Dell D19M Service Manual
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Dell D19M Service Manual

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Inspiron 3668
Service Manual
Regulatory Model: D19M
Regulatory Type: D19M003

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Summary of Contents for Dell D19M

  • Page 1 Inspiron 3668 Service Manual Regulatory Model: D19M Regulatory Type: D19M003...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 - 2019 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..................... 7 Before you begin ...................................7 2 After working inside your computer....................8 3 Safety instructions........................9 4 Recommended tools........................10 5 Screw list........................... 11 6 Inside view of your computer....................... 12 7 System board components......................13 8 Removing the computer cover .....................14 Procedure....................................14 9 Replacing the computer cover .....................15...
  • Page 4 Post-requisites..................................24 16 Removing the 3.5-inch hard drive....................25 Prerequisites..................................25 Procedure..................................... 25 17 Replacing the 3.5-inch hard drive....................28 Procedure..................................... 28 Post-requisites..................................28 18 Removing the 2.5-inch hard drive....................29 Prerequisites..................................29 Procedure..................................... 29 19 Replacing the 2.5-inch hard drive....................31 Procedure....................................31 Post-requisites..................................31 20 Removing the optical drive......................
  • Page 5 Post-requisites..................................44 28 Removing the power-button module..................45 Prerequisites..................................45 Procedure..................................... 45 29 Replacing the power-button module...................47 Procedure..................................... 47 Post-requisites..................................47 30 Removing the chassis fan......................48 Prerequisites..................................48 Procedure..................................... 48 31 Replacing the chassis fan......................50 Procedure.....................................50 Post-requisites..................................50 32 Removing the power-supply unit....................51 Prerequisites..................................
  • Page 6 BIOS overview..................................62 Entering BIOS setup program............................62 System setup options................................. 62 Clearing Forgotten Passwords............................66 Prerequisites...................................66 Procedure..................................66 Post-requisites................................67 Clearing CMOS Settings..............................68 Prerequisites...................................68 Procedure..................................68 Post-requisites................................69 41 Flashing the BIOS........................70 42 Getting help and contacting Dell....................71 Contents...

  • Page 7: 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. Topics: • Before you begin Before you begin 1. Save and close all open files and exit all open applications. 2.

  • Page 8: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. 1. Replace all screws and ensure that no stray screws remain inside your computer. 2. Connect any external devices, peripherals, or cables you removed before working on your computer. 3.

  • Page 9: Safety Instructions

    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 shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 10: Recommended Tools

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

  • Page 11: Screw List

    Screw list The following table provides the list of screws that are used for securing different components to the computer. Table 1. Screw list Component Secured to Screw type Quantity Computer cover Chassis #6-32xL6.35 Chassis fan Chassis #6-32xL6.35 3.5-inch hard drive Side-chassis #6-32xL6.35 3.5-inch hard drive...

  • Page 12: Inside View Of Your Computer

    Inside view of your computer 1. system board 2. graphics card (PCIe x 16) 3. processor fan and heat-sink assembly 4. memory module 5. optical drive 6. 3.5-inch hard-drive assembly 7. 2.5-inch hard-drive assembly 8. side-chassis 9. wireless card 10. power-supply unit Inside view of your computer...

  • Page 13: System Board Components

    System board components 1. power-button cable connector 2. optical drive power-cable connector 3. SATA 1 connector 4. SATA 0 connector 5. SATA 2 connector 6. SATA 3 connector 7. wireless-card slot 8. hard drive power-cable connector 9. power-supply unit cable connector 10.

  • Page 14: Removing The Computer Cover

    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. Topics: • Procedure Procedure 1. Remove the two screws (#6-32xL6.35) that secure the cover to the chassis.

  • Page 15: Replacing The Computer Cover

    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. Topics: • Procedure Procedure 1. Align the tabs on the computer cover with the slots on the chassis and slide it towards the front of the computer.

  • Page 16: Removing The Front 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. Topics: • Prerequisites • Procedure...
  • Page 17 Removing the front bezel...

  • Page 18: Replacing The Front 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 19: 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. Topics: • Prerequisites • Procedure...
  • Page 20 Removing the memory modules...

  • Page 21: Replacing 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 22: Removing The Graphics 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. Topics: • Prerequisites • Procedure...
  • Page 23 4. Push the securing tab on the PCIe slot away from the graphics card. 5. Grasp the card by its top corner and lift it out of the slot. Removing the graphics card...

  • Page 24: Replacing The Graphics 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 25: Removing The 3.5-Inch Hard Drive

    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. Topics: • Prerequisites • Procedure...
  • Page 26 6. Using the release tabs on the hard-drive assembly, slide the hard-drive assembly out of the slot on the side-chassis. 7. Remove the four screws (#6-32xL3.6) that secure the hard-drive bracket to the hard drive. 8. Lift the hard drive off the hard-drive bracket. Removing the 3.5-inch hard drive...
  • Page 27 Removing the 3.5-inch hard drive...

  • Page 28: Replacing The 3.5-Inch Hard Drive

    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. Topics: • Procedure • Post-requisites...

