Page 1 OptiPlex Small Form Factor Plus 7020 Owner's Manual Regulatory Model: D17S Regulatory Type: D17S005 February 2024 Rev. A00...
Page 2 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 may be trademarks of their respective owners.
Page 3: Table Of Contents
Contents Chapter 1: Views of OptiPlex Small Form Factor Plus 7020............7 Front....................................... 7 Back......................................9 Chapter 2: Set up your computer....................11 Chapter 3: Specifications of OptiPlex Small Form Factor Plus 7020..........18 Dimensions and weight..............................18 Processor..................................... 18 Chipset....................................19 Operating system................................
Page 4 Recommended tools................................. 33 Screw list.....................................34 Major components of OptiPlex Small Form Factor Plus 7020................35 Chapter 5: Removing and installing side cover................38 Removing the side cover..............................38 Installing the side cover..............................38 Chapter 6: Removing and installing coin-cell battery..............40 Removing the coin-cell battery............................40 Installing the coin-cell battery............................40...
Page 5 Intrusion switch..................................74 Removing the intrusion switch..........................74 Installing the Intrusion switch...........................75 Chapter 8: Removing and installing Field Replaceable Units (FRUs)..........77 Power button..................................77 Removing the power button............................. 77 Installing the power button............................78 System fan..................................79 Removing the system fan............................79 Installing the system fan............................80 Wireless antenna module..............................82 Internal antenna module............................
Page 6 Deleting or changing an existing system setup password................135 Clearing CMOS settings..............................136 Clearing BIOS (System Setup) and System passwords..................136 Chapter 11: Troubleshooting.......................137 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 137 Running the SupportAssist Pre-Boot System Performance Check.............. 137 Power-Supply Unit Built-in Self-Test ........................137 System-diagnostic lights..............................138 Recovering the operating system..........................138...
Page 7: Chapter 1: Views Of Optiplex Small Form Factor Plus 7020
When the computer is turned on, press the power button to put the computer into Sleep state; press and hold the power button for four seconds to force shut-down the computer. NOTE: You can customize the power-button behavior in Windows. Views of OptiPlex Small Form Factor Plus 7020...
Page 8 8. USB 3.2 Gen 2 (10 Gbps) port Connect devices such as external storage devices and printers. Provides data transfer speeds of up to 10 Gbps. 9. Slim optical drive (optional) Reads from and writes to CDs and DVDs. Views of OptiPlex Small Form Factor Plus 7020...
Page 9: Back
● DisplayPort 1.4a (HBR3 support) Connect an external display or a projector. Maximum resolution supported up to 5120x3200 @60Hz. ● VGA port Connect an external display or a projector. Maximum resolution supported up to 1920x1200 @60Hz. Views of OptiPlex Small Form Factor Plus 7020...
Page 10 Connect an external display or a projector. NOTE: The maximum resolution that is supported is up to 4096x2304 @60Hz. 13. Retaskable line-out/line-in audio port Connect recording or playback devices such as microphone or CD player. Connect speakers. Views of OptiPlex Small Form Factor Plus 7020...
Page 11: Chapter 2: Set Up Your Computer
Set up your computer Steps 1. Connect the keyboard and mouse. Set up your computer...
Page 12 2. Connect to your network using a cable, or connect to a wireless network. Set up your computer...
Page 13 3. Connect the display. Set up your computer...
Page 14 4. Connect the power cable. Set up your computer...
Page 15 5. Press the power button. Set up your computer...
Page 16 6. Finish operating system setup. For Ubuntu: Set up your computer...
Page 17 Follow the on-screen instructions to complete the setup. For more information about installing and configuring Ubuntu, search in the Knowledge Base Resource at www.dell.com/support. For Windows: Follow the on-screen instructions to complete the setup. When setting up, Dell Technologies recommends that you: ● Connect to a network for Windows updates. NOTE: If connecting to a secured wireless network, enter the password for the wireless network access when prompted.
Page 18: Chapter 3: Specifications Of Optiplex Small Form Factor Plus 7020
● Maximum: 5.62 kg (12.38 lb) configuration ordered and manufacturing variability. Processor The following table lists the details of the processors that are supported by your OptiPlex Small Form Factor Plus 7020. Specifications of OptiPlex Small Form Factor Plus 7020...
