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Dell Latitude 9450 2-in-1 Owner's Manual

Dell Latitude 9450 2-in-1 Owner's Manual

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Latitude 9450 2-in-1
Owner's Manual
Regulatory Model: P166G
Regulatory Type: P166G002
March 2024
Rev. A00

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Summary of Contents for Dell Latitude 9450 2-in-1

  • Page 1 Latitude 9450 2-in-1 Owner's Manual Regulatory Model: P166G Regulatory Type: P166G002 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

    Front....................................... 9 Bottom....................................10 Service Tag..................................10 Modes....................................11 Battery charge and status light .............................13 Chapter 2: Set up your Latitude 9450 2-in-1................14 Chapter 3: Specifications of Latitude 9450 2-in-1................ 16 Dimensions and weight..............................16 Processor..................................... 16 Chipset....................................17 Operating system................................17 Memory....................................18...
  • Page 4 After working inside your computer........................35 BitLocker..................................35 Recommended tools................................. 36 Screw list.....................................36 Major components of Latitude 9450 2-in-1........................ 37 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........39 Nano-SIM card tray................................39 Removing the Nano-SIM card tray ........................39 Installing the Nano-SIM card tray ...........................
  • Page 5 Clearing BIOS (System Setup) and System passwords..................115 Chapter 9: Troubleshooting......................116 Handling swollen rechargeable Li-ion batteries......................116 Locate the Service Tag or Express Service Code of your Dell computer ............116 Dell SupportAssist Pre-boot System Performance Check diagnostics............... 117 Running the SupportAssist Pre-Boot System Performance Check............... 117 Built-in self-test (BIST)..............................117...

  • Page 6: Chapter 1: Views Of Latitude 9450 2-In-1

    Supports USB4, DisplayPort 2.1, Thunderbolt 4 and also enables you to connect to an external display using a display adapter. Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4. NOTE: You can connect a Dell Docking Station to the Thunderbolt 4 ports. For more information, search in the Knowledge Base Resource at www.dell.com/support. NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.
  • Page 7 Supports USB4, DisplayPort 2.1, Thunderbolt 4 and also enables you to connect to an external display using a display adapter. Provides data transfer rates of up to 40 Gbps for USB4 and Thunderbolt 4. NOTE: You can connect a Dell Docking Station to the Thunderbolt 4 ports. For more information, search in the Knowledge Base Resource at www.dell.com/support. NOTE: A USB Type-C to DisplayPort adapter (sold separately) is required to connect a DisplayPort device.

  • Page 8: Top

    8. Webcam control (Zoom app and Teams for work or school (Windows desktop) app support only) Tap to turn on or off the camera. Icon turns white when camera is on and red when camera is off. 9. Haptic Collaboration Touchpad Views of Latitude 9450 2-in-1...

  • Page 9: Front

    Enhances security when paired with Windows Hello face authentication. 7. RGB camera Enables you to video chat, capture photos, and record videos. 8. Infrared emitter Emits infrared light, which enables the infrared camera to sense and track motion. Views of Latitude 9450 2-in-1...

  • Page 10: Bottom

    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 9450 2-in-1...

  • Page 11: Modes

    Figure 6. Service tag location Modes The following modes are applicable for your Latitude 9450 2-in-1 computer. Notebook Figure 7. Notebook mode Views of Latitude 9450 2-in-1...
  • Page 12 Tablet Figure 8. Tablet mode Stand Figure 9. Stand mode Views of Latitude 9450 2-in-1...

  • Page 13: Battery Charge And Status Light

    Tent Figure 10. Tent mode Battery charge and status light The following table lists the battery charge and status light behavior of your Latitude 9450 2-in-1. Table 1. Battery charge and status light behavior  Power Source LED Behavior System Power State...

  • Page 14: Chapter 2: Set Up Your Latitude 9450 2-In-1

    2. Finish the operating system setup. 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 15 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 16: Chapter 3: Specifications Of Latitude 9450 2-In-1

    The weight of your computer depends on the configuration that is ordered and manufacturing variability. Processor The following table lists the details of the processors that are supported for your Latitude 9450 2-in-1. Table 4. Processor  Description Option one Option two...

