Dell Vostro 3888 Service Manual
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Dell Vostro 3888 Service Manual

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Vostro 3888
Service Manual
1
Regulatory Model: D29M
Regulatory Type: D29M002
May 2020
Rev. A00
Table of Contents
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Summary of Contents for Dell Vostro 3888

  • Page 1 Vostro 3888 Service Manual Regulatory Model: D29M Regulatory Type: D29M002 May 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 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: Working On Your Computer

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 4: Safety Precautions

    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 For this reason, some previously approved methods of handling parts are no longer applicable.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 5: 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.

  • Page 6: After Working Inside Your Computer

    CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device. 1. Get a firm balanced footing. Keep your feet apart for a stable base, and point your toes out. 2. Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load. 3.

  • Page 7: Technology And Components

    Technology and components This chapter details the technology and components available in the system. DDR4 DDR4 (double data rate fourth generation) memory is a higher-speed successor to the DDR2 and DDR3 technologies and allows up to 512 GB in capacity, compared to the DDR3's maximum of 128 GB per DIMM. DDR4 synchronous dynamic random-access memory is keyed differently from both SDRAM and DDR to prevent the user from installing the wrong type of memory into the system.

  • Page 8: Memory Errors

    Figure 3. Curved edge Memory Errors Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some portable systems.
  • Page 9 commonly known as USB 2.0 and 1.1 respectively, the slower modes still operate at 480 Mbps and 12 Mbps respectively and are kept to maintain backward compatibility. USB 3.0/USB 3.1 Gen 1 achieves the much higher performance by the technical changes below: •...

  • Page 10: Alternate Mode

    USB Type-C USB Type-C is a new, tiny physical connector. The connector itself can support various exciting new USB standards like USB 3.1 and USB power delivery (USB PD). Alternate Mode USB Type-C is a new connector standard that is very small. It is about a third the size of an old USB Type-A plug. This is a single connector standard that every device should be able to use.

  • Page 11: Advantages Of Hdmi

    • Content Type - Real-time signaling of content types between display and source devices, enabling a TV to optimize picture settings based on content type • Additional Color Spaces - Adds support for additional color models used in digital photography and computer graphics •...
  • Page 12 1. Call out also pending 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 13: Disassembly And Reassembly

    Disassembly and reassembly Recommended tools The procedures in this document require the following tools: • Phillips #0 screwdriver • Phillips #1 screwdriver • Philips #2 screwdriver • Plastic scribe-Recommended for field technician • T-30 torx screwdriver Screw List The following table shows the screw list and the images for different components. 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.

  • Page 14: Removing The Side Cover

    Table 2. Screw list(continued) Component Screw type Quantity Image 3.5 in. hard-drive #6-32 System board #6-32 M2x4 Side cover Removing the side cover Prerequisites 1. Follow the procedure in before working inside your computer. NOTE: Ensure that you remove the security cable from the security-cable slot (if applicable). About this task The following images indicate the location of the side panels and provide a visual representation of the removal procedure.

  • Page 15: Installing The Side Cover

    Installing the side cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the side panels and provides a visual representation of the installation procedure. Steps 1.
  • Page 16 3. Replace the two screws (6x32) to secure the side cover to the computer. Next steps 1. Follow the procedure in After working on your computer. Disassembly and reassembly...

  • Page 17: Removing The Front Bezel

    Front bezel Removing the front bezel Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. About this task The following images indicate the location of the front bezel and provide a visual representation of the removal procedure. Steps 1.

  • Page 18: Removing The Fan Duct

    About this task The following image indicates the location of the front bezel and provides a visual representation of the installation procedure. Steps 1. Position the front bezel to align the tab holders on the bezel with the slots on the computer chassis. 2.

  • Page 19: Installing The Fan Duct

    Steps 1. Press the retention tabs on both sides of the fan duct to release it. 2. Pull and remove the fan duct from the computer. Installing the fan duct Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the fan duct and provides a visual representation of the installation procedure.

  • Page 20: Hard-Drive Assembly

    Next steps 1. Install the Side cover. 2. Follow the procedure in After working on your computer. Hard-drive assembly Removing the primary 2.5 in. hard-drive assembly Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover.
  • Page 21 NOTE: Note the orientation of the hard drive so that you can replace it correctly. Installing the primary 2.5 in. hard-drive assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the 2.5 in.
  • Page 22 Steps 1. Insert the hard-drive assembly into the slot on the computer until it clicks into place. 2. For 2.5-in. hard drive set as primary, connect the blue hard drive data cable and power cable to the connectors on the 2.5-in. hard drive.
  • Page 23 About this task The following images indicate the location of the 2.5 inch hard drive bracket and provides a visual representation of the removal procedure. Steps 1. Remove the two (M3x3.5) screws that secure the first hard drive to the hard-drive metal bracket. 2.
  • Page 24 Steps 1. Place the first hard drive into the hard-drive metal bracket and align the slots on the bracket with the slots on the hard drive 2. Replace the two (M3x3.5) screws to secure the first hard drive to the hard-drive metal bracket. 3.
  • Page 25 2. Remove the side cover. About this task The following images indicate the location of the 3.5-in. hard drive assembly and provides a visual representation of the removal procedure. Steps 1. Disconnect the data and power cables from the 3.5 in. hard drive. 2.

