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Dell Latitude 5455 Owner's Manual
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Dell Latitude 5455 Owner's Manual

Dell Latitude 5455 Owner's Manual

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Latitude 5455
Owner's Manual
Regulatory Model: P190G
Regulatory Type: P190G001
September 2024
Rev. A00

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Summary of Contents for Dell Latitude 5455

  • Page 1 Latitude 5455 Owner's Manual Regulatory Model: P190G Regulatory Type: P190G001 September 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 Bottom....................................9 Locate the Service Tag or Express Service Code label of your computer............9 Battery charge and status light .............................10 Chapter 2: Set up your Latitude 5455...................11 Chapter 3: Specifications of Latitude 5455.................. 13 Dimensions and weight..............................13 Processor..................................... 13 Chipset....................................14...
  • Page 4 After working inside your computer........................30 BitLocker..................................30 Recommended tools................................. 30 Screw list.....................................30 Major components of Latitude 5455 ........................... 31 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........34 Base cover..................................34 Removing the base cover............................34 Installing the base cover............................37 Solid state drive (SSD)..............................
  • Page 5 Clearing chassis intrusion alert.............................100 Chapter 9: Troubleshooting....................... 103 Handling swollen rechargeable Li-ion batteries......................103 Locating the Service Tag or Express Service Code of your Dell computer ............. 103 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 104 Running the SupportAssist Pre-Boot System Performance Check.............. 104 Built-in self-test (BIST)..............................104...
  • Page 6 NOTE: You can connect a Dell docking station to one of the two USB Type-C ports. If your docking station has two cables, do not connect both cables to the two USB Type-C ports simultaneously. You may encounter issues with the charging circuits when this method of connection is used.
  • Page 7 NOTE: You can customize the power-button behavior in Windows. 2. Touchpad Move your finger on the touchpad to move the mouse pointer. Tap to left-click and two fingers tap to right-click. Views of Latitude 5455...
  • Page 8 Turns on when the camera is in use. 7. Right microphone Provides digital sound input for audio recording and voice calls. 8. Ambient-light sensor The sensor detects the ambient light and automatically adjusts the display brightness. Views of Latitude 5455...
  • Page 9 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. The Express Service Code is a numeric version of the Service Tag. For more...
  • Page 10 Figure 6. Service Tag/Express Service Code location Battery charge and status light The following table lists the battery charge and status light behavior of your Latitude 5455. Table 1. Battery charge and status light behavior  Power Source LED Behavior...
  • Page 11 2. Finish the operating system setup. Follow the on-screen instructions to complete the setup. When setting up, Dell Technologies recommends that you: ● Connect to a network for Windows updates.
  • Page 12 SupportAssist proactively checks the health of your computer hardware and software. When an issue is detected, the necessary system state information is sent to Dell to begin troubleshooting. SupportAssist is preinstalled on most of the Dell devices running the Windows operating system. For...
  • Page 13 1.53 kg (3.37 lb) - minimum NOTE: The weight of your computer depends on the configuration that is offered. Processor The following table lists the details of the processors that are supported for your Latitude 5455. Table 4. Processor  Description Option one Option two...
  • Page 14 Up to 45 TOPS Up to 45 TOPS Integrated graphics Qualcomm Adreno Graphics Qualcomm Adreno Graphics Chipset The following table lists the details of the chipset that is supported in your Latitude 5455. Table 5. Chipset  Description Values Chipset Integrated in the processor...
  • Page 15 Memory The following table lists the memory specifications of your Latitude 5455. Table 6. Memory specifications  Description Values Memory slots Onboard memory NOTE: The memory is integrated on the system board and is not upgradeable. Memory type LPDDR5x Memory speed...
  • Page 16 M.2 cards, search in the Knowledge Base Resource at Dell Support Site. Wireless module The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Latitude 5455. Table 9. Wireless module specifications  Description Values Model number...
