Dell OptiPlex Tower 7020 Owners Manual

Dell OptiPlex Tower 7020 Manual

Get Dell OptiPlex Tower 7020 PDF manuals and user guides View all Dell OptiPlex Tower 7020 manuals
Add to My Manuals
Save this manual to your list of manuals

Dell OptiPlex Tower 7020 manual content summary:

  • Dell OptiPlex Tower 7020 | Owners Manual - Page 1
    OptiPlex Tower 7020 Owner's Manual Regulatory Model: D32M Regulatory Type: D32M004 February 2024 Rev. A00
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 2
    and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2024 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 3
    of OptiPlex Tower 7020 7 Front...7 Back...8 Chapter 2: Set up your OptiPlex Tower 7020 10 Chapter 3: Specifications of OptiPlex Tower 7020 16 RAID)...22 Power ratings...23 Power supply connector...23 GPU-Integrated...23 Video port resolution (GPU-Integrated)...24 External display support (GPU-
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 4
    Major components of OptiPlex Tower 7020...33 Chapter 5: 2230 solid-state drive...45 M.2 2280 solid-state drive...48 Dell Ultra Speed Drive Gen3 card...50 External puck antenna...55 Wireless Units (FRUs 74 Power button...74 Removing the power button...74 Installing the power button...75 Wireless
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 5
    board...110 Chapter 9: Software...116 Operating system...116 Drivers and downloads...116 Chapter 10: BIOS Setup...117 Entering Troubleshooting...137 Dell SupportAssist Pre-boot System Performance Check diagnostics 137 Running the SupportAssist Pre-Boot System Performance Check 137 Power-Supply
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 6
    Recovering the operating system...139 Real Time Clock-RTC reset...139 Backup media and recovery options...140 Wi-Fi power cycle...140 Chapter 12: Getting help and contacting Dell 141 6 Contents
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 7
    to force shut-down the system. NOTE: You can customize the power-button behavior in Windows. Indicates the power-supply state. 3. Hard-drive activity light The activity light turns on when the system reads from or writes to the hard drive. 4. Universal Audio port Views of OptiPlex Tower 7020 7
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 8
    -in enabled device. Provides video and audio output and supports video output of up to 1920x1200 at 60Hz. NOTE: The maximum resolution that is supported is up to 1920 x 1200 @ 60 Hz. 2. DisplayPort 1.4a port (HBR2 support) Connect an external display or a projector. 8 Views of OptiPlex Tower 7020
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 9
    4096 x 2160 @ 60 Hz. ● DisplayPort 1.4a (HBR3 support) Connect an external display or a projector. Maximum resolution supported up to 5120 x 3200 @ 60 Hz. ● VGA port Connect an external display or a projector. Maximum resolution supported up to 1920 x 1200 @ 60 Hz. Views of OptiPlex Tower 7020 9
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 10
    2 Set up your OptiPlex Tower 7020 Steps 1. Connect the keyboard and mouse. Figure 3. Connect the keyboard and the mouse 2. Connect to your network using a cable, or connect to a wireless network. 10 Set up your OptiPlex Tower 7020
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 11
    Figure 4. Connect to your network using a cable, or connect to a wireless network 3. Connect the display. Set up your OptiPlex Tower 7020 11
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 12
    Figure 5. Connect the display 4. Connect the power cable. 12 Set up your OptiPlex Tower 7020
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 13
    Figure 6. Connect the power cable 5. Press the power button. Set up your OptiPlex Tower 7020 13
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 14
    to the Internet, sign-in with or create a Microsoft account. If not connected to the Internet, create an offline account. ● On the Support and Protection screen, enter your contact details. 7. Locate and use Dell apps from the Windows Start menu-Recommended 14 Set up your OptiPlex Tower 7020
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 15
    at www.dell.com/support. Dell Digital Delivery Download software applications, which are purchased but not preinstalled on your computer. For more information about using Dell Digital Delivery, search in the Knowledge Base Resource at www.dell.com/support. Set up your OptiPlex Tower 7020 15