  • Page 17: Chipset

    12 MB 12 MB Integrated graphics Intel Graphics Intel Graphics Intel Graphics Chipset The following table lists the details of the chipset that is supported for your Latitude 9450 2-in-1. Table 5. Chipset  Description Values Chipset Integrated with the processor Processor...

  • Page 18: Memory

    Memory The following table lists the memory specifications of your Latitude 9450 2-in-1. Table 6. Memory specifications  Description Values Memory slots On-board memory NOTE: Integrated memory is not upgradable. Memory type LPDDR5x Memory speed 7467 MT/s Maximum memory configuration 64 GB...

  • Page 19: Internal Slots

    Internal slots The following table lists the internal slots of your Latitude 9450 2-in-1. Table 8. Internal slots  Description Values ● On-board Wi-Fi and Bluetooth ● One M.2 3052 slot for WWAN ● One M.2 2230 slot for solid-state drive (SSD)

  • Page 20: Keyboard

    M.2 2230, Class 25 solid-state drive Gen 4 PCIe x4 NVMe 2 TB Keyboard The following table lists the keyboard specifications of your Latitude 9450 2-in-1. Table 11. Keyboard specifications  Description Values Keyboard type Single-pointing spill-resistant, zero-lattice keyboard with...
  • Page 21 Operating system and application-specific F12 behavior Fn + PrtScr Turn off or on wireless Fn + B Pause or break Fn + Insert Sleep Fn + S Toggle scroll lock Fn + R System request Specifications of Latitude 9450 2-in-1...

  • Page 22: Camera

    Fn + PgDn Page down Fn + Home Home Fn + End Camera The following table lists the camera specifications of your Latitude 9450 2-in-1. Table 14. Camera specifications  Description Values Number of cameras Camera type ● FHD RGB + IR Camera with built-in collaboration features ●...

  • Page 23: Clickpad

    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 supports modular installation which allows you to select the modules you want to install. Install the collaboration touchpad module within the Dell Optimizer app to enjoy the functionality of collaboration controls.

  • Page 24: Power Adapter

    Values NOTE: For more information about how to configure and use the collaboration controls, search for the Collaboration Touchpad Reference Guide in the Knowledge Base Resource at www.dell.com/support. Or, watch the video at www.dell.com/collaboration-touchpad. NOTE: Collaboration Touchpad is supported only on Teams for work or school (Windows desktop) application. Teams for home and Teams on web are currently not supported.

  • Page 25: Battery

    Battery The following table lists the battery specifications of your Latitude 9450 2-in-1. Table 17. Battery specifications  Description Values Battery type 3-cell, 60 WHr, ExpressCharge Boost capable, Long-lifecycle capable Battery voltage 11.55 VDC Battery weight (maximum) 0.24 kg (0.52 lb)

  • Page 26: Fingerprint Reader (Optional)

    Power consumption (maximum) 2.85 W Anti-glare vs glossy finish anti-reflection, anti-smudge Fingerprint reader (optional) The following table lists the specifications of the optional fingerprint-reader of your Latitude 9450 2-in-1. Table 19. Fingerprint reader specifications  Description Values Fingerprint-reader sensor technology Trans-capacitive sensing...

  • Page 27: Sensor

    Sensor The following table lists the sensor of your Latitude 9450 2-in-1. Table 20. Sensor  Sensor support Low Power Vision AI Based User Presence Detection Ambient Light Sensor Windows Auto Brightness IR User Proximity Detection eCompass/Magnetometer Accelerometer Gyro + Accelerometer...

  • Page 28: Multiple Display Support Matrix

    Face IR camera (Windows Hello compliant) with ExpressSign-in 1.0 (Proximity Sensor) and ExpressSign-in 2.0 (Camera Sensing) Dell SafeBIOS - Verifies the integrity of BIOS using a secure off-host source, and if the test fails, captures and stores a copy of the test result in a secure area in the computer.

