Contents Chapter 1: Identifying the correct manual for your Inspiron 16 Plus 7620........6 Chapter 2: Working inside your computer..................7 Safety instructions................................7 Before working inside your computer........................7 After working inside your computer........................10 Chapter 3: Removing and installing components................11 Recommended tools................................11...
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Updating the BIOS from the F12 One Time Boot menu..................83 Chapter 6: Troubleshooting......................84 Handling swollen rechargeable Li-ion batteries......................84 Locating the Service Tag or Express Service Code of your Dell computer ............84 System-diagnostic lights..............................84 SupportAssist | On-board Diagnostics.........................86 Contents...
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Recovering the operating system..........................86 Wi-Fi power cycle................................86 Chapter 7: Getting help and contacting Dell................88 Contents...
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.
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.
NOTE: Ensure that your computer is shut down and the power adapter is disconnected. a. Press and hold the B key and the power button on the keyboard for 3 seconds or until the Dell logo appears on the screen.
It is recommended to always use the traditional wired ESD grounding wrist strap and protective anti-static mat when servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while performing service and use anti-static bags for transporting sensitive components.
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.
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 ●...
Power-button board M2x3 Power-adapter port M2.5x5 I/O board M2x3 Touchpad bracket M1.6x2 Touchpad M2x1.8 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...
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1. Base cover 2. Power-adapter port 3. Memory module 4. Speaker (tweeters) module 5. Right Fan 6. System board 7. Battery 8. Speaker (woofers) module 9. Palm-rest and keyboard assembly 10. Display assembly 11. I/O board 12. Wireless card 13. M.2 2280 solid state drive 14.
18. Power board 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.
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.
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.
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. Installing the memory module Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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.
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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.
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.
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.
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.
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. Install the base cover. 2.
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.
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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 Connector on the Antenna-cable color Silkscreen marking...
● 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.
Steps 1. Disconnect the battery cable from the system board. 2. Remove the five screws (M2x3) that secure the 3-cell battery to the palm-rest and keyboard assembly. 3. Lift the 3-cell battery off the palm-rest and keyboard assembly. Installing the 3-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Align the screw holes on the 3-cell battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the 3-cell battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the system board. Next steps 1.
Steps 1. Disconnect the battery cable from the system board. 2. Remove the five screws (M2x3) that secure the 6-cell battery to the palm-rest and keyboard assembly. 3. Lift the 6-cell battery off the palm-rest and keyboard assembly. Installing the 6-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Align the screw holes on the 6-cell battery with the screw holes on the palm-rest and keyboard assembly. 2. Replace the five screws (M2x3) that secure the 6-cell battery to the palm-rest and keyboard assembly. 3. Connect the battery cable to the system board. Next steps 1.
Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge to the system board. 2. Open the right display hinge at an angle of 90 degrees. 3. Peel the tape that secures the display-cable connector latch to the system board. 4.
Steps 1. Place the power-adapter port into the slot on the palm-rest and keyboard assembly. 2. Adhere the tapes that secure the power-adapter port cable to the system board. 3. Connect the power-adapter port cable to the system board. 4. Adhere the tape that secures the power-adapter port cable to the system board. 5.
Steps 1. Disconnect the left-fan cable from the system board. 2. Remove the two screws (M2x5) that secure the left fan to the palm-rest and keyboard assembly. 3. Lift the left fan off the palm-rest and keyboard assembly. Installing the left fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
Steps 1. Align the screw holes of the left fan with the screw holes on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x5) that secure the left fan to the palm-rest and keyboard assembly. 3. Connect the left fan cable to the system board. Next steps 1.
Steps 1. Disconnect the right-fan cable from the system board. 2. Remove the two screws (M2x5) that secure the right fan to the palm-rest and keyboard assembly. 3. Lift the right fan off the palm-rest and keyboard assembly. Installing the right fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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. Next steps 1.
Steps 1. In reverse sequential order (4, 3, 2, 1), loosen the four captive screws that secure the heat sink to the system board. 2. Lift the heat sink off the system board. Installing the heat sink (integrated graphics) Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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), tighten the four captive screws that secure the heat sink to the system board. Next steps 1.
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 (discrete graphics) Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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.
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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.
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.
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.
Steps 1. Peel the tape that secures the I/O-board cable connector latch to the I/O board. 2. Open the latch and disconnect the power-button board cable from the I/O board. 3. Open the latch and disconnect the fingerprint-reader cable from the I/O board. NOTE: This step is only applicable to computers shipped with a fingerprint reader.
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Steps 1. Align the screw holes on the I/O board with the screw holes on the system board and palm-rest and keyboard assembly. 2. Align the ports on the I/O board with the slots on the palm-rest and keyboard assembly. 3.
Speakers Removing the speakers (woofers) Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the base cover.
Steps 1. Open the latch and disconnect the touchpad cable from the system board. 2. Peel the tapes that secure the speaker (woofers) cable to the system board. 3. Disconnect the speaker (woofers) cable from the system board. 4. Remove the speaker (woofers) cable from the routing guides on the palm-rest and keyboard assembly. 5.
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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.
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.
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.
Steps 1. Remove the two screws (M2.5x5) that secure the left display hinge of the display assembly to the system board. 2. Open the left display hinge at an angle of 90 degrees. 3. Open the latch and disconnect the power-button board cable from the I/O board. 4.
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 two screws (M2x3) that secure the power-button board to the palm-rest and keyboard assembly. 4.
NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the base cover. 3. Remove the left fan. 4. Remove the heat sink.. 5. Remove the power-button board.
Steps 1. Place the power button on the palm-rest and keyboard assembly. 2. Align the screw hole on the power button with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x1.8) that secures the power button to the palm-rest and keyboard assembly. Next steps 1.