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 16
    kg (11.42 lb) ● Maximum: 6.37 kg (14.04 lb) Processor The following table lists the details of the processors that are supported by your OptiPlex Tower 7020. Table 3. Processor Description Option one Processor type Intel 300 Option two 14th Gen Intel Core i3-14100 Option three 14th Gen Intel
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 17
    Intel Core i3/i5 vPro DRAM bus width 64-bit Flash EPROM 32 MB + 16 MB PCIe bus Up to Gen3 Operating system Your OptiPlex Tower 7020 supports the following operating systems: ● Windows 11 Home ● Windows 11 Pro ● Windows 11 Pro National Education ● Ubuntu Linux 22.04 LTS Memory The following
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 18
    UDIMM, dual- channel ● 64 GB: 2 x 32 GB, DDR5, 5600 MT/s, UDIMM, dual- channel Memory matrix The following table lists the memory configurations supported on your OptiPlex Tower 7020. Table 6. Memory matrix Configuration 8 GB DDR5 16 GB DDR5 16 GB DDR5 32 GB DDR5 32 GB DDR5 Slot UDIMM1 8 GB 16
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 19
    5120 x 3200 @ 60 Hz ○ VGA port: Up to 1920 x 1200 @ 60 Hz I/O port One optional serial port Media-card reader Not supported Power port One power-cable connector Security-cable slot ● One security-cable slot (for Kensington locks) ● One padlock ring Specifications of OptiPlex Tower 7020 19
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 20
    Tower 7020. Table 8. Internal slots Description M.2 Values ● One M.2 2230/2280 slot for solid-state drive ● One M.2 2230 slot for WiFi and Bluetooth combo card NOTE: To learn more about the features of different types of M.2 cards, search in the Knowledge Base Resource at www.dell.com/support
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 21
    Definition Audio (HDA) inteface External audio interface One Universal Audio port Storage This section lists the storage options on your OptiPlex Tower 7020. Table 12. Storage specifications Storage type Interface type 3.5-inch, 7200 RPM, hard-disk drive SATA 3.0 M.2 2230 solid-state drive
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 22
    drives as a RAID volume, Dell Technologies recommends drive models that are identical. NOTE: RAID is not supported on Intel Optane configurations. RAID in the volume are lower performing. OptiPlex Tower 7020 supports RAID with more than one hard drive configuration. 22 Specifications of
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 23
    internal power supply unit (PSU), 92% Efficient, 80 Plus Platinum ● Two 4-pin connectors for processor ● One 8-pin connector for system board GPU-Integrated The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your OptiPlex Tower 7020. Table
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 24
    HDMI 1.4b port: 1920 x 1200 @ 60 Hz DisplayPort 1.4a (HBR3 support)/ ● One optional video port - VGA) ○ HDMI 2.1 port: Up to 4096 x 2160 @ 60 Hz ○ DisplayPort 1.4a (HBR3 support) port: Up to 5120 x 3200 @ 60 Hz ○ VGA port: Up to 1920 x 1200 @ 60 Hz 24 Specifications of OptiPlex Tower 7020
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 25
    more information about using DisplayPort Multi-Stream Transport, see www.dell.com/support. GPU-Discrete The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your OptiPlex Tower 7020. Table 19. GPU-Discrete Controller Memory size Memory type
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 26
    have DisplayPort 1.2 and above ports and MST support. For more information about using DisplayPort Multi-Stream Transport, see www.dell.com/support. Hardware security The following table lists the hardware security of your OptiPlex Tower 7020. Table 22. Hardware security Hardware security Chassis
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 27
    Regulatory compliance The following table lists the regulatory compliance of your OptiPlex Tower 7020. Table 24. Regulatory compliance Regulatory compliance Product Safety, EMC and Environmental Datasheets Dell Regulatory Compliance Home Page Responsible Business Alliance policy Operating and
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 28
    www.dell.com/ regulatory_compliance. WARNING: Disconnect your computer from all power troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 29