  • Page 17 M.2 2230 solid state drive PCIe Gen4 NVMe, up to 64 Gbps Up to 1 TB Media-card reader The following table provides the specification of media cards supported by your Latitude 5455. Table 12. Media-card reader specifications  Description Values Media-card slot type...
  • Page 18 Keyboard The following table lists the keyboard specifications of your Latitude 5455. Table 13. Keyboard specifications  Description Values Keyboard type Standard backlit keyboard with Copilot key Keyboard layout QWERTY Number of keys ● Arabic, Canada (Bilingual) MUI, Chinese (Traditional), English International, English US, Hebrew, Ukrainian: 79 keys ●...
  • Page 19 Operating system and application-specific F11 behavior fn + F12 Operating system and application-specific F12 behavior fn + B Pause or break. fn + S Toggle scroll lock. fn + R System request. fn + Copilot Open the application menu. Specifications of Latitude 5455...
  • Page 20 Home (move to the beginning of the document). fn + right arrow End (move to the end of the document). Camera The following table lists the camera specifications of your Latitude 5455. Table 16. Camera specifications  Description Values Number of cameras Camera type ●...
  • Page 21 Power adapter requirements of Latitude 5455 NOTE: If you did not purchase the Dell-branded power adapter that is recommended for your computer, ensure that the power adapter you use meets the following requirements. The following table lists the power adapter requirements for your Latitude 5455.
  • Page 22 ExpressCharge mode must also be enabled in the BIOS Setup screen. Select Power > Battery Configuration > ExpressCharge, then press Enter. Battery The following table lists the battery specifications of your Latitude 5455. Table 20. Battery specifications  Description Values Battery type...
  • Page 23 Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. CAUTION: Dell Technologies recommends that you charge the battery regularly for optimal power consumption. Fingerprint reader The following table lists the fingerprint-reader specifications of your Latitude 5455.
  • Page 24 Power consumption (maximum) 3.68 W at mosaic pattern Anti-glare vs glossy finish Anti-glare GPU—Integrated The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Latitude 5455. Table 23. GPU—Integrated  Controller Memory size Processor Qualcomm Adreno Graphics Shared system memory ●...
  • Page 25 Fingerprint reader in the power button (for computers shipped with fingerprint reader) Operating and storage environment This table lists the operating and storage specifications of your Latitude 5455. Airborne contaminant level: G1 as defined by ISA-S71.04-1985 Table 27. Computer environment ...
  • Page 26 ● Options of thermal mode settings that enhance the performance of your computer. ● Get information about the battery that is connected to your computer. For more information about configuring and using these features, search for the Dell Optimizer User 's Guide at the Dell Support site.
  • Page 27 You should only perform troubleshooting and repairs as authorized or directed by the Dell technical support 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 Dell Regulatory Compliance Home Page.
  • Page 28 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 29 NOTE: 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 servicing the computer.
  • Page 30 Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. After working inside your computer About this task CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
  • Page 31 Display hinges M2.5x4.5 WLAN-antenna module M2x2.5 WLAN-thermal shield M2x2.5 Heat sink M2x2.5 System board M1.6x1.8 Touchpad assembly M1.6x1.8 I/O board M2x2.5 Major components of Latitude 5455 The following image shows the major components of the Latitude 5455. Working inside your computer...
  • Page 32 Figure 9. Major components of Latitude 5455 1. Base cover 2. Heat sink 3. USB Type-C bracket NOTE: The USB Type-C bracket is bundled with the system board. DO NOT remove the USB Type-C bracket from the system board. 4. System board...
  • Page 33 18. I/O-board cable 19. Fan NOTE: Dell provides a list of components and their part numbers for the original computer configuration purchased. These parts are available according to warranty coverage purchased by the customer. Contact your Dell sales representative for purchase options.
  • Page 34 Removing and installing Customer Replaceable Units (CRUs) The replaceable components in this chapter are Customer Replaceable Units (CRUs). CAUTION: Customers can replace only the Customer Replaceable Units (CRUs) following the safety precautions and replacement procedures. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Base cover Removing the base cover Prerequisites...