  • Page 29: Dell Support Policy

    † 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. SafeShutter This section details the SafeShutter specifications of your Latitude 9450 2-in-1. SafeShutter lets you take control of your privacy with the camera disable (F9 key), and mic mute (F4 key) to override software settings.

  • Page 30: 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 31 Figure 12. Dell logo screen 3. For computers configured with an Owner Tag When the Owner Tag information appears on the screen, press any key to proceed. NOTE: The Service Mode procedure will automatically skip this step if the Owner Tag of the system is not set up in advance by the manufacturer.

  • Page 32: Before Working Inside Your Computer

    Figure 14. Press any key 5. When the ready-to-proceed message appears on the screen, press any key to proceed. The system emits three short beeps and shuts down immediately. Figure 15. Ready-to-proceed message Once the system shuts down, you can then go to perform replacement procedures. To exit Service Mode, connect the AC adapter and press the power button to power on the system.

  • Page 33: 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 34: Electrostatic Discharge-Esd Protection

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

  • Page 35: Transporting Sensitive Components

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

  • Page 36: Recommended Tools

    Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ● Plastic scribe 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.

  • Page 37: Major Components Of Latitude 9450 2-In-1

    System board M1.6x2 M1.6x3 Major components of Latitude 9450 2-in-1 The following image shows the major components of Latitude 9450 2-in-1. Figure 16. Explode view 1. Base cover 2. Speaker 3. WWAN card shielding cover Working inside your computer...
  • Page 38 15. Solid-state drive shielding cover 16. Speaker NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverage that you have purchased. Contact your Dell sales representative for purchase options.

  • Page 39: 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. Nano-SIM card tray Removing the Nano-SIM card tray Prerequisites...
  • Page 40 Figure 17. Removing the Nano-SIM card tray Steps 1. Insert the Nano-SIM card removal pin into the release hole to release the Nano-SIM card tray. 2. Push the pin to disengage the lock, and eject the Nano-SIM card tray. 3. Slide the Nano-SIM card tray out of the slot on the system. 4.

  • Page 41: Installing The Nano-Sim Card Tray

    Installing the Nano-SIM card tray Prerequisites If you are replacing a component, remove the necessary component before the installation procedure. About this task The following image provides a visual representation of the Nano-SIM card tray installation procedure. Figure 18. Installing the Nano-SIM card tray Steps 1.

  • Page 42: Base Cover

    3. Slide the Nano-SIM card tray out of the slot on the system. 4. Align and place the Nano-SIM card in the dedicated slot on the Nano-SIM card tray. 5. Slide the Nano-SIM card tray back into the slot on the system. Next steps Follow the procedure in after working inside your...
  • Page 43 Figure 20. Base cover removal Steps 1. Loosen the six captive screws that secure the base cover to the system. 2. Using a plastic scribe, pry open the base cover starting from the recesses, which are in the U-shaped indents at the top edge of the base cover, near the hinges.

  • Page 44: Installing The Base Cover

    CAUTION: Do not lift the base cover from the top side immediately after prying it from the recesses, as this will cause damage to the base cover. Proceed with the following steps to loosen all the hooks that secure the base cover to the system before removing the base cover.

  • Page 45: Fan

    Figure 23. Installing the base cover Steps 1. Align and place the base cover on the palm-rest and keyboard assembly, and snap the base cover into place. 2. Tighten the six captive screws to secure the base cover to the system. Next steps 1.

  • Page 46: Installing The Right Fan

    About this task The following image indicates the location of the right fan and provides a visual representation of the removal procedure. Figure 24. Removing the right fan Steps 1. Peel off the mylar sticker from the system board. 2. Disconnect the right-fan FPC cable from the connector (FANR) on the system board. 3.