    performing any disassembly instructions. Observe the following power button for 15 seconds should discharge residual power in the system board. Standby power Dell products with standby power intermittent problems or a shortened product life span. As the industry pushes for lower power requirements
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 30
    damage to recognize and troubleshoot is the intermittent (also ESD mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never use replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 31
    servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while performing service stable base, and point your toes out. 2. Tighten stomach muscles. Abdominal muscles support your spine when you lift, offsetting the force of the load. 3. Lift with
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 32
    3.5-inch hard drive #6-32 4 I/O bracket #6-32 2 Internal antenna module M3x3 2 Processor fan and heat-sink Captive screw 4 assembly Power-supply unit #6-32 3 Serial/VGA module (optional) M3 2 DisplayPort/HDMI module M3x3 2 (optional) System board #6-32 2 32 Working inside
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 33
    Component Screw type M2 Quantity 1 Screw image #6-32 8 Major components of OptiPlex Tower 7020 The following image shows the major components of OptiPlex Tower 7020. Figure 8. Major Components of OptiPlex Tower 7020 1. Side cover 2. 3.5-inch hard drive 3. Slim optical drive 4. Processor fan
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 34
    10. Front I/O bracket 11. Front bezel 12. Computer chassis 13. Fan shroud 14. Internal speaker 15. Intrusion switch 16. Power-supply unit 17. Graphics card NOTE: Dell Technologies provides a list of components and their part numbers for the original system configuration purchased. These parts are
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 35
    5 Removing and installing side cover Removing the side cover Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that you remove the security cable from the security-cable slot, if applicable. About this task The following images indicate the location of the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 36
    Figure 10. Removing the side cover Steps 1. Loosen the two thumbscrews (#6-32) that secure the side cover to the chassis. 2. Slide the side cover outwards, towards the rear of the computer, and lift the side cover away from the chassis. 3. Place the computer on its side with the side-cover opening
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 37
    Figure 11. Installing the side cover Figure 12. Installing the side cover Removing and installing side cover 37
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 38
    Steps 1. Place the computer in the upright position. NOTE: This step applies only if you have installed any component other than the front bezel. 2. Align the tabs on the side cover with the slots on the chassis. 3. Slide the side cover towards the front of the chassis. 4. Tighten the two
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 39
    6 Removing and installing coin-cell battery Removing the coin-cell battery WARNING: This computer contains a coin-cell battery and requires trained technicians for handling guidance. CAUTION: Removing the coin-cell battery will clear the CMOS and will reset BIOS settings. Prerequisites 1. Follow the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 40
    Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the coin-cell battery and provide a visual representation of the installation procedure. Figure 14. Installing
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 41
    7 Removing and installing Customer Replaceable Units (CRUs) The replaceable components in this chapter are Customer Replaceable Units (CRUs). CAUTION: Customers can replace only the Customer Replaceable Units (CRUs) following the safety precautions and replacement procedures. NOTE: The images in
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 42
    Figure 15. Removing the front bezel Steps 1. Using a plastic scribe, gently pry the tabs sequentially from the top and release the tabs on the front bezel. 2. Rotate the front bezel outward from the chassis and remove the front bezel. Installing the front bezel Prerequisites If you are replacing a
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 43
    Figure 16. Installing the front bezel Steps 1. Align the tabs on the front bezel with the slots on the chassis. 2. Rotate the front bezel towards the chassis and snap it in place. Next steps 1. Install the side cover. 2. Follow the procedure in After working inside your computer. Memory module