  • Page 35 Figure 10. Removing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 36 Figure 11. Removing the base cover Figure 12. Disconnecting the battery cable Removing and installing Customer Replaceable Units (CRUs)
  • Page 37 Steps 1. Remove the five screws (M2x5.5) that secure the base cover to the palm-rest and keyboard assembly. NOTE: Ensure that you remove the five non-captive screws first to create the gap for prying the base cover off the palm-rest and keyboard assembly. 2.
  • Page 38 Figure 14. Installing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 39 Figure 15. Tightening and replacing the screws NOTE: If the battery is not a pre-requisite and if you have disconnected the battery cable, ensure that you connect the battery cable. To connect the battery cable, follow step 1 and step 2 in the procedure. Steps 1.
  • Page 40 Figure 16. Removing the SSD Steps 1. Remove the screw (M2x2.5) that secures the SSD thermal shield to the palm-rest and keyboard assembly. 2. Slide the SSD thermal shield downwards and lift the thermal shield off the computer. NOTE: The SSD thermal shield includes a thermal pad that is attached to the bottom of the shield. Ensure that you adhere the thermal pad back to its location if it is displaced during the removal procedure.
  • Page 41 Installing the SSD 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 SSD and provide a visual representation of the installation procedure. Figure 18.
  • Page 42 Figure 19. Installing the SSD thermal shield NOTE: The SSD thermal shield includes a thermal pad that is attached to the bottom of the shield. Ensure that you adhere the thermal pad back to its location if it is displaced during the removal procedure. Figure 20.
  • Page 43 Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following images indicate the location of the speakers and provide a visual representation of the removal procedure. Figure 21.
  • Page 44 NOTE: DO NOT pull the speaker cable downwards to disconnect the cable from the system board. Instead, use a plastic scribe to pry up the bottom of the head of the cable connector first, and then lift it away from the connector. Figure 22.
  • Page 45 Figure 23. Installing the speakers Steps 1. Using the alignment posts, place the right and left speakers into their slots on the palm-rest and keyboard assembly. NOTE: Ensure that the rubber grommets are seated into the slot and installed on the speakers properly. Figure 24.
  • Page 46 5. Connect the left-speaker cable to the connector (JSPK1) on the system board. Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer.
  • Page 47 About this task The following images indicate the location of the fan and provide a visual representation of the installation procedure. Figure 26. Installing the fan Steps 1. Place and align the fan, along with the fan cable, in the slot on the palm-rest and keyboard assembly. CAUTION: Avoid touching the fan blades to prevent damage.
  • Page 48 ● 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 Contact Support at Dell Support Site.
  • Page 49 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task CAUTION: Removing the battery resets the BIOS setup settings to default. It is recommended that you note the BIOS setup settings before removing the battery. The following images indicate the location of the battery and provide a visual representation of the removal procedure.
  • Page 50 Figure 28. Installing the battery Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Tighten the five captive screws that secure the battery to the palm-rest and keyboard assembly. 3.
  • Page 51 Figure 29. Removing the battery cable Steps 1. Remove the Mylar that adheres the connector to the battery. 2. Turn the battery over and remove the Mylar that adheres the battery cable to the battery. 3. Disconnect the battery cable from the connector on the battery. 4.
  • Page 52 Figure 30. Disconnecting the battery cable Installing the battery cable 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 battery cable and provide a visual representation of the installation procedure.
  • Page 53 Figure 31. Installing the battery cable Steps 1. Route the battery cable through the routing guides at the back of the battery. 2. Connect the battery cable to the connector on the battery. 3. Adhere the Mylar to secure the battery cable to the battery. 4.
  • Page 54 Figure 32. Removing the heat sink Steps 1. In reverse sequential order (4 > 3 > 2 >1), remove the four screws (M2x2.5) that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink CAUTION: The information in this installation section is intended for authorized service technicians only.
  • Page 55 Figure 33. Installing the heat sink Steps 1. Align the screw holes on the heat sink with the screw holes on the system board. 2. In sequential order (1 > 2 > 3 > 4), replace the four screws (M2x2.5) that secure the heat sink to the system board. Next steps 1.