Steps 1. Remove the screw (M2x3) that secures the power button with fingerprint reader to the palm-rest and keyboard assembly. NOTE: This step is only applicable to computers shipped with a power button with fingerprint reader. 2. Open the latch and disconnect the finger-print reader cable from the I/O board. 3.
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Steps 1. Place the power button with fingerprint reader on the palm-rest and keyboard assembly. 2. Align the screw hole on the power button with fingerprint reader with the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x3) that secures the power button with fingerprint reader to the palm-rest and keyboard assembly. 4.
System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the base cover.
Steps 1. Disconnect the speaker (tweeter) cable from the system board. 2. Peel off the adhesive tape that secures the power-adapter port cable to the system board. 3. Disconnect the power-adapter port cable from the system board. 4. Peel the clear adhesive tape off the display-cable connector. 5.
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About this task The following image indicates the connectors on your system board. 1. Speaker (tweeters) cable connector 2. Power-cable connector 3. Display-cable connector 4. Right fan cable connector 5. Keyboard-cable connector 6. Keyboard-backlight cable connector 7. Speaker (woofers) cable connector 8.
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Steps 1. Install the system board at an angle and ensure that the ports are properly aligned with the port openings. 2. Place the system board on the palm-rest and keyboard assembly. 3. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. 4.
2. Install the heat sink (integrated graphics) or the heat sink (discrete graphics), whichever is applicable. 3. Install the wireless card. 4. Install the M.2 2230 solid-state drive M.2 2280 solid-state drive, whichever applicable. 5. Install the memory module. 6. Install the base cover.
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: ● Keyboard ● Wireless antenna (2) ● Touchpad module Installing the palm-rest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
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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: ● Keyboard ● Wireless antenna (2) ●...
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. Drivers and downloads...
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.
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 ●...
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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.
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Table 5. 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. NOTE: For Secure Boot to be enabled, the computer is required to be in UEFI boot mode and the Enable Legacy Option ROMs option is required to be turned off.
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By default, the Video/Power only on Type-C Ports option is disabled. Type-C Dock Type-C Dock Override Enables or disables to use connected Type-C Dell Dock to provide data stream with external USB ports disabled. When Type-C Dock override is enabled, the Video/Audio/LAN submenu is activated.
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Table 7. System setup options—Storage menu Storage SATA/NVMe Operation SATA/NVMe Operation Sets the operating mode of the integrated SATA hard drive controller. By default, the AHCI/NVMe option is selected. The storage device is configured for AHCI/NVMe mode. Storage Interface Displays the information of various onboard drives. Port Enablement Enables or disables the M.2 PCIe SSD option.
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USB Wake Support Wake on Dell USB-C Dock When enabled, connecting a Dell USB-C Dock wakes the computer from Standby, Hibernate, and Power Off. By default, the Wake on Dell USB-C Dock option is enabled. Block Sleep Enables or disables the computer from entering Sleep (S3) mode in the operating system.
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TPM On Allows you to enable or disable TPM. By default, the TPM On option is enabled. For additional security, Dell Technologies recommends keeping TPM On enabled to allow these security technologies to fully function. Physical Presence Interface (PPI) Bypass...
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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. TPM State Enables or disables the Trusted Platform Module (TPM).
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When set to Disabled, no notification is displayed and no event is logged in the BIOS Events log. By default, the Chassis Intrusion Detection option is enabled. For additional security, Dell Technologies recommends keeping the Chassis Intrusion Detection option enabled. Block Boot Until Cleared Enables or disables the Block Boot Until Cleared option.
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By default, the Start Data Wipe option is disabled. Absolute Absolute Software provides various cyber security solutions, some requiring software preloaded on Dell computers and integrated into the BIOS. To use these features, you must enable the Absolute BIOS setting and contact Absolute for configuration and activation.
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Allows you to control the automatic boot flow for SupportAssist System Resolution Console and for Dell operating system Recovery Tool. By default, the Dell Auto OS Recovery Threshold value is set to 2. Table 13. System setup options—System Management menu ...
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Table 14. System setup options—Keyboard menu (continued) Keyboard By default, the 10 seconds option is selected. Device Configuration HotKey Access Allows you to control whether you can access device configuration screens through hotkeys during computer startup. By default, the Device Configuration HotKey Access option is enabled. NOTE: This setting controls only the Intel RAID (CTRL+I), MEBX (CTRL+P), and LSI RAID (CTRL+C) Option ROMs.
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● Intel Virtualization Technology - X ● Intel Virtualization Technology - Direct By default, the Intel Trusted Execution Technology (TXT) option is enabled. For additional security, Dell Technologies recommends keeping the Intel Trusted Execution Technology (TXT) option enabled. DMA Protection...
Table 17. System setup options—Performance menu (continued) Performance Enable Intel SpeedStep Technology Enables the computer to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production. By default, the Enable Intel SpeedStep Technology option is enabled. C-State Control Enable C-State Control Enables or disables the ability of the CPU to enter and exit low-power state.
Table 19. System and setup password (continued) Password type Description Setup password Password that you must enter to access and make changes to the BIOS settings of your computer. You can create a system password and a setup password to secure your computer. CAUTION: The password features provide a basic level of security for the data on your computer.
2. Wait for one minute. 3. Exit Service Mode. 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.
Time Boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.
● 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.
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The following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems. 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. Table 20. Diagnostic-light codes ...
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into the primary operating system due to software or hardware failures.
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6. Turn on the modem. 7. Turn on the computer. Troubleshooting...
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 21. Self-help resources Self-help resources Resource location Information about Dell products and services Dell Site My Dell app...
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