Dell Inspiron 16 Plus 7620 Service Manual
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Dell Inspiron 16 Plus 7620 Service Manual

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Inspiron 16 Plus 7620
Service Manual - NVIDIA GeForce RTX 3060
Regulatory Model: P117F
Regulatory Type: P117F003/P117F004
April 2022
Rev. A00

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Summary of Contents for Dell Inspiron 16 Plus 7620

  • Page 1 Inspiron 16 Plus 7620 Service Manual - NVIDIA GeForce RTX 3060 Regulatory Model: P117F Regulatory Type: P117F003/P117F004 April 2022 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2022 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

    Contents Chapter 1: Identifying the correct manual for your Inspiron 16 Plus 7620........5 Chapter 2: Working inside your computer..................6 Safety instructions................................6 Before working inside your computer........................6 After working inside your computer..........................9 Chapter 3: Removing and installing components................10 Recommended tools................................10...
  • Page 4 Updating the BIOS from the F12 One-Time boot menu..................63 Chapter 6: Troubleshooting......................65 Handling swollen Lithium-ion batteries........................65 Locate the Service Tag or Express Service Code of your Dell computer ..........65 System-diagnostic lights..............................66 SupportAssist | On-board Diagnostics......................... 67 Recovering the operating system..........................67 WiFi power cycle................................

  • Page 5: Chapter 1: Identifying The Correct Manual For Your Inspiron 16 Plus 7620

    Identifying the correct manual for your Inspiron 16 Plus 7620 The internal layout of the components and the design of the system board of your Inspiron 16 Plus 7620 will differ depending on the graphics card configuration you have ordered.

  • Page 6: Chapter 2: 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 7 Ensure that your computer is shut down and the AC adapter is disconnected. a. Hold <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen. b. Press any key to continue.
  • Page 8 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 9: After Working Inside Your Computer

    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 10: Chapter 3: Removing And Installing Components

    Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ●...

  • Page 11: Major Components Of Inspiron 16 Plus 7620

    M2x5 Power button with fingerprint M2x1.8 reader Power button board M2x3 Power-adapter port M2.5x5 Display hinges M2.5x5 Major components of Inspiron 16 Plus 7620 The following image shows the major components of Inspiron 16 Plus 7620. Removing and installing components...
  • Page 12 1. Base cover 2. Power-adapter port 3. Speaker (tweeters) module 4. Memory module 5. Right Fan 6. System board 7. Battery 8. Speaker (woofers) module 9. Palm-rest and keyboard assembly 10. Display assembly 11. Wireless card 12. M.2 2280 solid-state drive 13.

  • Page 13: Base Cover

    17. Power board NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.

  • Page 14: Installing The Base Cover

    Steps 1. Remove the seven screws (M2x4) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry the base cover from the top left and continue to work on the sides to open the base cover. 4.
  • Page 15 Removing and installing components...

  • Page 16: Memory Module

    Steps 1. Ensure that the battery cable has been connected to the system board. 2. Place and snap the base cover into place on the palm-rest and keyboard assembly. 3. Tighten the two captive screws on the base cover that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 17: Installing The Memory Module

    Steps 1. Lift the Mylar covering the memory module. 2. Using your fingertips, carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops-up. 3. Remove the memory module from the memory-module slot on the system board. NOTE: If your computer has two memory modules installed, repeat steps 1 to 3 for the memory module installed in the second memory slot.
  • Page 18 Steps 1. Lift the Mylar covering the memory-module slot. 2. Align the notch on the memory module with the tab on the memory-module slot on the system board. 3. Slide the memory module into the memory-module slot on the system board. 4.

  • Page 19: Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 20: Installing The M.2 2230 Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 21: Removing The M.2 2280 Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 22: Installing The M.2 2280 Solid-State Drive

    If you are replacing the M.2 2280 solid-state drive (shipped with the computer) with an M.2 2230 solid-state drive, a mounting bracket for the M.2 2230 solid-state drive is required. Please contact Dell support to purchase the mounting bracket for the M.2 2230 solid-state drive.

  • Page 23: Wireless Card

    Steps 1. Align the notch on the M.2 2280 solid-state drive with the tab on the solid-state drive slot. 2. Slide the M.2 2280 solid-state drive into the solid-state drive slot 3. Slide the M.2 thermal shield back in place and replace the screw (M2x3) that secures it to the system board. Next steps 1.