  • Page 26: Solid-State Drive

    Steps 1. Slide and insert the 3.5 in. hard-drive assembly into the hard drive cage. 2. Align the hard-drive assembly with the tabs on the chassis. 3. Replace the four 6-32 screws to fix the 3.5 hard drive in place. 4.
  • Page 27 Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2230 PCIe solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.
  • Page 28 Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector. 2. Insert the solid-state drive at a 45-degree angle into the slot on the system board. 3. Replace the screw (M2X3) to secure the M.2 PCIe solid-state drive to the system board. Next steps 1.

  • Page 29: Removing The Memory Modules

    Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2280 PCIe solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.

  • Page 30: Installing The Memory Modules

    2. Remove the side cover. About this task The following images indicate the location of the memory modules and provide a visual representation of the removal procedure. Steps 1. Pull the securing clips from both side of the memory module until the memory module pops up. 2.

  • Page 31: Removing The Processor Fan And Heat-Sink Assembly

    Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it.
  • Page 32 Steps 1. Disconnect the processor fan cable from the connector on the system board. 2. Loosen the four captive screws that secure the processor fan and heat-sink assembly to the system board. 3. Lift the processor fan and heat-sink assembly off the system board. Installing the processor fan and heat-sink assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 33: Removing The Processor

    Steps 1. Align the screw holes on the processor fan and heat-sink assembly with the screw holes on the system board. 2. Tighten the four captive screws that secure the processor fan and heat-sink assembly to the system board. 3. Connect the processor-fan cable to the connector on the system board. Next steps 1.

  • Page 34: Installing The Processor

    Steps 1. Press down and push the release lever away from the processor to release it from the securing tab. 2. Lift the lever upward to lift the processor cover. CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket.
  • Page 35 Steps 1. Ensure that the release lever on the processor socket is fully extended in the open position. 2. Align the pin-1 corner of the processor with the pin 1 corner of the processor socket, and then place the processor in the processor socket.

  • Page 36: Removing The Graphics Card

    Graphics card Removing the graphics card Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. About this task The following images indicate the location of the graphics card and provides a visual representation of the removal procedure. Steps 1.

  • Page 37: Installing The Graphics Card

    Installing the graphics card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the graphics card and provides a visual representation of the installation procedure. Steps 1.
  • Page 38 Graphical processing unit Removing the powered GPU Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. About this task The following images indicate the location of the powered graphical processing unit and provides a visual representation of the removal procedure.

  • Page 39: Installing The Coin-Cell Battery

    Coin-cell battery Installing the coin-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure. Steps 1.

  • Page 40: Removing The Wlan Card

    Steps 1. Using a plastic scribe, gently pry the coin-cell battery out of the slot on the system board. 2. Remove the coin-cell battery away from the computer. WLAN card Removing the WLAN card Prerequisites 1. Follow the procedure in before working inside your computer. 2.

  • Page 41: Installing The Wlan Card

    Steps 1. Remove the (M2x3) screw that secures the WLAN card to the system board. 2. Lift the WLAN card bracket away from the WLAN card. 3. Disconnect the antenna cables from the WLAN card. 4. Slide and remove the WLAN card from the connector on the system board. Installing the WLAN card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 42 Steps 1. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card of your computer. Table 3. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black...

  • Page 43: Slim Optical-Drive

    Slim optical-drive Removing the Optical Disk Drive Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. About this task The following images indicate the location of the ODD and provides a visual representation of the removal procedure. Steps 1.
  • Page 44 Steps 1. Insert the ODD assembly into the ODD slot. 2. Slide the ODD assembly until it snaps into place. 3. Route the power cable and data cable through the routing guides and connect the cables to the ODD. Next steps 1.

  • Page 45: Removing The Speaker

    Installing the slim ODD bracket Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the slim ODD bracket and provides a visual representation of the installation procedure. Steps 1.

  • Page 46: Removing The Power Button

    Power button Removing the power button Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. About this task The following images indicate the location of the power button switch and provides a visual representation of the removal procedure. Steps 1.

