Skip to main content
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Enjoy members-only rewards and discounts
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.

Precision Tower 5820 Teardown removal guide for customer replaceable units (CRUs)

Summary: This article is a removal guide to those parts of the Dell Precision 5820 Tower Workstation that Dell thinks anyone can remove and replace.

This article may have been automatically translated. If you have any feedback regarding its quality, please let us know using the form at the bottom of this page.

Article Content


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 Tower 5820 Workstation. (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.


Back to Top


 

Removal Instructions

 

SLN308058_en_US__1icon Note: Please click on the title of the section you want to open below, in order to see the contents.
 

 

SLN308058_en_US__2ReqTools_E7450_BKeith_01

1 Small Phillip's head screwdriver 2 Plastic Scribe
3 Small Flat head screwdriver    
 
SLN308058_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 Power Supply Unit:

    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 (i.e. The external mains power cable)

  2. With the system on it's side, press down on the PSU release latch [1] and using the handle, pull the PSU out of the system [2].

SLN308058_en_US__45820_PSU_BK

 

  1. Pre-Removal Instructions Before removing the Left Side Cover:

    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

SLN308058_en_US__5icon Caution: The system will not power on while the side cover is off. If you remove the cover while the system is powered on, it will shut off.
 
  1. Press the Latch in the middle of the cover.

SLN308058_en_US__65820_Cover_BK_01

  1. Pull the Latch up [1] and rotate it to release the side cover [2]. Lift the cover away from the system.

SLN308058_en_US__75820_Cover_BK_02

 
 
  1. Pre-Removal Instructions Before removing the Front Bezel:

    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 Side Cover

  2. With the system on it's side, pry up the four (4) retention tabs on the top of the bezel and rotate up from the bottom of the bezel to remove it from the chassis.

SLN308058_en_US__85820_Bezel_BK

  1. Pre-Removal Instructions Before removing the HDD Bezel:

    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 Side Cover and the Front Bezel

  2. With the system on it's side, press the blue unlock button at the top of the chassis above the ODD bay [1] and slide the latch directly on the chassis that is directly above the bezel [2].

SLN308058_en_US__95820_HDDBezel_BK

  1. rotate the bezel up and out of it's bay in the chassis [3].

 

  1. Pre-Removal Instructions Before removing the Expansion Cards:

    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 Side Cover

  2. Check for any additional cables from from the card and disconnect them from the system. Press [1] and rotate the blue latches [2] to unlock the cards from the chassis expansion slots.

SLN308058_en_US__105820_Expansion_BK

  1. Check for a locking lever at the back of the card, if there is one - unlock it before pulling the card up and out of the chassis [3].

SLN308058_en_US__1icon Note: Some Expansion cards require extra power to run correctly, this is usually by means of an extra power or fan cable. Some types of graphics cards include a locking latch at the back of the card where is secures to the slot in the motherboard.

 

  1. Pre-Removal Instructions Before removing the PCIe Holder:

    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 Side Cover and any Expansion Cards

SLN308058_en_US__1icon Note: Before you start you will need to check if any full length expansion cards are installed, if so you will need to remove these cards before you begin.
 
  1. Press the PCIe Holder release tab [1] and slide the holder up and out of the system [2].

SLN308058_en_US__135820_PCIeHolder_BK

 
 
  1. Pre-Removal Instructions Before removing the Motherboard Air Shroud:

    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 Side Cover

  2. Press both securing tabs on the shroud in towards the middle of the shroud from front and back of the shroud.

SLN308058_en_US__145820_Shroud_BK_01

  1. Lift the Air Shroud out of the system.

SLN308058_en_US__155820_Shroud_BK_02

  1. Pre-Removal Instructions Before removing the Front 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 Side Cover, PCIe Holder and Air Duct Shroud

  2. Unroute the SATA, ODD [1] and USB 3.1 [2] cables from the Card Holder [3].

SLN308058_en_US__165820_FrontFan_BK_01

  1. Disconnect the fan cable from the motherboard [1], remove the screw that secures the fan to the chassis [2] and lift the release tab to pull it up and out of its slot in the chassis [3].

SLN308058_en_US__175820_FrontFan_BK_02

  1. Pre-Removal Instructions Before removing the Fan Bracket:

    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 Side Cover, Front Bezel, ODD, ODD 5.25" Bracket and Air Duct Shroud

  2. Press in the release tabs and disconnect the two (2) fan cables from the motherboard.

SLN308058_en_US__185820_FanBracket_BK_01

  1. Remove the three (3) screws that secure the bracket to the chassis [1] and lift the bracket up and out of the system [2].