Page 19: Chipset
Intel UHD Graphics Intel UHD Graphics Intel UHD graphics Graphics 770 Chipset The following table lists the details of the chipset that is supported for your OptiPlex Small Form Factor Plus 7020. Table 4. Chipset Description Values Chipset Intel Q670...
Page 20: Operating System
● 64 GB, 4 x 16 GB, DDR5, 4000 MT/s, UDIMM, dual- channel ● 128 GB, 4 x 32 GB, DDR5, 3600 MT/s, UDIMM, dual- channel Memory matrix The following table lists the memory configurations supported on your OptiPlex Small Form Factor Plus 7020. Table 6. Memory matrix Configurati Slot UDIMM1...
Page 21: External Ports
32 GB 32 GB 32 GB 32 GB DDR5 External ports The following table lists the external ports of your OptiPlex Small Form Factor Plus 7020. Table 7. External ports Description Values Network port One RJ-45 port 10/100/100 Mbps USB ports ●...
Page 22: Internal Slots
Table 7. External ports (continued) Description Values ● One Padlock ring Internal slots The following table lists the internal slots of your OptiPlex Small Form Factor Plus 7020. Table 8. Internal slots Description Values Expansion ● One Half-height Gen4 PCIe x16 slot ●...
Page 23: Audio
The version of the Bluetooth wireless card may vary depending on the operating system that is installed on your computer. Audio The following table lists the audio specifications of your OptiPlex Small Form Factor Plus 7020. Table 11. Audio specifications Description...
Page 24: Storage Matrix
Storage matrix The following table lists the storage configurations supported on your OptiPlex Small Form Factor Plus 7020. Table 13. Storage matrix Storage Slot SSD-0 SSD-1 SSD-2 SATA-0 (Primary M.2 PCIe for boot function) One M.2 2230 solid-state drive Two M.2 2230 solid-state drives One M.2 2280 solid-state drive...
Page 25: Media-Card Reader
OptiPlex Small Form Factor Plus 7020 supports RAID with more than one hard drive configuration. Media-card reader The following table lists the media cards that are supported on your OptiPlex Small Form Factor Plus 7020. Table 14. Media-card reader specifications ...
Page 26: Power Supply Connector
-40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F) Power supply connector The following table lists the Power supply connector specifications of your OptiPlex Small Form Factor Plus 7020. Table 16. Power supply connector Power supply unit...
Page 27: Video Port Resolution (Gpu-Integrated)
5120 x 3200 @ 60 Hz is the maximum resolution for one port configuration AMD Radeon RX 6500 Two DisplayPort 1.4a ( DP1.4a*2) ports 5120 x 3200 @ 60 Hz is the maximum resolution for one port configuration Specifications of OptiPlex Small Form Factor Plus 7020...
Page 28: External Display Support (Gpu-Discrete)
DisplayPort Multi-Stream Transport (MST) allows you to daisy chain monitors that 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 Small Form Factor Plus 7020. Table 23. Hardware security Hardware security...
Page 29: Regulatory Compliance
Dell Regulatory Compliance Home Page Responsible Business Alliance Policy Operating and storage environment This table lists the operating and storage specifications of your OptiPlex Small Form Factor Plus 7020. Airborne contaminant level: G1 as defined by ISA-S71.04-1985 Table 26. Computer environment ...
Page 30: Chapter 4: Working Inside Your Computer
You should only perform 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 that is shipped with the product or at www.dell.com/regulatory_compliance.
Page 31: Safety Precautions
ESD protection is an increasing concern. Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
Page 32: Esd Field Service Kit
Always place parts in your hand, on the ESD mat, in the computer, or inside an anti-static bag. ● Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Working inside your computer...
Page 33: Transporting Sensitive Components
It is recommended to always use the traditional wired ESD grounding wrist strap and protective anti-static mat when servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while performing service and use anti-static bags for transporting sensitive components.
Page 34: Screw List
● Phillips screwdriver #0 ● Phillips screwdriver #1 ● Torx #5 (T5) screwdriver ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, and the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.
Page 35: Major Components Of Optiplex Small Form Factor Plus 7020
Table 27. Screw list (continued) Component Screw type Quantity Screw image Major components of OptiPlex Small Form Factor Plus 7020 The following image shows the major components of OptiPlex Small Form Factor Plus 7020. Working inside your computer...