  • Page 47: Removing The Left Fan

    Figure 25. Installing the right fan Steps 1. Align and place the right fan onto the palm-rest assembly. 2. Replace the two (M1.6x3) screws to secure the right fan to the palm-rest assembly. 3. Connect the right-fan FPC cable to the connector (FANR) on the system board. 4.

  • Page 48: Installing The Left Fan

    Figure 26. Removing the left fan Steps 1. Peel off the mylar sticker from the system board. 2. Disconnect the left-fan FPC cable from the connector (FANL) on the system board. 3. Remove the two (M1.6x3) screws that secure the left fan to the palm-rest assembly. 4.

  • Page 49: Solid State Drive

    Figure 27. Installing the left fan Steps 1. Align and place the left fan onto the palm-rest assembly. 2. Replace the two (M1.6x3) screws to secure the left fan to the palm-rest assembly. 3. Connect the left-fan cable to the connector (FANL) on the system board. 4.
  • Page 50 Figure 28. Removing the solid state drive Steps 1. Loosen the captive screw that secures the solid state drive shielding cover to the system board. 2. Pry open the M.2 SSD shielding cover from the recesses that are at its left or right sides. Lift the solid state drive off the slot.

  • Page 51: Installing The Solid State Drive

    Installing the solid state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the solid state drive and provides a visual representation of the installation procedure.
  • Page 52 CAUTION: Ensure that your computer is in Service Mode. For more information, see step 6 in before working inside your computer. 2. Remove the Nano-SIM card tray. 3. Remove the base cover. About this task The following images indicate the location of the WWAN card and provide a visual representation of the removal procedure. Figure 31.
  • Page 53 Figure 32. WWAN card shielding cover NOTE: A thermal pad is included with the WWAN card shielding cover which must always be adhered to the cover. If the thermal pad gets separated from the cover or adheres to the WWAN card during the removal procedure, you must readhere the thermal pad to the cover before installing the cover to the system.

  • Page 54: Installing The Wwan Card

    5. Slide and remove the WWAN card from the WWAN card slot. Installing the WWAN card 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 WWAN card and provides a visual representation of the installation procedure. Figure 34.

  • Page 55: Wireless Local Area Network (Wlan) Antenna Module

    For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number, see the knowledge base article 000143678 at www.dell.com/support. 5. Align and place the WWAN card shielding cover over the WWAN card. 6. Press the WWAN card shielding cover to fix it firmly in place.

  • Page 56: Installing The Wlan Antenna Module

    Steps 1. Peel off the piece of tape that secures the WLAN antenna module to the palm-rest assembly. 2. Remove the two (M1.6x3) screws that secure the WLAN antenna module to the palm-rest assembly. 3. Lift and remove the WLAN antenna module off the system. Installing the WLAN antenna module Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 57: 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 58 Prerequisites 1. Follow the procedure in before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information, see step 6 in before working inside your computer. 2. Remove the Nano-SIM card tray. 3. Remove the base cover.
  • Page 59 Figure 38. Removing the battery Figure 39. Removing the battery Steps 1. Remove the screw that secures the Darwin antenna cable (D2) bracket. 2. Lift the Darwin antenna cable (D2) bracket off the system board. 3. Loosen the captive screw that secures the WLAN bracket to the system board. 4.

  • Page 60: Installing The Battery

    NOTE: The cables for the WLAN antennas are routed over the plastic bracket at the upper-right corner and within the routing guides along the bottom-right side of the battery. You must be careful when unrouting the antenna cables from their routing guides while they are still attached to the WLAN card. 7.
  • Page 61 Figure 41. Installing the battery Removing and installing Field Replaceable Units (FRUs)
  • Page 62 Figure 42. Installing the battery Steps 1. Align and place the battery on the palm-rest assembly. 2. Replace the six (M2x3) screw to secure the battery to the palm-rest assembly. 3. Route the M1 blue WWAN antenna cable from the routing guides along the left side of the WWAN card and the upper-right corner of the battery.

