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Precision 3541 Teardown removal guide for customer replaceable units (CRUs)

Summary: This article is a guide to those parts of the Dell Precision 3541 Mobile Workstation that it considers OK for anyone to remove and replace.

This article applies to   This article does not apply to 
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Symptoms

These guides will take you step by step through the safe removal of what are considered to be the Customer Replaceable Unit (CRU) parts of a Precision 3541 system. (CRUs are the parts of the system that shouldn't need an engineer to remove or replace.) The guides will also include pictures to reference what's involved.

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 will want to reference your System Manual.

The article below provides information on safe practises to take into consideration before working with electrical equipment.

Cause

 

Removal Instructions

 

SLN317344_en_US__1icon Note: Please click on the title of the section you want to open below, in order to see the contents.
 
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SLN317344_en_US__2ReqTools_E7450_BKeith_01

1 Small Phillip's head screwdriver 2 Plastic Scribe
3 Small Flat head screwdriver    
 
SLN317344_en_US__1icon 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 speciality tools, that aren't available to our onsite engineers.

 

  1. Pre-Removal Instructions Before removing the Main Access Panel:

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

  2. Remove the three (3) screws from the top of the base and the two (2) screws from the bottom of the base and keep them seperate from the three (3) screws you remove from across the middle of the base (The first 5 red ringed screws are longer than the 3 orange ringed screws across the middle.).

SLN317344_en_US__4CRU_3541_Door_01_BK

  1. Using a plastic scribe or similar tool, pry up the base starting from the right hand side hinge and work your way clockwise around the base.

SLN317344_en_US__5CRU_3541_Door_02_BK

  1. Lift the base cover away from the computer.

 

  1. Pre-Removal Instructions Before removing the Battery:

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the Access Panel

  2. disconnect the battery cable from the motherboard and remove the securing screw from the right hand side of the battery.

SLN317344_en_US__6CRU_3541_Battery_01_BK

  1. Lift the battery up and out of the PC.

 

  1. Pre-Removal Instructions Before removing the System fan:

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the System Cover and Battery

 

  1. Remove the six (6) screws from the heatsink along the top edge of the system and keep them seperate from the two (2) screws you need to remove from the fan in the top right hand side corner. (The 6 orange ringed screws are smaller than the 2 red ringed screws securing the fan.).

SLN317344_en_US__7CRU_3541_Fan_Discrete_01_BK

  1. Disconnect the fan cable from the motherboard and lift the Fan/Heatsink unit out of the PC.

  1. Remove the four (4) screws from the heatsink along the top edge of the system and keep them seperate from the two (2) screws you need to remove from the fan in the top right hand side corner. (The 4 orange ringed screws are smaller than the 2 red ringed screws securing the fan.).

SLN317344_en_US__8CRU_3541_Fan_UMA_01_BK

  1. Disconnect the fan cable from the motherboard and lift the Fan/Heatsink unit out of the PC.

 

  1. Pre-Removal Instructions Before removing the (Optional) microSIM Card Tray:

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

  2. Straighten out a paperclip or use the SIM card removal tool to insert into the pinhole on the left hand side of the microSIM card tray [1 & 2]

  3. The card tray should partially eject from the right hand side of the system [3]

SLN317344_en_US__9CRU_3541_SIM_01_BK

  1. Grip the tray and pull it the rest of the way out of the system

 

  1. Pre-Removal Instructions Before removing the microSD Memory Card :

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

  2. Press and release the microSD card in the slot for it to partially pop out of the right hand side on your system [1]

SLN317344_en_US__10CRU_3541_SD_01_BK

  1. Grip the card and pull it the rest of the way out of the slot [2]

 

  1. Pre-Removal Instructions Before removing the Memory :

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the System Cover and Battery

  2. The memory is located in the middle of the system, pull the metal securing clips on either side of the memory dimm apart to have the memory pop up at an angle from the motherboard.

SLN317344_en_US__11CRU_3541_Memory_01_BK

  1. Pull the memory dimm out of the connector and out of the PC.

SLN317344_en_US__1icon Note : Please repeat Steps 2 and 3 for any additional Memory DIMMs located in the system.

 

  1. Pre-Removal Instructions Before removing the Solid State Drive (SSD) :

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the System Cover and Battery

  2. The SSD is located between the battery bay and the memory. Remove the two (2) screws holding the card to the motherboard.

SLN317344_en_US__13CRU_3541_SSD_01_BK

  1. Remove the thermal plate and pull the SSD out of it's connector and the PC.

 

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

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the System Cover and Battery

  2. The WWAN card sits in the top left hand side corner of the system, remove the screw that holds down the securing bracket to the motherboard and take the bracket off.

SLN317344_en_US__14CRU_3541_WWAN_01_BK

  1. Disconnect the antenna cables from the end of the WWAN card, these are press stud connectors and pop off with some pressure from a fingernail or plastic scribe.

SLN317344_en_US__15CRU_3541_WWAN_02_BK

  1. Lift the card out of the connector and the PC.

 

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

    1. During installation or removal of any hardware always ensure all data is backed up properly

    2. Disconnect any telephone, network, or USB cables from the computer

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

    4. Please remove the System Cover and Battery

  2. The WLAN card sits between the coin cell battery and memory in the system, remove the screw that holds down the securing bracket to the motherboard and take the bracket off.

SLN317344_en_US__16CRU_3541_WLAN_01_BK

  1. Disconnect the antenna cables from the end of the WLAN card, these are press stud connectors and pop off with some pressure from a fingernail or plastic scribe.

SLN317344_en_US__17CRU_3541_WLAN_02_BK

  1. Lift the card out of the connector and the PC.

Resolution

 

If you require further assistance, contact Technical Support

 

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Affected Products

Precision 3541
Article Properties
Article Number: 000142499
Article Type: Solution
Last Modified: 02 Oct 2023
Version:  5
Find answers to your questions from other Dell users
Support Services
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Article Properties
Article Number: 000142499
Article Type: Solution
Last Modified: 02 Oct 2023
Version:  5
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.