  • Page 24: Installing The Wireless Card

    Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the system board. 2. Lift the wireless-card bracket off the wireless card. 3. Disconnect the antenna cables from the wireless card. 4. Slide and remove the wireless card from the wireless-card slot. Installing the wireless card Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 25 Steps 1. Align the notch on the wireless card with the tab on the wireless-card slot and insert the wireless card at an angle into the wireless-card slot. 2. Connect the antenna cables to the wireless card. Table 2. Antenna-cable color scheme Connectors on the Antenna-cable color Silkscreen marking...

  • Page 26: Battery

    ● 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 lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.

  • Page 27: Installing The Battery

    Steps 1. Disconnect the battery cable from the system board. 2. Remove the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Lift the battery off the palm-rest and keyboard assembly. Installing the battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 28: Fans

    Steps 1. Align the screw holes on the battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the system board. Next steps 1.

  • Page 29: Installing The Left Fan

    Installing the left fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image(s) indicate the location of the left fan and provides a visual representation of the installation procedure. Steps 1.

  • Page 30: Installing The Right Fan

    Steps 1. Peel back the Mylar covering the right fan. 2. Peel back the Mylar covering the right fan cable. 3. Disconnect the right-fan cable from the system board. 4. Remove the two screws (M2x5) that secure the right fan to the palm-rest and keyboard assembly. 5.

  • Page 31: Heat Sink

    Steps 1. Align the screw holes of the right fan with the screw holes on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x5) that secure the right fan to the palm-rest and keyboard assembly. 3. Connect the right-fan cable to the system board. 4.

  • Page 32: Installing The Heat Sink

    Steps 1. In reverse sequential order (7>6>5>4>3>2>1), loosen the seven captive screws that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image(s) indicate the location of the heat sink and provides a visual representation of the installation procedure.

  • Page 33: Display Assembly

    Steps 1. Align the captive screws on the heat sink to the screw holes on the system board. 2. In sequential order (1>2>3>4>5>6>7), tighten the seven captive screws that secure the heat sink to the system board. Next steps 1. Install the base cover.
  • Page 34 Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge to the system board. 2. Open the left display hinge at an angle of 90 degrees. 3. Remove the two screws (M2.5x5) that secure the right display hinge to the system board. 4.

  • Page 35: Installing The Display Assembly

    Installing the display assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image(s) indicate the location of the display assembly and provides a visual representation of the installation procedure.

  • Page 36: Speakers

    3. Close the left display hinge and align the screw holes on the left display hinge with the screw holes on the palm-rest and keyboard assembly. 4. Replace the two screws (M2.5x5) that secure the left display hinge to the palm-rest and keyboard assembly. 5.

  • Page 37: Installing The Speakers (Woofers)

    Steps 1. Open the latch and disconnect the touchpad cable from the system board. 2. Peel the tapes that secure the antenna cables to the system board. 3. Peel the tapes that secure the speaker (woofers) cable to the system board. 4.
  • Page 38 About this task The following image(s) indicate the location of the speakers (woofers) and provides a visual representation of the installation procedure. Steps 1. Using the alignment posts, place the speakers (woofers) on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2.

  • Page 39: Removing The Speakers (Tweeters)

    2. Install the battery 3. Install the base cover. 4. Follow the procedure in After working inside your computer. Removing the speakers (tweeters) 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.

  • Page 40: Power-Button Board

    Steps 1. Using the alignment posts, place the speakers (tweeters) on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Connect the speaker (tweeters) cable to the system board. Next steps 1.

  • Page 41: Installing The Power-Button Board

    Steps 1. Open the latch and disconnect the power-button board cable from the system board. 2. Remove the screw (M2x3) that secures the power-button board to the palm-rest and keyboard assembly. 3. Lift the power-button board and its cable off the palm-rest and keyboard assembly. Installing the power-button board Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 42: Power Button With Optional Fingerprint Reader

    Steps 1. Place the power-button board on the palm-rest and keyboard assembly. 2. Align the screw holes of the power-button board with the screw holes on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secures the power-button board to the palm-rest and keyboard assembly. 4.

  • Page 43: Installing The Power Button With Optional Fingerprint Reader

    About this task The following image(s) indicate the location of the power button with optional fingerprint reader and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x1.8) that secures the power button with optional fingerprint reader to the palm-rest and keyboard assembly.

  • Page 44: System Board

    Steps 1. Place the power button with optional fingerprint reader on the palm-rest and keyboard assembly. 2. Align the screw hole on the power button with optional fingerprint reader with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x1.8) that secures the power button with optional fingerprint reader to the palm-rest and keyboard assembly.
  • Page 45 About this task The following image indicates the connectors on your system board. System board (front) System board (back) 1. Speaker (tweeters) cable connector 2. Display-cable connector 3. Keyboard-cable connector 4. Keyboard-backlight cable connector 5. Speaker (woofers) cable connector 6. Touchpad-cable connector 7.
  • Page 46 Steps 1. Disconnect the speaker (tweeter) cable from the system board. 2. Peel the clear adhesive tape off the display-cable connector. 3. Open the latch and disconnect the display cable from the system board. 4. Remove the two screws (M2x5) that secure the Type-C port bracket to the system board. 5.