  • Page 63: Heat Sink

    2. Install the WWAN card. 3. Install the base cover. 4. Install the Nano-SIM card tray. 5. Follow the procedure in after working inside your computer. Heat sink Removing the heat sink CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 64: Installing The Heat Sink

    Installing the heat sink 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 heat sink and provides a visual representation of the installation procedure. Figure 44.
  • Page 65 NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in before working inside your computer. 2. Remove the Nano-SIM card tray. 3. Remove the base cover. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. Figure 45.
  • Page 66 Figure 46. Removing the display assembly Steps 1. Disconnect the battery cable from the battery cable connector on the system board. 2. Remove the two (M1.6x3) screws that secure the display cable/Type-C bracket in place. 3. Lift the display cable/Type-C bracket off the system board. 4.

  • Page 67: Installing The Display Assembly

    Figure 47. Disconnecting the display cable 5. Open the display assembly to a 90-degree angle and lay the computer on the edge of the table so the palm-rest assembly is laying flat on the table and the display assembly is over the edge. 6.
  • Page 68 Figure 48. Installing the display assembly Removing and installing Field Replaceable Units (FRUs)

  • Page 69: System-Board

    Figure 49. Installing the display assembly Steps 1. Align and place the palm-rest assembly under the hinges of the display assembly. 2. Replace the six (M2.5x4) screws to secure the display assembly to the computer. 3. Connect the display and camera cable to the connectors (CAMERA) on the system board. 4.
  • Page 70 Prerequisites 1. Follow the procedure in before working inside your computer NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in before working inside your computer. 2. Remove the Nano-SIM card tray, if applicable. 3.
  • Page 71 Figure 51. Removing the system board Figure 52. Removing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 72 Steps 1. Remove the two (M1.6x3) screws that secure the display cable/Type-C bracket in place. 2. Lift the display cable/Type-C bracket off the system board. 3. For systems that shipped with the WWAN card: a. Remove the single (M1.6x2) screw that secures the WWAN/Darwin-cable bracket to the system board. b.
  • Page 73 There are seven screws in two sizes that secure the system board in place. Figure 54. System board 10. Remove the system board off the chassis. CAUTION: Do not hold and bend the system board from its neck as it may damage the system board. Figure 55.

  • Page 74: Installing The System Board

    Figure 56. WWAN thermal pad a. Display absorber (for computers shipped with WWAN antennas) or display mylar (for computers shipped without WWAN antennas) b. WWAN card thermal pad sticker (for computers shipped with WWAN antennas) Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only.
  • Page 75 1. Speaker cable connector (SPKL) 2. WWAN card connector (JNGFF2) 3. Fan cable connector (FANL) 4. Touchpad cable connector (TP) 5. Battery cable connector (Battery) 6. USH I/O board cable connector (USH) 7. Fan cable connector (FANR) 8. M.2 2230 solid state drive connector (LA-M39) 9.
  • Page 76 Figure 59. Installing the system board Steps 1. Adhere the display absorber and WWAN thermal pad (for systems shipped with WWAN) on the system board. NOTE: All the above mentioned absorbers/stickers on the system board are re-usable and must be immediately relocated to the replacement system board.
  • Page 77 Figure 60. WWAN thermal pad a. Display absorber (for models shipped with WWAN antennas) or display mylar (for models shipped without WWAN antennas) b. WWAN card thermal pad sticker (for models shipped with WWAN antennas) 2. Align and place the system board on the palm-rest assembly. CAUTION: Do not hold and bend the system board from its necks as it may damage the system board.
  • Page 78 Figure 62. System board 4. Align and place the USB Type-C bracket on the system board. 5. Replace the three (1.6x3) screws to secure the USB Type-C bracket to the system board. 6. For systems shipped with WWAN, route the WWAN antenna cables through their routing guides on the system board. 7.