  • Page 56 Figure 34. Removing the coin-cell battery Steps 1. Disconnect the I/O-board cable from the connector (JIO1) on the system board. 2. Remove the I/O-board cable from the routing guide on the palm-rest and keyboard assembly. 3. Disconnect the coin-cell battery cable from the connector (JRTC1) on the system board. 4.
  • Page 57 Figure 35. Installing the coin-cell battery Steps 1. Adhere the coin-cell battery on to the coin-cell battery slot on the palm-rest and keyboard assembly. 2. Route the coin-cell battery cable through the routing guides on the palm-rest and keyboard assembly. 3.
  • Page 58 Figure 36. Location of the I/O-board cable The following images indicate the location of the I/O-board cable and provide a visual representation of the removal procedure. Figure 37. Removing the I/O-board cable NOTE: The I/O-board cable is routed along the bottom-right of the fan and secured in place by two pieces of tape. Removing and installing Field Replaceable Units (FRUs)
  • Page 59 Steps 1. Peel the tape that secures the I/O-board cable to the connector (JIO1) on the I/O board. 2. Open the latch and disconnect the I/O-board cable from the connector (JIO1) on the I/O board. 3. Remove the I/O-board cable from the routing guides on the palm-rest and keyboard assembly. 4.
  • Page 60 Figure 39. Installing the I/O-board cable Steps 1. Connect the I/O-board cable to the connector (JIO1) on the I/O board and close the latch to secure the cable in place. 2. Route the I/O-board cable through the routing guides on the palm-rest and keyboard assembly. 3.
  • Page 61 Figure 40. Removing the WLAN-antenna module Steps 1. Remove the screw (M2x2.5) that secures the WLAN-thermal shield to the WLAN module. 2. Slide the WLAN-thermal shield to the left and lift the shield off the palm-rest and keyboard assembly. NOTE: The WLAN-thermal shield includes a thermal pad that is attached to the bottom of the shield.
  • Page 62 Figure 41. Thermal pad below the WLAN-thermal shield 3. Disconnect the WLAN-antenna cables from the connectors (B and W) on the WLAN module. 4. Disconnect the I/O cable (MB) from the connector (JIO1) on the system board. 5. Peel the coin-cell battery and move it along with its cable from the routing guide on the palm-rest and keyboard assembly. 6.
  • Page 63 About this task The following images indicate the location of the WLAN-antenna module and provide a visual representation of the installation procedure. Figure 43. Installing the WLAN-antenna module Steps 1. Route the WLAN-antenna cables along the routing guides on the palm-rest and keyboard assembly. NOTE: Ensure that you route the antenna cables along its routing guides under the heat sink.
  • Page 64 Figure 44. Installing WLAN-antenna cables 2. Place the WLAN-antenna module in the slot on the palm-rest and keyboard assembly. 3. Align the screw hole on the WLAN-antenna module with the screw hole on the palm-rest and keyboard assembly. 4. Replace the screw (M2x2.5) that secures the WLAN-antenna module to the palm-rest and keyboard assembly. 5.
  • Page 65 Figure 45. Thermal pad below the WLAN-thermal shield Figure 46. Installing the WLAN-thermal shield 11. Replace the screw (M2x2.5) that secures the WLAN-thermal shield to the WLAN module. Next steps 1. Install the fan. 2. Install the base cover. 3. Follow the procedure in After working inside your computer.
  • Page 66 CAUTION: The maximum operating angle for the display-panel hinge is 135 degrees. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. 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 47.
  • Page 67 6. Remove the four screws (M2.5x4.5) that secure the left and the right display hinges to the palm-rest and keyboard assembly. 7. Lift the display assembly off the palm-rest and keyboard assembly. 8. After performing all the above steps, you are left with the display assembly. NOTE: The display assembly is a Hinge-Up Design (HUD) assembly, which cannot be further disassembled.
