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Dell 14-3481 Service Manual

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Inspiron 3481
Service Manual
Computer Model: Inspiron 14-3481
Regulatory Model: P89G
Regulatory Type: P89G002

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Summary of Contents for Dell 14-3481

  • Page 1 Inspiron 3481 Service Manual Computer Model: Inspiron 14-3481 Regulatory Model: P89G Regulatory Type: P89G002...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, 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

    Contents 1 Before working inside your computer......................9 Before you begin ................................9 2 After working inside your computer......................10 3 Safety instructions............................11 Electrostatic discharge—ESD protection........................11 ESD field service kit .................................12 Components of an ESD field service kit........................12 ESD protection summary ............................12 Transporting sensitive components..........................13 Lifting equipment ...............................13 4 Recommended tools.............................14...
  • Page 4 13 Replacing the wireless card........................30 Procedure..................................30 Post-requisites.................................. 31 14 Removing the coin-cell battery........................32 Prerequisites..................................32 Procedure..................................32 15 Replacing the coin-cell battery........................33 Procedure..................................33 Post-requisites..................................33 16 Removing the fan............................34 Prerequisites..................................34 Procedure..................................34 17 Replacing the fan............................36 Procedure..................................36 Post-requisites..................................37 18 Removing the heat sink..........................38 Prerequisites..................................
  • Page 5 25 Replacing the touchpad..........................52 Procedure..................................52 Post-requisites..................................53 26 Removing the speakers..........................54 Prerequisites..................................54 Procedure..................................54 27 Replacing the speakers..........................55 Procedure..................................55 Post-requisites................................. 55 28 Removing the I/O board..........................56 Prerequisites..................................56 Procedure..................................56 29 Replacing the I/O board..........................58 Procedure ..................................58 Post-requisites.................................
  • Page 6 Procedure..................................74 37 Replacing the power button with fingerprint reader................... 76 Procedure ..................................76 Post-requisites..................................76 38 Removing the power-adapter port......................78 Prerequisites..................................78 Procedure..................................78 39 Replacing the power-adapter port......................80 Procedure..................................80 Post-requisites................................. 80 40 Removing the palm-rest and keyboard assembly..................82 Prerequisites..................................
  • Page 7 Procedure..................................97 49 Replacing the display hinges........................98 Procedure ..................................98 Post-requisites..................................98 50 Removing the display cable........................99 Prerequisites..................................99 Procedure..................................99 51 Replacing the display cable........................101 Procedure..................................101 Post-requisites.................................101 52 Removing the display back-cover and antenna assembly................103 Prerequisites..................................103 Procedure..................................103 53 Replacing the display back-cover and antenna assembly................104 Procedure..................................
  • Page 8 Flea power release................................116 Contents...

  • Page 9: Before Working Inside Your Computer

    Before working inside your computer NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before you begin Save and close all open files and exit all open applications. Shut down your computer. Click Start > Power >...

  • Page 10: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Replace all screws and ensure that no stray screws remain inside your computer. Connect any external devices, peripherals, or cables you removed before working on your computer. Replace any media cards, discs, or any other parts that you removed before working on your computer.

  • Page 11: Safety Instructions

    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 12: Esd Field Service Kit

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

  • Page 13: Transporting Sensitive Components

    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. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds.

  • Page 14: Recommended Tools

    Recommended tools The procedures in this document may require the following tools: • Philips screwdriver #1 • Flat-head screwdriver • Plastic scribe Recommended tools...

  • Page 15: Screw List

    Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.
  • Page 16 Component Secured to Screw type Quantity Screw image Touchpad (Support Palm-rest and keyboard M2x2.5 brackets) assembly Wireless-card bracket I/O board M2x5 Screw list...

  • Page 17: Removing The Base Cover

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Loosen the three captive screws on the base cover. Remove the six screws (M2.5x4) that secure the base cover to the palm-rest and keyboard assembly.
  • Page 18 NOTE: The following steps are applicable only if you want to further remove any other component from your computer. Disconnect the battery cable from the system board. Press and hold the power button for 5 seconds to ground the computer and drain the flea power. Removing the base cover...