SLN308058_en_US__195820_FanBracket_BK_02

 

  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 Side Cover and Air Shroud

  2. Pull the securing clips away from the memory.

SLN308058_en_US__205055_MT_Memory_BK_01

  1. Lift the memory up and out of the slot.

SLN308058_en_US__215055_MT_Memory_BK_02

SLN308058_en_US__1icon Note: Repeat steps 2 & 3 for any additional memory in the system.
 
  1. Pre-Removal Instructions Before removing the Hard Disk Drive (HDD) Bracket:

    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 Side Cover, HDD Bezel

  2. Press the release button [1] on the right hand side of the bracket to relase the latch [2].

SLN308058_en_US__235820_HDDBracket_BK_01

  1. Pull on the latch lever and slide the bracket out of the chassis.

SLN308058_en_US__245820_HDDBracket_BK_02

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

    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 Side Cover, HDD Bezel and HDD Bracket

  2. Pull one side of the bracket away from the drive to release the securing tabs on the drive.

SLN308058_en_US__255820_HDD_BK_01

  1. Lift the drive up and out of the bracket

SLN308058_en_US__265820_HDD_BK_02

 
  1. Pre-Removal Instructions Before removing the Slim line Optical Disc Drive (ODD):

    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 Side Cover

  2. Remove the screw [1] from the securing bracket at the rear of the slim ODD and push the drive towards the front of the PC [2].

SLN308058_en_US__275820_SlimODD_BK_01

  1. Pull the drive the remaining way out of the front of the chassis.

SLN308058_en_US__285820_SlimODD_BK_02

  1. Pre-Removal Instructions Before removing the 5.25" Optical Disc Drive (ODD):

    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 Side Cover and Front Bezel

  2. Remove the data and power cables from the back of the 5.24" ODD.

SLN308058_en_US__295820_ODD_BK_01

  1. Push the ODD blue release latch down [1] and push the drive out the front of the system [2].

SLN308058_en_US__305820_ODD_BK_02

  1. Pre-Removal Instructions Before removing the 5.25" Optical Disc Drive (ODD) Bracket:

    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 Side Cover, Front Bezel and 5.25" ODD

  2. Rewmove the five (5) screws that secure the bracket to the chassis [1&2].

SLN308058_en_US__315820_ODDBracket_BK_01

  1. Slide the ODD bracket towards the back of the system until it's possible to tilt it up and out of the PC.

SLN308058_en_US__325820_ODDBracket_BK_02

 

  1. Pre-Removal Instructions Before removing the Internal Speaker:

    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 Side Cover, Front Bezel and 5.25" ODD Bracket

  2. Disconnect one end of the speaker cable from the front I/O module [1].

SLN308058_en_US__335820_Speaker_BK

  1. Press in and hold the tabs on the speaker [2] and then slide it out the front of the system [3].

 

  1. Pre-Removal Instructions Before removing the Coin Cell 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 Side Cover, Air Duct Shroud and any Expansion Slot Cards

  2. Press the release latch [1] away from the battery until the battery pops up from the socket [2]. Lift the battery out of the system.

SLN308058_en_US__345820_Coin_BK



Video Resources 

We also have YouTube video content for the following part replacement processes to assist you:
 
ReadyDell Precision 5820 and 7820: Flex Bay Upgrade - Convert PCIE to LSI https://www.youtube.com/watch?v=BUEdpEhR4Us
Dell Precision 5820: VROC How to Upgrade https://youtu.be/s_Pn6zuYZZI
Dell Precision 5820 and 7820: Add 3.5"  Hard Drives to 5.25"  Bay https://www.youtube.com/watch?v=hq6pinQGDs0
Dell Precision 5820 and 7820: Add 2.5"  Hard Drives to 5.25"  Bay https://www.youtube.com/watch?v=WR7Ns3433KA
Dell Precision 5820 and 7820: Convert to Rack Mount https://youtu.be/uZPKAArt8N8
Dell Precision 5820 and 7820: Replace Motherboard https://youtu.be/Muhc16loZyo

Article Properties


Affected Product

Precision 5820 Tower

Last Published Date

21 Feb 2021

Version

4

Article Type

Solution