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Article Number: 000130529

Dell Precision 3551 Teardown Removal Guide for Customer Replaceable Units (CRUs)

Summary: These guides takes you step by step through the safe removal of what are considered to be the Customer Replaceable Unit (CRU) parts of a Dell Precision 3551 system. (CRUs are the parts of the system that should not need an engineer to remove or replace.) The guides will also include figures to reference what is involved. ...

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Article Content

Symptoms

No symptom information is available.

Cause

No cause information is available.

Resolution

Table of Contents:

  1. CRU Removal Guide
  2. Removal Instructions

Removal Guide

If these guides do not cover what you are looking to do, then you want to reference your System Manual.

The article below provides information about safe practices to consider before working with electrical equipment.

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Removal Instructions

Note: Click on the title of the section that you want to open below, in order to see the contents.
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Recommended Tools For Working on a Dell Laptop

1 Small Phillip's head screwdriver 2 Plastic Scribe
3 Small Flat head screwdriver    
 
Note: Be aware that using a large Phillips or Flat Head screwdriver may result in damage to the head of the screws. This would make their removal impossible without specialty tools, that are not available to our onsite engineers.

 

Note: The images in this document may differ from your computer depending on the configuration you ordered.

Steps:

  1. Save and close all open files and exit all open applications

  2. Shut down your computer. Click Start > Power button > Shut down

  3. Disconnect your computer and all attached devices from their electrical outlets

  4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer

  5. Remove any media card and optical disc from your computer, if applicable

 

  1. Pre-Removal Instructions Before removing the Bottom Door Panel:

    1. Follow the procedure in, Before Working Inside Your Computer.

  2. Remove the five (M2.5x6.3) and three (M2.5x8) captive screws that secure the base cover to the computer.

Dell Precision 3551 Bottom View

  1. Pry the base cover starting from the right hinge and work your way around.

Dell Precision 3551 Bottom Pry Points

  1. Lift the base cover away from the computer.

  1. Complete.

 

  1. Pre-Removal Instructions Before removing the Battery:

    1. Follow the procedure in, Before Working Inside Your Computer.

    2. Remove the Bottom Door Panel.

  2. Disconnect the battery cable from the system board.

Dell Precision 3551 Battery Removal

  1. Remove the single (M2x6) captive screw that secures the computer battery.

  1. Lift the battery off the computer.

  1. Complete.

 

  1. Pre-Removal Instructions Before removing the Memory:

    1. Follow the procedure in, Before Working Inside Your Computer.

    2. Remove the Bottom Door Panel.

    3. Remove the Battery.

  2. Using your finger tips gently spread apart the securing-clips on each end of the memory-module slot until the memory module pops up.

Dell Precision 3551 Memory Removal

  1. Slide and remove the memory module off the memory module slot on the system board.

  1. Complete.

 

  1. Pre-Removal Instructions Before removing the Hard Drive (HDD):

    1. Follow the procedure in, Before Working Inside Your Computer.

    2. Remove the Bottom Door Panel.

    3. Remove the Battery.

  2. Locate the HDD on your computer.

Dell Precision 3551 Hard Drive Removal

  1. Disconnect the HDD cable from the system board.

  1. Remove the four (M2x2.7) screws that secure the HDD to the system board.

  1. Remove the HDD from the computer.

  1. Complete.

 

  1. Pre-Removal Instructions Before removing the WWAN CARD (3G, Cellular):

    1. Follow the procedure in, Before Working Inside Your Computer.

    2. Remove the Bottom Door Panel.

    3. Remove the Battery.

  2. Locate the WWAN on your computer.

Dell Precision 3551 WWAN Card

  1. Remove the single (M2x3) screw that secures the WWAN metal bracket to the computer.

  1. Lift the WWAN metal bracket away from the computer.

  1. Disconnect the WWAN cables from the WWAN card module.

  1. Slide the WWAN card out of the system.

  1. Complete.

 

  1. Pre-Removal Instructions Before removing the WLAN Card (WiFi, Wireless) :

    1. Follow the procedure in, Before Working Inside Your Computer.

    2. Remove the Bottom Door Panel.

    3. Remove the Battery.

  2. Locate the WLAN card on your computer.

Dell Precision 3551 WLAN

  1. Remove the single (M2x3) screw that secures the WLAN bracket.

  1. Remove the WLAN bracket from the computer.

  1. Disconnect the WLAN cables from the WLAN module.

  1. Remove the WLAN card out of the computer.

  1. Complete.

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Article Properties

Affected Product

Precision 3551

Last Published Date

19 Oct 2023

Version

5

Article Type

Solution

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