Page 36 Working inside your computer...
Page 37 17. Slim optical drive (optional) 18. Processor NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options.
Page 38: Chapter 5: Removing And Installing Side Cover
Removing and installing side cover Removing the side cover Prerequisites 1. Follow the procedure in Before working inside your computer. About this task The following images indicate the location of the side cover and provide a visual representation of the removal procedure. Figure 3.
Page 39 Figure 4. Installing the side cover Steps 1. Align the tabs on the side cover with the slots on the chassis. 2. Slide the side cover towards the front of the computer until you hear the release latch click. Next steps 1.
Page 40: Chapter 6: Removing And Installing Coin-Cell Battery
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 procedure in Before working inside your computer.
Page 41 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 6. Installing the coin-cell battery Steps With the positive side (+) facing up, insert the coin-cell battery into the battery socket (RTC) on the system board and snap the battery in place.
Page 42: Chapter 7: Removing And Installing Customer Replaceable Units (Crus)
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 this document may differ from your computer depending on the configuration you ordered. Front bezel Removing the front bezel Prerequisites...
Page 43: Installing The Front Bezel
Figure 7. Removing the front bezel Steps 1. Using a plastic scribe, gently pry and release the front-bezel tabs sequentially from the top. 2. Rotate the front bezel outward from the chassis and remove the front bezel. Installing the front bezel Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 44: 3.5-Inch Hard Drive
Figure 8. Installing the front bezel Steps 1. Insert the tabs on the right side of the bezel into the corresponding slots on the chassis. 2. Push the left-side of the front bezel towards the side cover, snapping the tabs into position. Next steps 1.
Page 45 Figure 9. Removing the 3.5-inch hard drive Steps 1. Disconnect the data and power cables from the hard drive. 2. Press the tab on the hard-drive carrier and lift the hard-drive assembly. Removing and installing Customer Replaceable Units (CRUs)
Page 46: Installing The 3.5-Inch Hard Drive
3. Slide the hard-drive assembly away from the chassis and remove the hard-drive assembly out of the disk-drive cage. 4. Pry the hard-drive carrier to release the mounting points on the carrier from the slots on the hard drive. 5. Lift the hard drive off the hard-drive carrier. Installing the 3.5-inch hard drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 47 Figure 10. Installing the 3.5-inch hard drive Steps 1. Align the mounting points on the carrier with the slots on the hard drive. 2. Slide the hard drive into the hard-drive carrier. Removing and installing Customer Replaceable Units (CRUs)
Page 48: Disk-Drive Cage
3. Align the tabs on the hard-drive carrier with the slots on the chassis and snap the hard-drive assembly onto the disk-drive cage. 4. Connect the data and power cables to the connectors on the hard drive. Next steps 1. Install the side cover.
Page 49: Installing The Disk-Drive Cage
Figure 11. Removing the disk-drive cage Steps 1. If the optical drive is installed, remove the data and power cables from the routing points on the disk-drive cage. 2. Move the lock handle to unlock the disk-drive cage and detach it from the chassis. 3.
Page 50 Figure 12. Installing the disk-drive cage Steps 1. Place the disk-drive cage upside down on the chassis. 2. If the optical drive is installed, connect the data and power cable to the connectors on the optical drive. 3. Rotate the disk-drive cage upside down. 4.
Page 51: Optical Drive
Optical drive Removing the optical drive Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 3.5-inch hard drive, if applicable. 5. Remove the disk-drive cage. About this task NOTE: The optical drive is located within the disk-drive cage.
Page 52: Installing The Optical Drive
2. Gently slide the optical drive out of the disk-drive cage. 3. Pry the slim optical-drive bracket to release it from the slot on the slim optical drive. 4. Remove the slim optical-drive bracket from the slim optical drive. Installing the optical drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 53: Memory
Next steps 1. Install the disk-drive cage. 2. Install the 3.5-inch hard drive, if applicable. 3. Install the front bezel. 4. Install the side cover. 5. Follow the procedure in After working inside your computer. Memory Removing the memory module Prerequisites 1.
