the computer. Express Service Code Displays the Express Service Code of the computer.
  • Page 119 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 120 Table 36. System setup options—Boot Configuration menu (continued) Boot Configuration Enable Custom Mode Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified. By default, the Enable Custom Mode option is disabled. Custom Mode Key Management Selects the custom values for expert key management.
  • Page 121 By default, the Video/Power only on Type-C Ports option is disabled. Type-C Dock Type-C Dock Override Enables or disables to use connected Type-C Dell Dock to provide data stream with external USB ports disabled. When Type-C Dock override is enabled, the Video/Audio/LAN submenu is activated.
  • Page 122 Table 39. System setup options—Display menu  Display Display Brightness Brightness on battery power Enables to set the screen brightness when the computer is running on battery power. By default, the screen brightness is set to 50 when the computer is running on battery power.
  • Page 123 USB Wake Support Wake on Dell USB-C Dock When enabled, connecting a Dell USB-C Dock wakes the computer from Standby, Hibernate, and Power Off. By default, the Wake on Dell USB-C Dock option is enabled. Block Sleep Enables or disables the computer from entering Sleep (S3) mode in the operating system.
  • Page 124 BIOS. This option returns to the disabled state when the computer restarts. By default, the Clear option is disabled. Dell Technologies recommends enabling the Clear option only when PTT fTPM data needs to be cleared. Intel Total Memory Encryption Multi-Key Total Memory Encryption When enabled, it protects memory from physical attacks.
  • Page 125 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 features, you must enable the Absolute BIOS setting and contact Absolute for configuration and activation.
  • Page 126 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...
  • Page 127 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. Password Bypass The Password Bypass option allows the computer to reboot from the operating system without entering the computer or hard drive password.
  • Page 128 When an internal hard drive password is set, it must first be cleared before Master Password Lockout can be changed. By default, the Enable Master Password Lockout option is disabled. Dell does not recommend enabling the Master Password Lockout unless you have implemented your own password recovery computer. Enable Master Password Lockout The Master Password Lockout setting allows you to disable the Recovery Password feature.
  • Page 129 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 45. System setup options—System Management menu ...
  • Page 130 Table 45. System setup options—System Management menu (continued) System Management Auto On Time Enable to set the computer to turn on automatically every day or on a preselected date and time. This option can be configured only if the Auto On Time is set to Everyday, Weekdays, or Selected Days.
  • Page 131 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, since some older hardware is not DMA capable.
  • Page 132 Table 49. System setup options—Performance menu (continued) Performance Multiple Atom Cores Enables to change the number of Atom cores available to the operating system. The default value is set to the maximum number of cores. By default, the All Cores option is selected. Active Efficient Cores (E-Cores) Enables to change the number of CPU E-Cores available on the OS.

  • Page 133: Updating The Bios

    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 134: 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 135: Assigning A System Setup Password

    CAUTION: The password features provide a basic level of security for the data on your computer. CAUTION: Anyone can access the data that is stored on your computer, when not locked and left unattended. NOTE: System and setup password feature is disabled. Assigning a System Setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set.

  • Page 136: Clearing Cmos Settings

    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 137 Figure 87. BIOS-Setup When Block Boot Until Cleared is switch to OFF, you can choose either Continue to proceed with the normal computer boot-up or BIOS-Setup to clear the alert. Figure 88. BIOS-Setup NOTE: If the Continue option is selected, then you continue to see the alert each time the computer is turned on until the alert is cleared.
  • Page 138 Figure 89. Clear Intrusion Warning BIOS Setup...

  • Page 139: Chapter 11: 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 140: 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 141: 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 142: System-Diagnostic Lights

    (AC, battery, coin cell) and drain flea power by pressing and holding down the power button for 3~5 seconds. CPU failure ● Run the Dell Support Assist/Dell Diagnostics tool. ● If problem persists, replace the system board. System board failure (included ●...

  • Page 143: Recovering The Operating System

    SupportAssist OS Recovery. Dell SupportAssist OS Recovery is a stand-alone tool that is preinstalled in all Dell computers that are installed with the Windows operating system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the...

  • Page 144: Real-Time Clock (Rtc Reset)

    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 145 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 146: Chapter 12: 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 54. 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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