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Dell Vostro 20–3055 Owner's Manual
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Dell Vostro 20–3055 Owner's Manual

Dell Vostro 20–3055 Owner's Manual

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Dell Vostro 20–3055
Owner's Manual
Regulatory Model: W15B
Regulatory Type: W15B001

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Summary of Contents for Dell Vostro 20–3055

  • Page 1 Dell Vostro 20–3055 Owner's Manual Regulatory Model: W15B Regulatory Type: W15B001...

  • Page 2: Notes, Cautions, And Warnings

    WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks of Dell Inc.

  • 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: Recommended Tools

    To avoid damaging your computer, perform the following steps before you begin working inside the computer. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched. Turn off your computer (see Turning Off Your Computer). CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.

  • Page 5: After Working Inside Your Computer

    Connect any telephone or network cables to your computer. Connect your computer and all attached devices to their electrical outlets. Turn on your computer. If required, verify that the computer works correctly by running the Dell Diagnostics.

  • Page 6: Removing And Installing Components

    Removing and Installing Components This section provides detailed information on how to remove or install the components from your computer. Removing the Stand Follow the procedures in Before Working Inside Your Computer. Place the computer on a flat surface, display facing downwards. Pry and remove the hinge cover from the computer.

  • Page 7: Installing The Stand

    Remove the stand from the computer. Installing the Stand Align the stand on the computer, and tighten the screws to secure the stand to the computer. Place and press the hinge cover on the computer until it clicks into place. Follow the procedures in After Working Inside Your Computer.

  • Page 8: Removing The Optical-Disk Drive

    Removing the Optical-disk Drive Follow the procedures in Before Working Inside Your Computer. Remove the stand. Perform the following steps as shown in the illustration: a. Press on the tab indicated using a scribe [1]. b. Slide the optical-disk drive (ODD) out of the computer [2]. Remove the screws that secure the optical-disk drive bracket, and remove it from the optical drive [1,2].

  • Page 9: Removing The Back Cover

    Install: stand Follow the procedures in After Working Inside Your Computer. Removing the Back Cover Follow the procedures in Before Working Inside Your Computer. Remove: stand optical-disk drive Perform the following steps as shown in the illustration: a. Pry the edge of the base cover [1]. b.
  • Page 10 back cover Perform the following steps as shown in the illustration: a. Disconnect the hard-drive cable from the computer [1]. b. Remove the screw that secures the hard-drive to the computer [2]. c. Slide the hard-drive [3]. Remove the hard-drive from the computer. Remove the screws that secure the hard-drive to the bracket, lift the hard-drive from bracket [1,2]...

  • Page 11: Installing The Hard Drive

    Installing the Hard Drive Place the hard-drive in the bracket. Tighten the screws that secure the hard-drive to the bracket. Slide the hard-drive into the screw holes of the display bracket. Tighten the screw that secures the hard-drive to the computer. Connect the hard-drive cable.

  • Page 12: Installing The Power-Switch Board

    Installing the Power-Switch Board Connect the power-switch cable to the power-switch board. Insert the power-switch board into its slot on the computer. Install: back cover optical-disk drive stand Follow the procedures in After Working Inside Your Computer. Removing the System-Board Shield Follow the procedures in Before Working Inside Your Computer.

  • Page 13: Installing The System-Board Shield

    Installing the System-Board Shield Align the system-board shield on the system board. Tighten the screws to secure it to the computer. Install: back cover optical-disk drive stand Follow the procedures in After Working Inside Your Computer. Removing the Memory Follow the procedures in Before Working Inside Your Computer.

  • Page 14: Installing The Memory

    Installing the Memory NOTE: Please use DIMM 2 slot if there is only one memory module available. Align the notch on the memory-card with the tab on the system-board connector. Press down on the memory module until the release tabs spring back to secure them in place. Install: system-board shield back cover...

  • Page 15: Installing The System Fan

    Installing the System Fan Align the system fan with the heatsink such that pins of the bracket are in line with the holes of the system fan and tighten the screws to secure it to the computer. Connect the system-fan cable to the system board. Install: system-board shield back cover...

  • Page 16: Installing The Heatsink Assembly

    Remove the heatsink assembly from the system board. Installing the Heatsink Assembly Install the heatsink assembly and tighten the screws to secure it to the system board. Install: system-board shield back cover optical-disk drive stand Follow the procedures in After Working Inside Your Computer.

  • Page 17: Removing The Coin-Cell Battery

    Removing the Coin-Cell Battery Follow the procedures in Before Working Inside Your Computer. Remove: stand optical-disk drive back cover system-board shield Press the release latch away from the battery and remove the coin-cell battery from the computer [1,2]. Installing the Coin-Cell Battery Insert the coin-cell battery and press to lock it.

  • Page 18: Installing The Wlan Card

    back cover system-board shield Perform the following steps as shown in the illustration: a. Remove the screw that secures the WLAN card and slide to remove the WLAN holder from the system board [1,2]. b. Remove the two connectors that secure the WLAN card to the system board [3]. c.

  • Page 19: Installing The Speakers

    Remove the speaker from the computer. Installing the Speakers Align the speakers on the computer. Align the speaker cables through their tabs on the computer and connect the speaker cable to the system board. Install: system-board shield back cover optical-disk drive stand Follow the procedures in After Working Inside Your...