Page 54: Installing The Memory Module
NOTE: Note the slot and the orientation of the memory module in order to replace it in the correct slot. 3. Repeat step 1 and 2 to remove any other memory modules installed in your computer. Installing the memory module Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 55: Solid-State Drives
Solid-state drives Removing the M.2 2230 solid-state drive from slot 0 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 M.2 2230 solid-state drive in slot 0 and provide a visual representation of the removal procedure.
Page 56 Figure 18. Installing the M.2 2230 solid-state drive in slot 0 Steps 1. Peel off the protection film on the thermal pad. 2. Align and adhere the thermal pad on the solid-state drive slot 0 (M.2 PCIE SSD-0) on the system board. NOTE: The thermal pad is re-usable.
Page 57: Removing The M.2 2230 Solid-State Drive From Slot 1
Removing the M.2 2230 solid-state drive from slot 1 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 3.5-inch hard drive, if applicable. 5. Remove the disk-drive cage.
Page 58 Figure 20. Installing the M.2 2230 solid-state drives in slot 1 Steps 1. Peel off the protection film on the thermal pad. 2. Align and adhere the thermal pad on the solid-state drive slot 1(M.2 PCIE SSD-1) on the system board. NOTE: The thermal pad is re-usable.
Page 59: Removing The M.2 2280 Solid-State Drive
Removing the M.2 2280 solid-state drive Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 3.5-inch hard drive, if applicable. 5. Remove the disk-drive cage. About this task The following images indicate the location of the M.2 2280 solid-state drive and provide a visual representation of the removal procedure.
Page 60 Figure 22. Installing the M.2 2280 solid-state drive Steps 1. Peel off the protection film on the thermal pad. 2. Align and adhere the thermal pad on the M.2 2280 solid-state drive slot on the system board. NOTE: The thermal pad is re-usable. The thermal pad is pre-installed on computers that are shipped with solid-state drive.
Page 61: Dell Ultra Speed Drive Gen3 Card
About this task The following images indicate the location of the Dell Ultra Speed Drive Gen3 card and provide a visual representation of the removal procedure. Figure 23. Removing Dell Ultra Speed Drive Gen3 card Removing and installing Customer Replaceable Units (CRUs)
Page 62 Figure 24. Removing M.2 2230 solid-state drive from Dell Ultra Speed Drive Gen3 card Removing and installing Customer Replaceable Units (CRUs)
Page 63 1. Pull the tab to open the PCIe door. 2. Press down on the release tab on the PCIe slot (SLOT 2) and lift the Dell Ultra Speed Drive Gen3 card off the system board. 3. Turn the Dell Ultra Speed Drive Gen3 card over.
Page 64 Figure 26. Installing the M.2 2230 solid-state drive on Dell Ultra Speed Drive Gen3 card Removing and installing Customer Replaceable Units (CRUs)
Page 65 Figure 27. Installing the M.2 2280 solid-state drive on Dell Ultra Speed Drive Gen3 card Removing and installing Customer Replaceable Units (CRUs)
Page 66 Steps 1. Slide the M.2 2230 or 2280 solid-state drive into the M.2 2230 or 2280 slot on the Dell Ultra Speed Drive Gen3 card. 2. Install the M.2 solid-state drive standoff nut on to the M.2 2230 or 2280 solid-state drive.
Page 67: Wireless Card
Wireless card Removing the wireless card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 3.5-inch hard drive, if applicable. 5. Remove the disk-drive cage. About this task The following images indicate the location of the wireless card and provide a visual representation of the removal procedure.
Page 68: Installing The Wireless Card
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. Figure 30.
Page 69: External Puck Antenna
Next steps 1. Install the disk-drive cage. 2. Install the 3.5-inch hard drive, if applicable. 3. Install the front bezel. 4. Install the side cover. 5. Follow the procedure in After working inside your computer. External puck antenna Computers that are shipped with Intel Wi-Fi 6E AX211 wireless card come with an external SMA antenna installed. For more information about the installation procedure of external SMA antenna for your computer, see OptiPlex Antenna Installation Guide on the documentation support page of OptiPlex Small Form Factor Plus...
Page 70: Installing The Media-Card Reader
Steps 1. Remove the power-supply cables from the routing guides on the media-card reader bracket. 2. Remove the two screws (M3x5) that secure the media-card reader bracket to the system board and the chassis. 3. Disconnect the media-card reader from its connector (SD CARD) on the system board. 4.