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 44
    Figure 17. Removing the memory module Steps 1. Using your fingertips, carefully spread apart the securing-clips on each end of the memory-module slot (DIMM1 or DIMM2, whichever is applicable) . 2. Hold the memory module near the securing clips, and then gently ease the memory module out of the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 45
    Figure 18. Installing the memory module Steps 1. Ensure that the memory-module securing clips are in an open position. 2. Align the notch on the memory module with the tab on the memory-module slot (DIMM1 or DIMM2, whichever is applicable) . 3. Press down on the memory module until the memory module
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 46
    2. Remove the side cover. About this task The following images indicate the location of the M.2 2230 solid-state drive and provide a visual representation of the removal procedure. Figure 19. Removing the M.2 2230 solid-state drive Steps 1. Remove the screw (M2x3.5) that secures the M.2 2230 solid-
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 47
    Figure 20. Installing the M.2 2230 solid-state drive Figure 21. Installing the M.2 2230 solid-state drive Steps 1. Remove the standoff nut (M2) from the M.2 slot (2280) and place it on the M.2 slot (2230), at half length, on the system board. NOTE: This step applies only if you are replacing a M.2
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 48
    4. Replace the screw (M2x3.5) to secure the M.2 2230 solid-state drive to the system board. Next steps 1. Install the side cover. 2. Follow the procedure in After working inside your computer. M.2 2280 solid-state drive Removing the M.2 2280 solid-state drive Prerequisites 1. Follow the procedure in
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 49
    About this task The following images indicate the location of the M.2 2280 solid-state drive and provide a visual representation of the installation procedure. Figure 23. Installing the M.2 2230 solid-state drive Figure 24. Installing the M.2 2280 solid-state drive Steps 1. Remove the standoff nut
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 50
    the system board. Next steps 1. Install the side cover. 2. Follow the procedure in After working inside your computer. Dell Ultra Speed Drive Gen3 card Removing the Dell Ultra Speed Drive Gen3 card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 51
    Figure 26. Removing the Dell Ultra Speed Drive Gen3 card with M.2 2230 solid-state drive Removing and installing Customer Replaceable Units (CRUs) 51
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 52
    chassis. NOTE: Do not perform this step if you are immediately replacing the Dell Ultra Speed Drive Gen3 card with a new PCIe card. 5. Close the PCIe . NOTE: Do not perform this step if you are immediately replacing the Dell Ultra Speed Drive Gen3 card with a new PCIe card. 6. Place theDell Ultra
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 53
    you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the Dell Ultra Speed Drive Gen3 card and provide a visual representation of the installation procedure. Figure 28. Installing the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 54
    Figure 29. Installing the Dell Ultra Speed Drive Gen3 card with M.2 2280 solid-state drive 54 Removing and installing Customer Replaceable Units (CRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 55
    press it gently until it clicks in place on the chassis, to secure the Dell Ultra Speed Drive Gen3 card. Next steps 1. Install the side cover. 2. Follow your computer, see OptiPlex Antenna Installation Guide on the documentation support page of OptiPlex Tower 7020. Removing and installing
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 56
    Wireless card Removing the wireless card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. About this task The following images indicate the location of the wireless card and provide a visual representation of the removal procedure. Figure 31.
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 57
    Installing the wireless card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the wireless card and provide a visual representation of the installation procedure.