  • Page 79: Power Button With Fingerprint-Reader Assembly

    8. Install the Nano-SIM card tray if applicable. 9. Follow the procedure in after working inside your computer. Power button with fingerprint-reader assembly Removing the power button with fingerprint-reader assembly CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 80: Installing The Power Button With Fingerprint Reader Assembly

    Steps 1. For models that are shipped with a fingerprint-reader, disconnect the power-button FPC cable from the connector (USH) on the USH I/O board. For models that are shipped without a fingerprint-reader, disconnect the power-button FPC cable from the connector on the system board. NOTE: Power button with fingerprint-reader connects to the USH board and the USH-board FPC cable connects to the system board.

  • Page 81: Speaker

    NOTE: The power button with fingerprint reader connects to the USH board and the USH-board FPC cable connects to the system board. The power button without fingerprint-reader FPC connects directly to system board and it uses the same connector as the USH-board FPC connector on the system board. 4.

  • Page 82: Installing The Right Speaker

    Figure 65. Removing the right-speaker Steps 1. Peel the tape securing the right-speaker cable to the chassis. 2. Remove the two (M1.6x1.8) screws that secure the right-speaker in place. 3. Disconnect the right-speaker cable from connector (SPKL) on the system board. 4.
  • Page 83 Figure 66. Installing the right-speaker Steps 1. Align and place the right-speaker into the slot on the chassis. 2. Replace the two (M1.6x1.8) screws to secure the right-speaker to the system. 3. Connect the right-speaker cable to connector (SPKL) on the system board. 4.

  • Page 84: Palm-Rest And Keyboard Assembly

    Next steps 1. Install the battery. 2. Install the WWAN card if applicable. 3. Install the base cover. 4. Follow the procedure in after working inside your computer. Palm-rest and keyboard assembly Removing the palm-rest and keyboard assembly CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1.

  • Page 85: Installing The Palm-Rest And Keyboard Assembly

    About this task Figure 68. Palm-rest and keyboard assembly Installing the palm-rest and keyboard 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 The following images indicate the location of the palm-rest and keyboard assembly and provide a visual representation of the removal procedure.
  • Page 86 Figure 69. Installing the palm-rest assembly and keyboard assembly Steps Place the palm-rest and keyboard assembly on a flat surface. Next steps 1. Install the power button. 2. Install the right-speaker. 3. Install the system board. 4. Install the battery. 5.