  • Page 19: Replacing The Base Cover

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Connect the battery cable to the system board, if applicable.
  • Page 20 Replace the six screws (M2.5x4) that secure the base cover to the palm-rest and keyboard assembly. Tighten the three captive screws that secure the base cover to the palm-rest and keyboard assembly. Replacing the base cover...
  • Page 21 Replacing the base cover...

  • Page 22: Removing The Battery

    In such an instance, the entire system should be replaced. Contact https://www.dell.com/support assistance and further instructions. • Always purchase genuine batteries from https://www.dell.com or authorized Dell partners and re-sellers. Prerequisites Remove the base cover. Procedure Disconnect the battery cable from the system board.
  • Page 23 Removing the battery...

  • Page 24: Replacing The Battery

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly.

  • Page 25: Removing The Memory Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 26 Removing the memory modules...

  • Page 27: Replacing The Memory Modules

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory-module slot.

  • Page 28: Removing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 29 Removing the wireless card...

  • Page 30: Replacing The Wireless Card

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless card, do not place any cables under it.

  • Page 31: Post-Requisites

    Post-requisites Replace the base cover. Replacing the wireless card...

  • Page 32: Removing The Coin-Cell Battery

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. 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.

  • Page 33: Replacing The Coin-Cell Battery

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure With the positive-side facing up, snap the coin-cell battery into the battery socket on the I/O board.

  • Page 34: Removing The Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 35 Removing the fan...

  • Page 36: Replacing The Fan

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the screw holes on the fan with the screw holes on to the palm rest and keyboard board assembly.

  • Page 37: Post-Requisites

    Post-requisites Replace the base cover. Replacing the fan...

  • Page 38: Removing The Heat Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.
  • Page 39 Removing the heat sink...

  • Page 40: Replacing The Heat Sink

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.

  • Page 41: Removing The Solid-State Drive/Intel Optane Memory Module

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 42 Turn the solid-state drive shield/Intel Optane shield over. Remove the screw that secures the solid-state drive/Intel Optane to the solid-state drive shield/Intel Optane shield. Lift the solid-state drive/Intel Optane off the solid-state drive shield/Intel Optane shield. Removing the solid-state drive/Intel Optane memory module...

  • Page 43: Replacing The Solid-State Drive/Intel Optane Memory Module

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.

  • Page 44: Post-Requisites

    Post-requisites Replace the base cover. Replacing the solid-state drive/Intel Optane memory module...

  • Page 45: Removing The Hard Drive

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.
  • Page 46 Disconnect the interposer from the hard-drive assembly. Remove the four screws (M3x3) that secure the hard-drive bracket to the hard drive. Lift the hard-drive bracket off the hard drive. Removing the hard drive...
  • Page 47 Removing the hard drive...

  • Page 48: Replacing The Hard Drive

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.

  • Page 49: Post-Requisites

    Align the screw holes on the hard-drive assembly with the screw holes on the palm rest and keyboard assembly. Replace the four screws (M2x3) that secure the hard-drive assembly to the palm rest and keyboard assembly. Connect the hard-drive cable to the system board and close the latch to secure the cable. Post-requisites Replace the battery.

  • Page 50: Removing The Touchpad

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 51 Removing the touchpad...

  • Page 52: Replacing The Touchpad

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure NOTE: Ensure that the touchpad is aligned with the guides available on the palm-rest and keyboard assembly, and the gap on either sides of the touchpad is equal.

  • Page 53: Post-Requisites

    Post-requisites Replace the battery. Replace the base cover. Replacing the touchpad...

  • Page 54: Removing The Speakers

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.

  • Page 55: Replacing The Speakers

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure NOTE: If the rubber grommets are pushed out when removing the speakers, push them back in before replacing the speakers.

  • Page 56: Removing The I/O Board

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. Before removing the I/O board along with the coin-cell battery, it is recommended to note the BIOS setup program’s settings.
  • Page 57 Removing the I/O board...

  • Page 58: Replacing The I/O Board

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Using the alignment posts, place the I/O board on the palm rest and keyboard assembly.