Page 71: Graphics Card
Graphics card Removing the graphics 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 graphics card and provide a visual representation of the removal procedure. Figure 33.
Page 72: Installing The Graphics Card
Installing the graphics 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 graphics card and provide a visual representation of the installation procedure. Figure 34.
Page 73: Internal Speaker
2. Follow the procedure in After working inside your computer. Internal speaker Removing the internal speaker 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 speaker and provide a visual representation of the removal procedure. Figure 35.
Page 74: Intrusion Switch
Figure 36. Installing the speaker Steps 1. Press the tab on the speaker and slide the speaker into the slot on the chassis until it snaps into place. 2. Route the speaker cable through the routing guide on the chassis. 3.
Page 75: Installing The Intrusion Switch
Figure 37. Removing the intrusion switch Steps 1. Disconnect the intrusion-switch cable from its connector (INTRUSION) on the system board. 2. Slide and lift the Intrusion switch away from the computer. Installing the Intrusion switch CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 76 Figure 38. Installing the Intrusion switch Steps 1. Slide the intrusion switch into the slot on the chassis. 2. Connect the intrusion-switch cable to its connector (INTRUSION) on the system board. Next steps 1. Install the side cover. 2. Follow the procedure in After working inside your computer.
Page 77: Chapter 8: Removing And Installing Field Replaceable Units (Frus)
To avoid any potential damage to the component or loss of data, ensure that an authorized service technician replaces the Field Replaceable Units (FRUs). CAUTION: Dell Technologies recommends that this set of repairs, if needed, to be conducted by trained technical repair specialists. CAUTION: As a reminder, your warranty does not cover damages that may occur during FRU repairs that are not authorized by Dell Technologies.
Page 78: Installing The Power Button
Figure 39. Removing the power button Steps 1. Disconnect the power button cable from its connector (PWR SW) on the system board. 2. Press the release tabs on the power-button head and push the power-button head outside the chassis. 3. Slide the power-button cable out from the front-side of the chassis of the computer and remove the power-button from the computer.
Page 79: System Fan
Figure 40. Installing the power button Steps 1. Insert the power-button cable through the slot on the chassis from the front-side of the computer. 2. Align and place the power-button head into the slot on the chassis until it clicks into the place. 3.
Page 80: Installing The System Fan
Figure 41. Removing the system fan Steps 1. Disconnect the system-fan cable from its connector (FAN SYS) on the system board. 2. Gently pull the top two rubber grommets to release the fan from the chassis. NOTE: The rubber grommets must be re-used during system fan replacement. 3.
Page 81 About this task The following images indicate the location of the system fan and provide a visual representation of the installation procedure. Figure 42. Installing the system fan Steps 1. Install the bottom two rubber grommets on the system fan. NOTE: Install the rubber grommets in the direction of the arrow printed on the system fan.
Page 82: Wireless Antenna Module
Next steps 1. Install the disk-drive cage. 2. Install the 3.5-inch hard drive, if applicable. 3. Install the front bezel. 4. Install the side cover. 5. Follow the procedure in After working inside your computer. Wireless antenna module Internal antenna module Removing the internal antenna module CAUTION: The information in this section is intended for authorized service technicians only.
Page 83 Figure 43. Removing the internal antenna module Removing and installing Field Replaceable Units (FRUs)
Page 84 Figure 44. Internal antenna module Steps 1. Gently pull the internal-antenna module cable out from the slot on the chassis. 2. Remove the internal antenna module cable from the routing guides on the chassis. 3. Remove the two screws (M3x3) that secure the internal antenna module to the chassis. 4.
Page 85 Removing and installing Field Replaceable Units (FRUs)
Page 86 Figure 45. Installing the internal antenna module Steps 1. Remove the protection mylars from the internal antennas, if available. 2. Insert the tabs on the internal antennas in the slots on the chassis. The antennas should be installed on the appropriate slots on the chassis. The following table provides guidance on the correct installation method.
Page 87: External Sma Antenna Module
Next steps 1. Install the wireless card. 2. Install the disk-drive cage. 3. Install the 3.5-inch hard drive, if applicable. 4. Install the front bezel. 5. Install the side cover. 6. Follow the procedure in After working inside your computer. External SMA antenna module Removing the external SMA antenna module CAUTION:...