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 58
    3. Align the notch on the wireless card with the tab on the wireless-card slot (M.2 WLAN) on the system board. 4. Slide the wireless card at an angle into the wireless-card slot on the system board. 5. Replace the screw (M2x3.5) to secure the wireless-card to the system board. Next steps 1. Install
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 59
    Figure 33. Removing the graphics card Steps 1. Lift the pull tab on the PCIe door outwards to open the PCIe door. 2. Push and hold the tab that secures the graphics card to the PCIe card connector (SLOT3) on the system board. 3. Gently lift the graphics card off the PCIe card connector on the system
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 60
    About this task The following images indicate the location of the graphics card and provide a visual representation of the installation procedure. Figure 34. Installing the graphics card Steps 1. Lift the pull tab on the PCIe door outwards to open the PCIe door. 2. Remove the PCIe blanking plate
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 61
    Hard drive 3.5-inch hard drive Removing the 3.5-inch hard drive Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. About this task The following images indicate the location of the 3.5-inch hard drive and provide a
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 62
    Steps 1. Disconnect the data and power cables from the respective connectors on the hard drive. 2. Remove the four screws (#6-32) that secure the 3.5-inch hard drive to the chassis. 3. Remove 3.5-inch
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 63
    3. Connect the data and power cables to the respective connectors on the 3.5-inch hard drive. Next steps 1. Install the front bezel. 2. Install the side cover. 3. Follow the procedure in After
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 64
    Figure 37. Removing the slim optical drive Figure 38. Removing the slim optical drive 64 Removing and installing Customer Replaceable Units (CRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 65
    Steps 1. Disconnect the data and power cables from the connectors on the slim optical drive. 2. Pull the securing tab to release the slim optical drive from the chassis. 3. Slide and remove
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 66
    the slim optical drive in the slot on the chassis. 4. Slide the slim optical drive until it snaps in place. 5. Connect the data and power cables to the connectors on the slim optical drive. Next steps 1. Install the side cover. 2. Follow the procedure in After working inside your computer. Internal
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 67
    Figure 41. Removing the internal speaker Steps 1. Remove the speaker cable from the retention clip. 2. Disconnect the speaker cable from the connector (INSKR1) on the system board. 3. Press the tab on the internal speaker, slide the internal speaker upwards, and lift the internal speaker along with
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 68
    Figure 42. Installing the internal speaker Steps 1. Press the tab on the internal speaker, align and slide the internal speaker in the slot on the chassis until it snaps in place. NOTE: Ensure that the internal speaker is secured under the tabs on the chassis. 2. Route the internal-speaker cable
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 69
    Figure 43. Removing the serial/parallel port card Figure 44. Removing the serial/parallel port card Steps 1. Lift the pull tab on the PCIe door outwards to open the PCIe door. Removing and installing Customer Replaceable Units (CRUs) 69
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 70
    2. Push and hold the tab that secures the serial/parallel port card to the PCIe card connector (SLOT3) on the system board. 3. Gently lift the serial/parallel port card off the PCIe card connector on the system board. 4. Align and slide the PCIe blanking plate in the slot on the chassis. NOTE: Do
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 71
    Figure 46. Installing the serial/parallel port card Steps 1. Lift the pull tab on the PCIe door outwards to open the PCIe door. 2. Remove the PCIe blanking plate from the slot on the chassis. NOTE: Ensure to keep the PCIe blanking plate safe for future use. 3. Align the notch on the serial/parallel
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 72
    Figure 47. Removing the intrusion switch Steps 1. Disconnect the intrusion-switch cable from the connector (INTRUSION) on the system board. 2. Remove the intrusion-switch cable from the retention clips on the chassis. 3. Slide the intrusion switch to the unlocked position and remove the intrusion
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 73
    Figure 48. Installing the intrusion switch Steps 1. Insert the intrusion switch in the slot on the chassis and slide the intrusion switch to the locked position to secure it to the chassis. 2. Route the intrusion-switch cable through the retention clips on the chassis. 3. Connect the intrusion-
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 74
    not authorized by Dell Technologies. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Power button Removing the power button CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 75
    cable out from the front-side chassis of the computer. 5. Remove the power-button cable from the computer. Installing the power button CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 76
    -button cable in the slot on the chassis from the front-side of the computer, and press the power-button head until it clicks into the place in the chassis. 2. Connect the power-button cable to the connector (PWR SW) on the system board. 76 Removing and installing Field Replaceable Units (FRUs
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 77