  • Page 29: Removing The 2.5-Inch Hard Drive

    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. Topics: • Prerequisites • Procedure...
  • Page 30 7. Pry the hard-drive bracket to release the tabs on the bracket from the slots on the hard drive. 8. Lift the hard drive off the hard-drive bracket. NOTE: Note the orientation of the hard drive so that you can replace it correctly. Removing the 2.5-inch hard drive...

  • Page 31: Replacing The 2.5-Inch Hard Drive

    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. Topics: • Procedure • Post-requisites...

  • Page 32: Removing The Optical Drive

    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. Topics: • Prerequisites • Procedure...
  • Page 33 5. Rotate the side-chassis towards the computer until it snaps into place. 6. Remove the screw (#6-32xL3.6) that secures the optical-drive assembly to the side-chassis. 7. Gently slide the optical-drive assembly out of the optical-drive bay through the front of the computer. 8.
  • Page 34 10. Gently pull and disconnect the optical-drive bezel from the optical drive. Removing the optical drive...

  • Page 35: Replacing The Optical Drive

    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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 36: Removing The Coin-Cell Battery

    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 37 Removing the coin-cell battery...

  • Page 38: Replacing The Coin-Cell Battery

    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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 39: 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. Topics: • Prerequisites • Procedure...
  • Page 40 Removing the wireless card...

  • Page 41: Replacing 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 42: Removing The Antenna 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. Topics: • Prerequisites • Procedure Prerequisites 1.
  • Page 43 Removing the antenna modules...

  • Page 44: Replacing The Antenna 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 45: Removing The Power-Button 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. Topics: • Prerequisites • Procedure...
  • Page 46 Removing the power-button module...

  • Page 47: Replacing The Power-Button 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 48: Removing The Chassis 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. Topics: • Prerequisites • Procedure...
  • Page 49 Removing the chassis fan...

  • Page 50: Replacing The Chassis 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 51: Removing The Power-Supply Unit

    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. Topics: • Prerequisites • Procedure...
  • Page 52 6. Remove the three screws (#6-32xL6.35) that secure the power-supply unit to the chassis. 7. Press the clamp and slide the power-supply unit towards the front of the chassis to release it from the chassis. 8. Lift the power-supply unit, along with the cables, off the chassis. Removing the power-supply unit...

  • Page 53: Replacing The Power-Supply Unit

    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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 54: Removing The Processor 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. Topics: • Prerequisites • Procedure...
  • Page 55 Removing the processor fan...

  • Page 56: Replacing The Processor 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. Topics: • Procedure • Post-requisites Procedure 1.

  • Page 57: Removing The Processor Heat-Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease.

  • Page 58: Replacing The Processor Heat-Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease.

  • Page 59: 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 60 7. Remove the eight screws (#6-32xL6.35) that secure the system board to the chassis. 8. Lift the system board and remove it from the chassis. Removing the system board...

  • Page 61: 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 62: Bios Setup Program

    Entering BIOS setup program 1. Turn on (or restart) your computer. 2. 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 63 General-System Information Slot 2 Displays the PCI slot 2 information of the computer. Slot 3 Displays the PCI slot 3 information of the computer. Processor Information Processor Type Displays the processor type. Core Count Displays the number of cores on the processor. Processor ID Displays the processor identification code.
  • Page 64 System Configuration Enable External USB Port Enable or disable booting from USB mass storage devices connected to external USB port. Front USB Configuration Enable or disable front USB port(s) Rear USB Configuration Enable or disable rear USB port(s) Audio Enable or disable the integrated audio controller. Miscellaneous Devices Enable or disable various onboard devices.
  • Page 65 Table 7. System setup options—Intel Software Guard Extensions menu Intel Software Guard Extensions Intel SGX Enable Enable or disable Intel Software Guard Extensions. Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size. Performance Multi Core Support Enable multiple cores.

  • Page 66: Clearing Forgotten Passwords

    SupportAssist System Resolution Auto OS Recovery Threshold Control the automatic boot flow for SupportAssist System Resolution Console and for the Dell OS Recovery tool. SupportAssist OS Recovery Enable or disable the boot flow for the SupportAssist OS Recovery tool when certain system errors.

  • Page 67: Post-Requisites

    3. Locate the password jumper on the system board. NOTE: For more information on the location of the jumper, see System-board components. 4. Remove the jumper plug from the password jumper-pins. 5. Wait for 5 seconds and then replace the jumper plug in its original location. 6.

  • Page 68: Clearing Cmos Settings

    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 1. Remove the computer cover. 2. Remove the front bezel.

  • Page 69: Post-Requisites

    6. Rotate the side-chassis towards the computer until it snaps into place. Post-requisites 1. Replace the front bezel. 2. Replace the computer cover. BIOS setup program...

  • Page 70: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. Follow these steps to flash the BIOS: 1. Turn on your computer. 2. Go to www.dell.com/support. 3. Click Product support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.

  • Page 71: 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 12. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips Contact Support In Windows search, type Contact Support, and press Enter.

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Inspiron 3668

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