  • Page 68 Figure 49. Installing the display assembly Steps 1. Place the palm-rest and keyboard assembly at the edge of a flat table. 2. Open the hinges of the display assembly to a 90-degree angle. 3. Align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly. 4.
  • Page 69 I/O board Removing the I/O board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following images indicate the location of the I/O board and provide a visual representation of the removal procedure. Figure 50.
  • Page 70 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 I/O board and provide a visual representation of the installation procedure. Figure 51. Installing the I/O board Steps 1.
  • Page 71 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The following images indicate the location of the touchpad assembly and provide a visual representation of the removal procedure.
  • Page 72 Figure 53. Installing the touchpad assembly Steps 1. Connect the touchpad cable (TP) to the connector on the touchpad assembly and close the latch to secure the cable in place. 2. Place the touchpad into its slot on the computer. 3.
  • Page 73 NOTE: The power button on your computer may vary depending on the configuration which you have ordered. Figure 54. Removing the power button Figure 55. Removing the power button with fingerprint reader Lift the power button off the palm-rest and keyboard assembly. Removing and installing Field Replaceable Units (FRUs)
  • Page 74 Installing the power button CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the power button and provide a visual representation of the installation procedure. NOTE: The power button on your computer may vary depending on the configuration which you have ordered.
  • Page 75 Figure 57. Installing the power button with fingerprint reader Using the alignment post, place the power button in the slot on the palm-rest and keyboard assembly. NOTE: Ensure that the tab is inserted inside the slot and not on top of it. Avoid creating a gap, which may damage the I/O board or the base cover.
  • Page 76 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 SSD. 4.
  • Page 77 12. Wireless card (WLAN) 13. Coin-cell cable connector (JRTC1) NOTE: The replacement system board is shipped with the coin-cell battery attached. The following images indicate the location of the system board and provide a visual representation of the removal procedure. Figure 60.
  • Page 78 Figure 61. Removing the system board Steps 1. Remove the screw (M2x2.5) that secures the WLAN thermal shield to the palm-rest and keyboard assembly. 2. Slide the WLAN thermal shield to the left and lift the shield off the palm-rest and keyboard assembly. 3.
  • Page 79 Figure 62. USB Type-C bracket Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the system-board connectors.
  • Page 80 Figure 63. System-board connectors 1. Fan cable connector (JFAN1) 2. Camera-cable connector (MIPI) 3. Display-cable connector (EDP) 4. Solid state drive slot (SSD) 5. Left speaker-cable connector (JSPK1) 6. Battery-cable connector (JBATT1) 7. Keyboard-backlight cable connector (JKBBL1) 8. Keyboard-cable connector (JKB1) 9.
  • Page 81 Figure 64. Installing the system board Figure 65. Installing the system board Steps 1. Align the screw holes of the system board with the screw holes on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x2.5) that secure the USB Type-C bracket to the palm-rest and keyboard assembly. 3.
  • Page 82 Table 30. Antenna-cable color scheme  Connectors on the Antenna-cable color Silkscreen marking wireless card Main White ▲ (solid triangle) △ (outlined triangle) Auxiliary Black 9. Place the WLAN-thermal shield on the WLAN-antenna module and slide the shield to the right. 10.
  • Page 83 Figure 66. 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 image shows the palm-rest and keyboard assembly before all the components in the post-requisites steps have been installed.
  • Page 84 Figure 67. Palm-rest and keyboard assembly Next steps 1. Install the system board. 2. Install the power button. 3. Install the board. 4. Install the touchpad assembly. 5. Install the display assembly. 6. Install the WLAN-antenna module. 7. Install the I/O-board cable.
  • Page 85 Your Latitude 5455 supports the following operating systems: ● Windows 11 Home, ARM ● Windows 11 Pro, ARM 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 86 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 the installed devices, the options that are listed in this section may or may not be displayed.
  • Page 87 Depending on your computer and its installed devices, the items that are listed in this system setup section may or may not be displayed. Table 32. System setup options—Overview menu  Overview Latitude 5455 BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the computer.