    kit Internal antenna module Removing the internal antenna module CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 78
    Figure 52. Removing the internal antenna module 78 Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 79
    the slot on the chassis. 2. Remove the internal-antenna cable from the routing guides on the chassis. 3. Remove the two screws (M3x3) that secure the internal information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 80
    Figure 54. Installing the internal antenna module 80 Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 81
    internal antenna module to the chassis. 4. Route the internal-antenna cable through the routing guide on the chassis. 5. Thread the internal-antenna cable through the slot on the chassis is intended for authorized service technicians only. Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 82
    Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the external puck antenna. 4. Remove the wireless card. About this task NOTE: This step applies only to computers shipped with an optional external SMA antenna installed. The following
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 83
    new PCIe card. Installing the external SMA antenna module CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 84
    Figure 58. Installing the external SMA antenna module Figure 59. Installing the external SMA antenna module Steps 1. Using a screwdriver, remove the fixed PCIe blanking plate from the chassis. NOTE: This step is applicable only when the external SMA antenna module is being installed for the first
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 85
    working inside your computer. Fan duct Removing the fan duct CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. About this task The following
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 86
    duct off the system board. Installing the fan duct CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 87
    -sink assembly Removing the processor fan and heat-sink assembly CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the fan duct. About
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 88
    board. Installing the processor fan and heat-sink assembly CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 89
    the side cover. 3. Follow the procedure in After working inside your computer. Power-supply unit Removing the power-supply unit CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 90
    4. Remove the 3.5-inch hard drive. About this task The following images indicate the location of the power-supply unit and provide a visual representation of the removal procedure. Figure 64. Removing the power-supply unit 90 Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 91
    guides on the chassis. 3. Remove the three screws (#6-32) that secure the power-supply unit to the chassis. 4. Slide and lift the power-supply unit off the chassis. Installing the power-supply unit CAUTION: The information in this installation section is intended for authorized service technicians
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 92
    Figure 66. Installing the power-supply unit Figure 67. Installing the power-supply unit Steps 1. Place the power-supply unit near the slot on the chassis and slide it towards the back of the chassis. 92 Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 93
    secure the power-supply unit to the chassis. 4. Route the power-supply unit cables through the routing guides on the chassis. 5. Connect the power-supply cables to information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 94
    on the pins in the socket. Installing the processor CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 95
    I/O modules Optional serial module Removing the optional serial module CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the fan duct
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 96
    About this task The following images indicate the location of the optional serial module and provide a visual representation of the installation procedure. Figure 71. Installing the optional serial module Steps 1. Using a screwdriver, remove the optional-module cover from the chassis. NOTE: This
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 97
    Optional PS2 and serial module Removing the optional PS2 and serial module Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the fan duct. About this task The following images indicate the location of the PS2 and serial module and
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 98
    PS2 and serial module cable from the connector (KB MS SERIAL) on the system board. 3. Remove the PS2 and serial module cable from the routing guides on the chassis. 4. Remove the PS2 and serial module from the chassis. 5. Align and slide the PCIe blanking plate in the slot on the chassis
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 99
    Figure 74. Installing the optional PS2 and serial module Figure 75. Installing the optional PS2 and serial module Removing and installing Field Replaceable Units (FRUs) 99
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 100
    on the chassis. 4. Route the PS2 and serial module cable through the routing guides on the chassis. 5. Connect the PS2 and serial module cable to the connector information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 101
    off the system board. Installing the optional HDMI module CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 102
    . Optional DisplayPort module Removing the optional DisplayPort module CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the fan
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 103
    the system board. Installing the optional DisplayPort module CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 104
    your computer. Optional VGA module Removing the optional VGA module CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the fan duct