  • Page 47: Removing The Power Supply Unit

    Steps 1. Insert the power button switch into the slot from the front-side of the computer, and press until it clicks into the place. 2. Align and connect the power button cable to the connector on the system board. Next steps 1.
  • Page 48 Disassembly and reassembly...

  • Page 49: Installing The Power Supply Unit

    Steps 1. Lay the computer on the right side. 2. Disconnect the power cables from the system board and unroute them from the routing guides on the chassis. 3. Remove the three (#6-32) screws that secure the power-supply unit to the chassis. 4.
  • Page 50 Disassembly and reassembly...

  • Page 51: Removing The Intrusion Switch

    Steps 1. Slide the power-supply unit into the chassis until the securing tab snaps into position. 2. Replace the three (#6-32) screws to secure the power-supply unit to the chassis. 3. Route the power cable through the routing guides on the chassis and connect the power cables to their respective connectors on the system board.

  • Page 52: Installing The Intrusion Switch

    Steps 1. Disconnect the intruder cable from the connector on the system board. 2. Slide and remove the intrusion switch from the chassis. Installing the intrusion switch Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the intrusion switch and provides a visual representation of the installation procedure.

  • Page 53: Removing The System Board

    Steps 1. Insert the intrusion switch into its slot and slide the switch to secure it into the slot. 2. Connect the intruder cable to the connector on the system board. Next steps 1. Install the Side cover. 2. Follow the procedure in After working on your computer. System board Removing the system board Prerequisites...
  • Page 54 8. Remove the Processsor fan and heat-sink. 9. Remove the Processor. About this task The following images indicate the location of the system board and provides a visual representation of the removal procedure. Disassembly and reassembly...
  • Page 55 Disassembly and reassembly...
  • Page 56 Steps 1. Remove the screw (#6-32) that secures the front I/O-bracket to the chassis. 2. Slide and remove the front I/O-bracket from the chassis. 3. Disconnect all the cables that are connected to the system board. 4. Remove the eight (#6-32) and (M2x4) screws that secure the system board to the chassis. Disassembly and reassembly...

  • Page 57: Installing The System Board

    5. Lift the system board at an angle and remove the system board off the chassis. Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the system board and provides a visual representation of the installation procedure. Disassembly and reassembly...
  • Page 58 Disassembly and reassembly...
  • Page 59 Steps 1. Slide the front I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the system board with the screw holes on the chassis. 2. Replace the screw (M2x4) that secures the system board to the chassis. 3.
  • Page 60 4. Route and connect all the cables to the connectors on the system board . 5. Align the front I/O-bracket with the slots on the chassis. 6. Replace the screw (#6-32) to secure the front I/O-bracket to the chassis. Next steps 1.

  • Page 61: Real-Time Clock (Rtc Reset)

    Real-Time Clock (RTC Reset) The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell Inspiron, systems from No POST/No Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.
  • Page 62 Power button light Table 5. Power button LED status Power button LED state System state Description There is in Hibernate or Off state. • • Solid White Working state Solid Amber Various sleep states or No POST Blinking Amber/White Failure to POST This platform relies on the Power button LED light blinking in an amber/white pattern to determine a failure as listed in the following table: NOTE: The blinking patterns consists of two numbers (representing First Group: Amber blinks, Second Group: White blinks).

  • Page 63: Diagnostic Error Messages

    One or more memory modules may be faulty or improperly seated. Reinstall the memory modules or, if necessary, replace them. DISK C: FAILED INITIALIZATION The hard drive failed initialization. Run the hard drive tests in Dell Diagnostics. DRIVE NOT READY The operation requires a hard drive in the bay before it can continue.
  • Page 64 Table 7. Diagnostic error messages(continued) Error messages Description persists, try another drive. Run the Hard Disk Drive tests in Dell Diagnostics. HARD-DISK DRIVE READ FAILURE The hard drive may be defective. Shut down the computer, remove the hard drive, and boot the computer from an optical.

  • Page 65: System Error Messages

    The operating system cannot find a specific track on the hard drive. SHUTDOWN FAILURE A chip on the system board may be malfunctioning. Run the System Set tests in Dell Diagnostics. If the message reappears, Contact Dell. TIME-OF-DAY CLOCK LOST POWER System configuration settings are corrupted. Connect your computer to an electrical outlet to charge the battery.

  • Page 66: Recovering The Operating System

    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 67: Wifi Power Cycle

    Steps 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 68 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 9. Self-help resources Self-help resources Resource location Information about Dell products and services https://www.dell.com/ Dell Support Tips Contact Support In Windows search, type Contact Support, and press Enter.

  • Page 69: Contacting Dell

    Dell product catalog. Availability varies by country/region and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1.

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