  • Page 88 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 89 Table 33. System setup options—Boot Configuration menu (continued) Boot Configuration For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that the UEFI firmware validates the operating system during the boot process. Enable Microsoft UEFI CA When disabled, the UEFI CA is removed from the BIOS UEFI Secure Boot database.
  • Page 90 Table 34. System setup options—Integrated Devices menu (continued) Integrated Devices Enable Thunderbolt Technology Support Enable Thunderbolt Technology Support Enable the associated ports and adapters for Thunderbolt Technology support. By default, the Enable Thunderbolt Technology Support option is enabled. Disable USB4 PCIE Tunneling Disables the USB4 PCIE Tunneling option.
  • Page 91 TPM 2.0 Security On Allows you to enable or disable TPM. By default, the TPM 2.0 Security On option is enabled. For additional security, Dell Technologies recommends keeping TPM 2.0 Security On enabled to allow these security technologies to fully function. NOTE: The options that are listed apply to computers with a discrete Trusted Platform Module (TPM) chip.
  • Page 92 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. PPI Bypass for Clear Commands The PPI (Physical Presence Interface) Bypass for Clear Commands option allows the operating system to manage certain aspects of PTT.
  • Page 93 Pluton Security Processor might limit some operating system security services and impact functionality. . By default, the Pluton Security Processor option is enabled. For additional security, Dell Technologies recommends keeping the Pluton Security Processor option enabled. Table 40. System setup options—Passwords menu ...
  • Page 94 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. NOTE:...
  • Page 95 BIOS setup configuration without first entering the administrator password (if set). By default, the Enable Admin Setup Lockout option is disabled. For additional security, Dell Technologies recommends keeping the Admin Setup Lockout option disabled. NOTE: To view this option, enable Advanced Setup mode as described in View Advanced Setup options.
  • Page 96 Table 42. System setup options—System Management menu (continued) System Management Wake on AC Enables or disables the computer to turn on and go to boot when AC power is supplied to the computer. By default, the Wake on AC option is disabled. First Power On Date Set Ownership Date Sets the ownership date or date of first power on for your computer.
  • Page 97 If the recovery key is not known this can result in data loss or an unnecessary operating system reinstall. For more information about this subject, search in the Knowledge Base Resource at Dell Support Site. Steps 1.
  • Page 98 ● USB drive formatted to the FAT32 file system (the drive does not have to be bootable) ● BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive ● AC power adapter must be connected to the computer ●...
  • Page 99 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. About this task To enter BIOS System Setup, press F2 immediately after a power-on or reboot. Steps 1.
  • Page 100 6. Connect the battery cable to the system board. 7. Replace the base cover. Clearing BIOS (System Setup) and System passwords About this task To clear the computer or BIOS passwords, contact Dell technical support as described at Contact Support. For more information, go to Dell Support Site.
  • Page 101 Figure 68. Enable block boot until cleared If Block Boot Until Cleared is set to ON, select BIOS-Setup to clear the alert so the computer boots up as per normal. Figure 69. Clear chassis intrusion alert If Block Boot Until Cleared is set to OFF, select Continue or BIOS-Setup to clear the alert so the computer boots up as per normal.
  • Page 102 Figure 70. Clear chassis intrusion alert NOTE: If Continue is selected, the user continues to see the alert each time the computer is turned on until the alert is cleared. To clear the alert, select ON in the Clear Intrusion Warning field in the Security submenu of the BIOS setup menu. Figure 71.
  • Page 103 ● 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 104 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 105 Backup media and recovery options It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell provides multiple options for recovering the Windows operating system on your Dell computer. For more information, see...
  • Page 106 6. Install the battery. 7. Install the base cover. 8. Connect the power adapter to the computer. 9. Turn on the computer. NOTE: For more information about performing a hard reset, search in the Knowledge Base Resource at the Dell Support Site. Troubleshooting...
  • Page 107 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 48. Self-help resources  Self-help resources Resource location Information about Dell products and services Dell Site Tips Contact Support In Windows search, type Contact Support, and press Enter.

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P190g