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 105
    Installing the optional VGA module CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 106
    The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before hard drive. 10. Remove the expansion card, if applicable. 11. Remove the power button. 12. Remove the external SMA antenna module, if applicable. 13. Remove
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 107
    CPU) 3. Processor fan and heat-sink assembly cable connector (FAN CPU) 4. Memory module connectors (DIMM1 and DIMM2) 5. Power-button cable connector (PWR SW) 6. Coin-cell battery connector (RTC) 7. Power-supply unit cable connector (ATX SYS) 8. Slim optical-drive data cable connector (SATA3) 9. SATA
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 108
    the following cables from the respective connectors on the system board and remove them from the retention clips on the chassis, if applicable: a. Power-supply unit cables (ATX CPU and ATX SYS) b. Slim optical drive cable (SATA3) c. Hard drive cables (SATA0 and SATA PWR) d. Internal-speaker cable
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 109
    Figure 84. Removing the system board 4. Remove the eight screws (#6-32) that secure the system board to the chassis. 5. Remove the M.2 solid-state drive standoff nut (M2) that secures the system board to the chassis. Figure 85. Removing the system board Removing and installing Field Replaceable
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 110
    86. Removing the system board Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 111
    CPU) 3. Processor fan and heat-sink assembly cable connector (FAN CPU) 4. Memory module connectors (DIMM1 and DIMM2) 5. Power-button cable connector (PWR SW) 6. Coin-cell battery connector (RTC) 7. Power-supply unit cable connector (ATX SYS) 8. Slim optical-drive data cable connector (SATA3) 9. SATA
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 112
    Figure 88. Installing the system board Steps 1. Slide the front I/O-ports on the system board into the front I/O-slots on the chassis and align the screw holes on the system board with the screw holes on the chassis. 2. Replace the M.2 solid-state drive standoff nut (M2) to secure the system board
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 113
    the following cables to the respective connectors on the system board and route them through the retention clips on the chassis, if applicable: a. Power-supply unit cables (ATX CPU and ATX SYS) b. Slim optical drive cable (SATA3) c. Hard drive cables (SATA0 and SATA PWR) d. Internal-speaker cable
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 114
    . 2. Install the processor. 3. Install the processor fan and heat-sink assembly. 4. Install the fan duct. 5. Install the external SMA antenna module, if applicable. 6. Install the power button. 7. Install the expansion card, if applicable. 114 Removing and installing Field Replaceable Units (FRUs)
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 115
    8. Install the 3.5-inch hard drive. 9. Install the graphics card. 10. Install the wireless card. 11. Install the external puck antenna, if applicable. 12. Install the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever is applicable. 13. Install the memory module. 14. Install the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 116
    along with instructions on how to install the drivers. Operating system Your OptiPlex Tower 7020 supports the following operating systems: ● Windows 11 Home ● Windows 11 Pro ● Windows 11 Pro National Education ● Ubuntu Linux 22.04 LTS Drivers and downloads When troubleshooting, downloading, or
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 117
    10 BIOS Setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup. Certain changes can make your computer work incorrectly. NOTE: Depending on the computer and its installed devices, the items that are listed in this section may or may not be displayed.
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 118
    section may or may not be displayed. Table 30. System setup options-Overview menu Overview OptiPlex Tower 7020 BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the computer. Asset Tag Displays the Asset Tag of the computer. Manufacture Date Displays
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 119
    Boot can be enabled in BIOS setup or using management interfaces like Dell Command|Configure, but can only be disabled from BIOS setup. Enables the Enable Secure Boot option is disabled. For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 120
    properly, and the computer could become unrecoverable. By default, the Enable Microsoft UEFI CA option is enabled. For additional security, Dell Technologies recommends keeping the Microsoft UEFI CA option enabled to ensure the broadest compatibility with devices and operating systems. Secure Boot
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 121
    mode of the integrated storage device controller. By default, the RAID On option is selected. The storage device is configured to support RAID functions with VMD controller. Storage Interface Port Enablement Displays the information of various onboard drives. Enables or disables the individual
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 122
    setting for balanced performance, noise, and temperature. USB Wake Support Enable USB Wake Support When enabled, connecting a USB device wakes the computer from Standby, Hibernate, and Power Off. By default, the Enable USB Wake Support option is enabled. AC Bahavior AC Recovery Determines the
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 123
    the operating system power option is blank if it was set to Intel Speed Shift Technology support. When enabled, the TPM) provides various cryptographic services which serve as the cornerstone enabled. For additional security, Dell Technologies recommends keeping TPM 2.0 Security