  • Page 59: Removing The Display Assembly

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 60 Lift the palm-rest and keyboard assembly at an angle. Removing the display assembly...
  • Page 61 Slide and remove the palm-rest and keyboard assembly off the display assembly. Removing the display assembly...
  • Page 62 After performing all the above steps, you are left with display assembly. Removing the display assembly...
  • Page 63 Removing the display assembly...

  • Page 64: Replacing The Display Assembly

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure NOTE: Ensure that the hinges are opened to the maximum before replacing the display assembly on the palm-rest and keyboard assembly.

  • Page 65: Post-Requisites

    Post-requisites Replace the fan. Replace the wireless card. Replace the base cover. Replacing the display assembly...

  • Page 66: Removing The Power-Button Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.

  • Page 67: Replacing The Power-Button Board

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the power-button board into the slot on the palm rest and keyboard assembly.

  • Page 68: Removing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 69 Remove the screw (M2x4) that secures the system board to the palm-rest and keyboard assembly. Lift the system board off the palm-rest and keyboard assembly. Removing the system board...
  • Page 70 Removing the system board...

  • Page 71: Replacing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.

  • Page 72: Post-Requisites

    Replace the battery. Replace the base cover. Entering the Service Tag in the BIOS setup program Turn on or restart your computer. Press F2 when the Dell logo is displayed to enter the BIOS setup program. Replacing the system board...
  • Page 73 Navigate to the Main tab and enter the Service Tag in the Service Tag Input field. NOTE: Service tag is the alphanumeric identifier located at the back side of your computer. Replacing the system board...

  • Page 74: Removing The Power Button With Fingerprint Reader

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Applicable only for computers that are shipped with fingerprint reader.
  • Page 75 Removing the power button with fingerprint reader...

  • Page 76: Replacing The Power Button With Fingerprint Reader

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Applicable only for computers that are shipped with fingerprint reader.
  • Page 77 Replace the hard drive. Replace the solid-state drive/Intel Optane. Replace the heat sink. Replace the fan. Replace the wireless card. Replace the memory modules. Replace the battery. Replace the base cover. Replacing the power button with fingerprint reader...

  • Page 78: Removing The Power-Adapter Port

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 79 Removing the power-adapter port...

  • Page 80: Replacing The Power-Adapter Port

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the power-adapter port into the slot on the palm rest and keyboard assembly.
  • Page 81 Replace the wireless card. Replace the memory modules. Replace the battery. Replace the base cover. Replacing the power-adapter port...

  • Page 82: Removing The Palm-Rest And Keyboard Assembly

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 83 Removing the palm-rest and keyboard assembly...

  • Page 84: Replacing The Palm-Rest And Keyboard Assembly

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the palm-rest and keyboard assembly on a flat surface.
  • Page 85 Replace the touchpad. Replace the hard drive. Replace the solid-state drive/Intel Optane. Replace the heat sink. Replace the fan. Replace the wireless card. Replace the memory modules. Replace the battery. Replace the base cover. Replacing the palm-rest and keyboard assembly...

  • Page 86: Removing The Display Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 87 Removing the display bezel...

  • Page 88: Replacing The Display Bezel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the display bezel with the display back-cover and antenna assembly, and then gently snap the display bezel into place.

  • Page 89: Post-Requisites

    Post-requisites Replace the display assembly. Replace the fan. Replace the wireless card. Replace the base cover. Replacing the display bezel...

  • Page 90: Removing The Camera

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 91 Removing the camera...

  • Page 92: Replacing The Camera

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Connect the camera cable to the camera module. Using the alignment post, adhere the camera module on the display back-cover and antenna assembly.

  • Page 93: Removing The Display Panel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 94 Peel the tape that secures the display cable to the back of the display panel. Lift the latch and disconnect the display cable from the display-panel cable connector. Lift the display panel away from the display back-cover and antenna assembly. Removing the display panel...

  • Page 95: Replacing The Display Panel

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the display panel on a flat and clean surface.

  • Page 96: Post-Requisites

    Post-requisites Replace the display bezel. Replace the display assembly. Replace the fan. Replace the wireless card. Replace the base cover. Replacing the display panel...