  • Page 20: System Board Layout

    System Board Layout The following image displays the system board layout of the computer. WLAN connector Camera connector SD Card connector USB 3.0 connector Audio connector HDMI connector Speaker connector USB 2.0 connector Coin-cell battery Network connector Power connector Touch connector (Optional) Power switch connector Convertor board connector Audio connector...
  • Page 21 back cover system-board shield heatsink WLAN card memory (optional) Disconnect the following from the system board [1,2,3]: a. display assembly cable b. system-fan cable c. hard-drive cable d. hard-drive/optical-drive power cable e. power-switch cable f. speaker cable g. camera cable h.

  • Page 22: Installing The System Board

    Installing the System Board Align the system board on the computer. Tighten the screws to secure the system board to the computer. Connect the following cables to the system board: a. camera cable b. display assembly cable c. system fan cable d.
  • Page 23 Perform the following steps as shown in the illustration: a. Peel the power cable tape that secures the display assembly cable [1]. b. Unroute the WLAN and camera cables [2]. Remove the screws that secure the display bracket to the computer. Lift the display bracket.
  • Page 24 Pry the edges of the display assembly from the computer. Remove the display assembly from the computer.

  • Page 25: Installing The Display Assembly

    Installing the Display Assembly Align and press the display bracket on the computer. Tighten the screws to secure the display bracket to the computer. Align the display assembly cable through the tabs on the display bracket. Install: system board memory WLAN card system fan heatsink...

  • Page 26: System Setup

    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: •...
  • Page 27 Table 1. Navigation Keys Keys Navigation Up arrow Moves to the previous field. Down arrow Moves to the next field. <Enter> Allows you to select a value in the selected field (if applicable) or follow the link in the field. Spacebar Expands or collapses a drop‐down list, if applicable.
  • Page 28 CPU ID Displays the processor CPU Cache L1 Cache Displays the processor L1 cache size. L2 Cache Displays the processor L2 cache size. Fixed HDD Displays the HDD ID and capacity. SATA ODD Displays the type of ODD. AC Adapter Type Displays the power adapter type.
  • Page 29 Microphone Allows you to Default: Enabled enable or disable the Microphone. Camera Allows you to Default: Enabled enable or disable the Camera mode. Internal Bluetooth Allows you to Default: Enabled enable or disable the Internal Bluetooth. Internal WLAN Allows you to Default: Enabled enable or disable the Internal WLAN...
  • Page 30 Deep Sleep Control Allows you to Default: Enabled in select the Deep S4 and S5 Sleep Control Auto Power On Enable or disable Default: Disabled the Auto Power Auto Power On Mode Allows you to control the power mode Auto Power On Date Allows you to Default: Disabled designate a specific...
  • Page 31 Password Bypass Allows you to enable or disable the permission to bypass the System when they are set Secure Boot Mode This option enables or disables the Secure Boot Feature. Key Management Default Key Provisioning This option enables or disables the Default Key Provisioning (Default: Disabled) Install Default Secure Boot keys Allows you to enables you to Install Factory Secure Variables.
  • Page 32 find an operating system. File Browser Add Boot Option Allows you to Add file browser boot option. File Browser Delete Boot Option Allows you to Delete file browser boot option. Secure Boot Enable or disable the Default: Enabled Secure Boot Control. Load Legacy Option ROM This option control Default: Disabled...

  • Page 33: Updating The Bios

    For laptops, ensure that your computer battery is fully charged and connected to a power outlet Re-start the computer. Go to dell.com/support. Enter the Service Tag or Express Service Code and click Submit. NOTE: To locate the Service Tag, click Where is my Service Tag? NOTE: If you cannot find your Service Tag, click Detect My Product.

  • Page 34: Assigning A System Password And Setup Password

    Assigning a System Password and Setup Password You can assign a new System Password and/or Setup Password or change an existing System Password and/or Setup Password only when Password Status is Unlocked. If the Password Status is Locked, you cannot change the System Password. NOTE: If the password jumper is disabled, the existing System Password and Setup Password are deleted and you need not provide the system password to log on to the computer.
  • Page 35 Press <Y> to save the changes and exit from the System Setup. The computer reboots.

  • Page 36: Technical Specifications

    Technical Specifications NOTE: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For more information about the configuration of your computer, go to Help and Support in your Windows operating system and select the option to view information about your computer.
  • Page 37 Feature Specification Volume controls Volume up/down buttons, program menus, and keyboard media-control keys Table 6. Communications Feature Specification Network adapter Intel 10/100/1000 Mbps Ethernet LAN Table 7. Displays Feature Specification Type 19.5 inch HD+ Maximum resolution 1600 x 900 Refresh rate 60 Hz Brightness 250nits...
  • Page 38 Feature Specification Height 26.00 mm (1.02 inches) 32.00 mm (1.3 inches) Width 40.00 mm (1.57 inches) 52.00 mm (2.0 inches) Depth 94.00 mm (3.70 inches) 128.00 mm (5.0 inches) Coin-cell battery 3 V CR2032 lithium coin cell Table 11. Camera Feature Specification Image resolution...
  • Page 39 Feature Specification Off (no light) — the computer is not detecting a physical connection to the network. Network activity light on integrated Yellow light — A blinking yellow light indicates that network network adapter activity is present. Power supply diagnostic light Green light —...

  • Page 40: Contacting Dell

    Dell product catalog. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: Go to dell.com/support.

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