  • Page 87: Chapter 7: Software

    Your Latitude 9450 2-in-1 supports the following operating systems: ● Windows 11 22H2 ● Windows 11 23H2 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 88: 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 89: 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 90 Table 27. System Setup options—Overview menu  Overview Latitude 9450 2-in-1 BIOS Version Displays the BIOS version number. 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.
  • Page 91 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 92 By default, the Enable Microsoft UEFI CA option is enabled. For additional security, Dell Technologies recommends keeping the Microsoft UEFI CA option enabled to ensure the broadest compatibility with devices and operating systems.
  • Page 93 Table 29. System Setup options—Integrated Devices menu (continued) Integrated Devices By default, all the options are enabled. Enable Microphone Enables the microphone. By default, the Enable Microphone option is enabled. NOTE: Depending on the configuration ordered, the microphone setup option may not be available. Enable Internal Speaker Enables the internal speaker.
  • Page 94 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. By default, the Type-C Dock Override option is enabled.
  • Page 95 Table 31. 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 96 Table 32. System Setup options—Connection menu (continued) Connection NOTE: To view this option, enable Advanced Setup mode as described in View Advanced Setup options. Control WWAN Radio Enables to sense the connection of the computer to a wired network and then disables the selected WWAN radios.
  • Page 97 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. NOTE:...
  • Page 98 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 TPM data is required to be cleared. NOTE:...
  • Page 99 When set to On-Silent, the event is logged in the BIOS Events log, but no notification is displayed. By default, the Chassis Intrusion Detection option is disabled. For additional security, Dell Technologies recommends keeping the Chassis Intrusion option enabled. NOTE:...
  • Page 100 By default, the PPI Bypass for SED Block SID Command 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 forconfiguration and activation.
  • Page 101 ● When set, the administrator password must be provided during a firmware update. ● Clearing the administrator password also clears the system password (if set). Dell Technologies recommends using an administrator password to prevent unauthorized changes to BIOS Setup options. BIOS Setup...
  • Page 102 Password prompt. ● The system password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the system password in situations where it is likely that a computer may be lost or stolen. Hard Drive Password The hard drive password can be set to prevent unauthorized access of the data stored on the solid-state drive.
  • Page 103 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. NOTE:...
  • Page 104 Allows the control of the automatic boot flow for the SupportAssist System Resolution Console and the Dell operating system Recovery Tool. By default, the Dell Auto OS Recovery Threshold value is set to 2. NOTE: To view this option, enable Advanced Setup mode as described in View Advanced Setup options.
  • Page 105 Table 37. System Setup options—System Management menu  System Management Service Tag Displays the Service Tag of the computer. Asset Tag Creates a computer Asset Tag that an IT administrator can use to uniquely identify a particular computer. NOTE: Once set in the BIOS, the Asset Tag cannot be changed. Wake on AC Enables or disables the computer to turn on and go to boot when AC power is supplied to the computer.
  • Page 106 Table 38. System Setup options—Keyboard menu (continued) Keyboard By default, the Dim option is selected. Enables the keyboard illumination feature at 100% brightness level. Keyboard Backlight Timeout on AC Sets the timeout value for the keyboard backlight when an AC adapter is connected to the computer.
  • Page 107 Table 39. System Setup options—Pre-boot Behavior menu (continued) Pre-boot Behavior By default, the System Unique MAC Address option is selected. Sign of Life Early Logo Display Displays the Logo Sign of Life. By default, the Early Logo Display option is enabled. NOTE: To view this option, enable Advanced Setup mode as described in View Advanced Setup...
  • Page 108 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 109 Table 41. System Setup options—Performance menu (continued) Performance NOTE: To view this option, enable Advanced Setup mode as described in View Advanced Setup options. Intel Turbo Boost Technology Enable Intel Turbo Boost Technology Enables or disables the Intel TurboBoost mode of the processor. When enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor.

  • Page 110: Updating The Bios

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

  • Page 111: System And Setup Password

    ● BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive ● AC power adapter that is connected to the computer ● Functional computer battery to flash the BIOS Perform the following steps to perform the BIOS update flash process from the F12 menu: CAUTION: Do not turn off the computer during the BIOS update process.

  • Page 112: Deleting Or Changing An Existing System Setup Password

    ● Lower case letters from a to z. 3. Type the system password that you entered earlier in the Confirm new password field and click OK. 4. Press Esc and save the changes as prompted by the message. 5. Press Y to save the changes. The computer restarts.
  • Page 113 Figure 70. Security tab ● If Block Boot Until Cleared is set to ON, the user must select BIOS-Setup and clear the intrusion alert in order to boot. Figure 71. Block Boot Until Cleared is set to ON ● If Block Boot Until Cleared is set to OFF, select Continue to boot or BIOS-Setup to clear the alert. BIOS Setup...

  • Page 114: Clearing Cmos Settings

    Figure 72. Block Boot Until Cleared is set to OFF NOTE: If Continue is selected, the user continues to see the alert each time the system is powered on until the alert is cleared. To clear the alert, select ON in the Clear Intrusion Warning field in the Security sub-menu of the BIOS setup menu. Figure 73.

  • Page 115: Clearing Bios (System Setup) And System Passwords

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

  • Page 116: 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 117: 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 118: 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 119: System-Diagnostic Lights

    System-diagnostic lights This section lists the system-diagnostic lights of your Latitude 9450 2-in-1. Battery-status light Indicates the power and battery-charge status. Solid white—Power adapter is connected and the battery has more than 5 percent charge. Amber—Computer is running on battery and the battery has less than 5 percent charge.

  • Page 120: 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 121: 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 122: Drain Residual Flea Power (Perform Hard Reset)

    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 123: 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 46. 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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