  • Page 47: Installing The System Board

    10. Open the latch and disconnect the touchpad cable from the system board. 11. Open the latch and disconnect the power-button board cable from the system board. 12. Remove the four screws (M2x3) that secure the system board to the palm-rest and keyboard assembly. 13.
  • Page 48 1. Speaker (tweeters) cable connector 2. Display-cable connector 3. Keyboard-cable connector 4. Keyboard-backlight cable connector 5. Speaker (woofers) cable connector 6. Touchpad-cable connector 7. Power button cable connector 8. Power-cable connector The following image(s) indicate the location of the system board and provides a visual representation of the installation procedure.
  • Page 49 Steps 1. Connect the power-adapter port cable to the system board. 2. Adhere the tape that secures the power-adapter port to the system board. 3. Gently turn over the system board and place the system board on the palm-rest and keyboard assembly. 4.

  • Page 50: Power-Adapter Port

    10. Place the Type-C port-bracket on the system board. 11. Replace the two screws (M2x5) that secure the Type-C port-bracket to the system board. 12. Connect the keyboard cable to the system board and close the latch. 13. Connect the keyboard-backlight cable to system board and close the latch. 14.

  • Page 51: Installing The Power-Adapter Port

    Steps 1. Remove the two screws (M2.5x5) that secure the right display hinge to the system board. 2. Open the right display hinge at an angle of 90 degrees. 3. Lift the power-adapter port and its cable off the palm-rest and keyboard assembly. Installing the power-adapter port Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 52: Palm-Rest And Keyboard Assembly

    Steps 1. Place the power-adapter port into the slot on the palm-rest and keyboard assembly. 2. Close the right display hinge and align the screw holes on the right display hinge with the screw holes on the system board. 3. Replace the two screws (M2.5x5) that secure the right display hinge to the system board. Next steps 1.

  • Page 53: Installing The Palm-Rest And Keyboard Assembly

    Steps After performing the pre-requisites, you are left with the palm-rest and keyboard assembly. NOTE: The palm-rest and keyboard assembly consists of the following components: ● Palm rest ● Keyboard ● Wireless antenna (2) ● Touchpad Installing the palm-rest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 54 Steps Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest and keyboard assembly. NOTE: The palm-rest and keyboard assembly consists of the following components: ● Palm rest ● Keyboard ●...

  • Page 55: Chapter 4: Drivers And Downloads

    Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347. Drivers and downloads...

  • Page 56: Chapter 5: System Setup

    System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.

  • Page 57: Boot Sequence

    Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: ● Access System Setup by pressing F2 key ●...
  • Page 58 Table 4. System setup options—System information menu (continued) Overview Processor ID Displays the processor identification code. Processor L2 Cache Displays the processor L2 Cache size. Processor L3 Cache Displays the processor L3 Cache size. Microcode Version Displays the microcode version. Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.
  • Page 59 Table 5. System setup options—Boot Configuration menu (continued) Boot Configuration Expert Key Management Enable Custom Mode Allows the PK, KEK, db, and dbx security key databases to be modified. Default: OFF NOTE: If Custom Mode is not enabled, any changes made with respect to the keys will not be saved.
  • Page 60 Enables or disables cloud Service OS recovery if the main OS fails to boot within the number of failures equal or greater than the value specified by Dell Auto OS Recovery Threshold, and local Service does not boot, or is not installed.

  • Page 61: System And Setup Password

    Table 12. System setup options—Pre-boot Behavior menu Pre-boot Behavior Adapter warnings Enable Adapter warnings Enables or disables the computer to display adapter warning messages when adapters with too little power capacity are detected. Default: ON Warnings and Errors Selects an action on encountering a warning or error during boot. Default: Prompt on Warnings and Errors.

  • Page 62: Deleting Or Changing An Existing System Setup Password

    About this task To enter the system setup, press F12 immediately after a power-on or reboot. Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ●...

  • Page 63: 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 on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.
  • Page 64 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 65: Chapter 6: 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 66: System-Diagnostic Lights

    You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Table 15. Diagnostic-light LED codes...

  • Page 67: Supportassist | On-Board Diagnostics

    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 68: Wifi Power Cycle

    WiFi power cycle About this task If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.

  • Page 69: Chapter 7: 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 16. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app...

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