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 124
    default, the SHA-256 option is enabled. For additional security, Dell Technologies recommends keeping the SHA-256 option enabled. Clear When enabled, attached to the memory controller. Up to 16 different encryption keys are supported for use by the operating system/VMM. By default, the Multi-Key
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 125
    the Esc key is pressed at the System Password prompt. ● The computer password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the computer password in situations where it is likely that a computer may be lost or stolen. Internal HDD-0 Password The
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 126
    If the computer and hard drive passwords are set to the same value, the hard drive unlocks after the correct computer password is entered. Dell Technologies recommends using a hard drive password to protect unauthorized data access. M.2 PCIe SSD-0 The M.2 PCIe SSD-0 Password can be set to prevent
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 127
    and maximum length of the passwords and require passwords to contain certain character classes (upper case, lower case, digit, special character). Dell Technologies recommends setting the minimum password length to at least eight characters. Upper Case Letter The Upper Case Letter field enforces
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 128
    Password Changes option is enabled. For additional security, Dell Technologies recommends keeping the Allow NonAdmin Password Changes option disabled the Physical Security ID (PSID) revert of NVMe hard-drives from the Dell Security Manager prompt. When enabled, PSID revert is allowed to proceed
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 129
    than the value specified by the Auto operating system Recovery Threshold setup option and local Service operating system does not boot or is not installed. By default, the BIOSConnect option is enabled. Dell Auto OS Recovery Threshold Allows you to control the automatic boot flow for SupportAssist
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 130
    mechanism. By default, the Enable SERR Messages option is enabled. First Power On Date Set Ownership Date Allows you to set the Ownership date of P), and LSI RAID (CTRL+ C) Option ROMs. Other preboot Option ROMs, which support entry using a key sequence, are not affected by this setting. Table 42.
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 131
    setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Enable Pre-Boot DMA Support option is enabled. For additional security, Dell Technologies recommends keeping the Enable PreBoot DMA Support option enabled. NOTE: This option is provided only for compatibility purposes, since some older
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 132
    Enables or disables the ability of the CPU to enter and exit low-power state. When disabled, it disables all C-states. When enabled, it mode of the processor. When enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor. By www.dell.com/support. 132 BIOS Setup
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 133
    Search support box, enter the Service Tag of your computer, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You can also use the product ID or manually browse for your computer model. 3. Click Drivers & Downloads
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 134
    FAT32 file system (key does not have to be bootable) ● BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive ● AC power adapter that is connected to the computer ● Functional computer battery to flash the BIOS Perform the following steps to
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 135
    an existing System or Setup password, if the Password Status is Locked. About this task To enter the System Setup, press F2 immediately after a power-on or reboot. Steps 1. In the System BIOS or System Setup screen, select System Security and press Enter. The System Security screen is displayed
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 136
    . Clearing BIOS (System Setup) and System passwords About this task To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information about how to reset Windows or application passwords, see the documentation accompanying Windows or
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 137
    inform you of problems encountered during testing. power-supply unit of a desktop or all-in-one computer, search in the Knowledge Base Resource at www.dell.com/support. System-diagnostic lights This section lists the system-diagnostic lights of your OptiPlex Tower 7020. Diagnostic light The power
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 138
    following table shows different power and battery-status light patterns and associated problems. NOTE: The following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems. You should only perform troubleshooting and repairs as authorized
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 139
    Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures. For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/serviceabilitytools
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 140
    to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes multiple options for recovering the Windows operating system on your Dell computer. For more information, see Dell Windows Backup Media and Recovery Options. Wi-Fi power cycle About this task If
  • Dell OptiPlex Tower 7020 | Owners Manual - Page 141
    and press Enter. www.dell.com/support/windows www.dell.com/support/linux Access top solutions, diagnostics, drivers and downloads, and learn more about your computer through videos, manuals, and documents. Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
OptiPlex Tower 7020
Owner's Manual
Regulatory Model: D32M
Regulatory Type: D32M004
February 2024
Rev. A00