  • Page 97: Removing The Display Hinges

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.

  • Page 98: Replacing The Display Hinges

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Align the screw holes on the hinges and brackets with the screw holes on the display back-cover and antenna assembly.

  • Page 99: Removing The Display Cable

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
  • Page 100 Removing the display cable...

  • Page 101: Replacing The Display Cable

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the display cable and camera cable on the display back-cover and antenna assembly.
  • Page 102 Replace the fan. Replace the wireless card. Replace the base cover. Replacing the display cable...

  • Page 103: Removing The Display Back-Cover And Antenna Assembly

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.

  • Page 104: Replacing The Display Back-Cover And Antenna Assembly

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the display back-cover and antenna assembly on a clean and flat surface.

  • Page 105: Device Drivers

    Device drivers Intel Chipset Software Installation Utility In the Device Manager, check if the chipset driver is installed. Install the Intel chipset updates from www.dell.com/support. Video drivers In the Device Manager, check if the video driver is installed. Install the video driver update from www.dell.com/support.

  • Page 106: System Setup

    Entering BIOS setup program Turn on (or restart) your computer. During POST, when the DELL logo is displayed, watch for the F2 prompt to appear, and then press F2 immediately. NOTE: The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch for it, and then press F2.

  • Page 107: System Setup Options

    • Access System Setup by pressing F2 key • Bring up the one-time boot menu by pressing F12 key The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: •...
  • Page 108 General-System Information Processor L2 Cache Displays the processor L2 Cache size. Processor L3 Cache Displays the processor L3 Cache size. HT Capable Displays whether the processor is HyperThreading (HT) capable. 64-Bit Technology Displays whether 64-bit technology is used. Device Information SATA-0 Displays the M.2 SATA SSD-0 device information of the computer.
  • Page 109 System Configuration Enable External USB Port Enable or disable booting from USB mass storage devices connected to external USB port. Audio Enable or disable the integrated audio controller. Keyboard Illumination Enables you to choose the operating mode of the keyboard illumination feature. Keyboard Backlight Timeout on AC When the backlight is enabled, this feature defines the timeout value for the keyboard backlight when an AC adapter is plugged into the computer.
  • Page 110 Table 7. System setup options—Secure Boot menu Secure Boot Secure Boot Enable Enable or disable the secure boot feature. Secure Boot Mode Modifies the behavior of Secure Boot to allow evaluation or enforcement of UEFI driver signatures. Expert Key Management Expert Key Management Enable or disable Expert Key Management.
  • Page 111 Intel Software Guard Extensions POST Behavior Adapter Warnings Enable adapter warnings. Default: Enabled. Numlock Enable Enables the NumLock funcltion when computer boots. Fn Lock Options Enable or disable the Fn lock mode. Fastboot Enable to set the speed of the boot process. Default: Thorough.

  • Page 112: Clearing Cmos Settings

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

  • Page 113: Troubleshooting

    Copy the BIOS setup program file to the bootable USB drive. Connect the bootable USB drive to the computer that needs the BIOS update. Restart the computer and press F12 when the Dell logo is displayed on the screen. Boot to the USB drive from the One Time Boot Menu.

  • Page 114: Running The Epsa Diagnostics

    Running the ePSA diagnostics Turn on your computer. As the computer boots, press the F12 key as the Dell logo appears. On the boot menu screen, select the Diagnostics option. Click the arrow at the bottom left corner.

  • Page 115: Enabling Intel Optane Memory

    Table 14. Diagnostics Light pattern Problem description CPU failure System board: BIOS and ROM failure No memory or RAM detected Memory or RAM failure Invalid memory installed System board or chipset error LCD failure CMOS battery failure PCI or video card or chip failure Recovery image not found Recovery image found but invalid Power rail failure...

  • Page 116: Wifi Power Cycle

    On the Intel Optane memory tab, click Disable to disable the Intel Optane memory. NOTE: For computers in which Intel Optane memory acts as a primary storage, do not disable the Intel Optane memory. The Disable option will be grayed out. Click Yes if you accept the warning.

This manual is also suitable for:

Inspiron 3481

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