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OptiPlex 7070 Small Form Factor (SFF) Teardown Removal Guide for Customer Replaceable Units (CRUs)

Summary: This article is a guide to removing the parts of the Dell Small Form Factor OptiPlex 7070 desktop that Dell considers easy for anyone to remove and replace.

This article applies to   This article does not apply to 
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Symptoms

These guides take you step by step through the safe removal of the customer replaceable unit (CRU) parts of a OptiPlex 7070 Small Form Factor (SFF) system. CRUs are the parts of the system that should not need an engineer to remove or replace. The guides also include figures to reference what is involved.

Cause

Not applicable

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, 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 the title of the section that you want to open below in order to see the contents.

 

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Recommended Tools

 

1 Small Phillips head screwdriver 2 Plastic scribe
3 Small flat head screwdriver    
 
Note: 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.

 

  1. Pre-removal instructions before removing the system cover:

    1. During installation or removal of any hardware, always ensure that 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 the blue release catch on the back of the system in towards the center [1] and then push the top cover towards the rear of the chassis and lift it up and off the system [2].

Removing the system cover

 

  1. Pre-removal instructions before removing the front bezel:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover.

  2. Pry up the three (3) retention clips along the top of the bezel [1].

Prying bezel retention clips

  1. Rotate the bezel on the hooks at the bottom of the bezel [2] and pull it off the front of the computer [3].

Rotating the bezel

 

  1. Pre-removal instructions before removing the expansion cards:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover.

  2. Pull the blue metal tab at the rear of the system to unlock the option slots [1].

Removing the expansion card

  1. Check for a release tab [2] press it if there and lift the card up and out of the slot and computer [3].

 

  1. Pre-removal instructions before removing the coin-cell battery:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover.

  2. The coin-cell battery is located between the heat sink and the PSU, using a plastic scribe press the release latch until the battery pops out [1].

Removing the coin-cell battery

  1. Remove the battery from the system [2].

 

  1. Pre-removal instructions before removing the hard disk drive:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover.

  2. The hard drive is located in the front right corner of the system. Both 3.5" and 2.5" hard drives fit in this assembly. Disconnect the cables at the rear of the drive [1,2].

Removing the hard drive

  1. Push the blue release table at the rear of the assembly and lift towards the front of the system and lift the assembly out of the computer [3].

 

  1. Pre-removal instructions before removing the optical disc drive (DVD/CD RW):

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover, Front Bezel, and Hard Drive Assembly.

  2. Unroute the optical disc drive cables [1] and hard drive cables [2] from the retention clip and hard drive-optical disk drive release tab on the right side of the drive cage.

Removing the optical disk drive cables and hard drive cables

  1. Push the blue slide towards the rear of the computer [1] to unlock the drive cage. Rotate the cage up over the right side of the chassis [2].

Unlocking the drive cage

  1. Disconnect the optical disc drive power and data cables [1,2] from the back of the optical disc drive and slide and lift the drive cage out of the system [3].

Sliding the drive cage out

  1. Squeeze the blue release tab at the back of the optical disc drive together [1] and push the latch towards the front of the drive cage [2] and pull the optical disc drive away from the drive cage [3].

Pulling the optical disk drive away from the drive cage

 

  1. Pre-Removal Instructions Before removing the M.2 SSD Card:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover, Front Bezel, and Drive Cage.

  2. The M.2 is located under the drive cage, remove the screw holding the card down [1].

Removing the M.2 SSD card

  1. Lift the card out of the connector and computer [2] and remove the thermal pad from underneath the card [3].

 

  1. Pre-removal instructions before removing the memory:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover, Front Bezel, and Drive Cage.

  2. The memory is located between the heat sink and front of the computer, pull the tabs on either side of the memory DIMM apart [1].

Removing the memory

  1. When the memory pops up, lift it up and out of the computer [2].

Note: Repeat steps 2 and 3 for any additional memory DIMMs in the system.

 

  1. Pre-removal instructions before removing the internal speakers:

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover, Front Bezel, and Drive Cage.

  2. The speaker is located in front of the PSU. Disconnect the speaker cable from the motherboard [1].

Removing the internal speaker

  1. Press the release tab on top of the speaker assembly [2] and lift the assembly up and off of the chassis [3].

 

  1. Pre-removal instructions before removing the power supply unit (PSU):

    1. During installation or removal of any hardware, always ensure that 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. Remove the System Cover, Front Bezel, and Drive Cage.

  2. Disconnect the square power connector from the rear right corner of the system [1] and unroute the cable from around the chassis [2].

Removing the power supply unit cable routing

  1. Remove the three (3) screws securing the PSU from the rear of the computer [1] and disconnect the power connector from the motherboard in front of the memory [2] and lift the power cables away from the system [3].

Removing the power supply

  1. Press the blue release tab in front of the PSU [4] and the PSU towards the front of the computer and lift it out of the system [5].

If you require further assistance, contact Technical Support.
Contact Us OptiPlex 7070 Customer replaceable unit (CRU) teardown index
 

Affected Products

OptiPlex 7070 Small Form Factor