Page 88 Figure 46. Removing the external SMA antenna module Steps 1. Remove the nut and washer from the antenna heads. 2. Gently pry and remove the antenna heads from the chassis. 3. Remove the antenna cables from routing guides on the system board. 4.
Page 89 Figure 47. Installing the external SMA antenna module Steps NOTE: Steps 1, 2, and 3 are required when installing the SMA antenna kit for the first time. Using a screw driver, push and remove the antenna cover from the chassis. 2.
Page 90: Power-Supply Unit
5. Install the 3.5-inch hard drive, if applicable. 6. Install the front bezel. 7. Install the side cover. 8. Follow the procedure in After working inside your computer. Power-supply unit Removing the power-supply unit CAUTION: The information in this section is intended for authorized service technicians only. Prerequisites 1.
Page 91: Installing The Power-Supply Unit
Figure 48. Removing the power-supply unit Steps 1. Disconnect the power-supply cables from their connectors (ATX CPU1, ATX CPU2 and ATX SYS) on the system board. 2. Remove the power-supply cables from the routing guides on the chassis. 3. Remove the three screws (#6-32) that secure the power-supply unit to the chassis. 4.
Page 92 Figure 49. Installing the power-supply unit Steps 1. Place the power-supply unit on the chassis and slide it towards the back of the chassis. 2. Replace the three screws (#6-32) that secure the power-supply unit to the chassis. 3. Route the power-supply cables through their routing guides on the chassis. 4.
Page 93: Processor Fan And Heat-Sink Assembly
Processor fan and heat-sink assembly Removing the processor fan and heat-sink assembly CAUTION: The information in this section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the side cover.
Page 94: Installing The Processor Fan And Heat-Sink Assembly
Installing the processor fan and heat-sink assembly CAUTION: The information in this 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 image indicates the location of the processor fan and heat-sink assembly and provides a visual representation of the installation procedure.
Page 95: Processor
Processor Removing the processor CAUTION: The information in this 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. 4. Remove the 3.5-inch hard drive, if applicable.
Page 96 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 processor and provide a visual representation of the installation procedure. Figure 53. Installing the processor Steps 1.
Page 97: Optional Input/Output Modules
Optional Input/Output modules Serial module Removing the 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 front bezel.
Page 98 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 serial module and provide a visual representation of the installation procedure. Figure 55. Installing the serial module Steps 1.
Page 99: Displayport Module
6. Follow the procedure in After working inside your computer. DisplayPort module Removing the 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.
Page 100 Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the DisplayPort module and provides a visual representation of the installation procedure. Figure 57. Installing the DisplayPort module Steps 1.
Page 101: Hdmi Module
5. Install the side cover. 6. Follow the procedure in After working inside your computer. HDMI module Removing the HDMI 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.
Page 102 Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the HDMI module and provides a visual representation of the installation procedure. Figure 59. Installing the HDMI module Steps 1.
Page 103: Vga Module
6. Follow the procedure in After working inside your computer. VGA module Removing the 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.
Page 104 Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the VGA module and provides a visual representation of the installation procedure. Figure 61. Installing the VGA module Steps 1.
Page 105: Type-C Module
6. Follow the procedure in After working inside your computer. Type-C module Removing the Type-C 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.
Page 106 About this task The following image indicates the location of the Type-C module and provides a visual representation of the installation procedure. Figure 63. Installing the Type-C module Steps 1. Using a screwdriver, remove the Type-C module cover from the chassis. NOTE: This step is applicable only when the Type-C module is being installed for the first time.
Page 107: System Board
System board Removing the system board 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.
Page 108 4. UDIMM slots From the left (a>b>c>d): DIMM 3 DIMM 1 DIMM 4 DIMM 2 5. Hard-drive data connector (SATA-1) 6. M.2 2230 solid-state drive slot (M.2 PCIe SSD-1) 7. Power-button connector (PWR SW) 8. SD-card reader slot (SD CARD) 9.
Page 109 Figure 65. Removing the system board Steps 1. Remove the screw (#6-32) that secures the front I/O bracket to the chassis. 2. Rotate and remove the front I/O-bracket from the chassis. 3. Disconnect the hard-drive data cable from its connector (SATA-0) on the system board. 4.
Page 110 Figure 66. Removing the system board 7. Disconnect the power-supply cables from their connectors (ATX CPU1, ATX CPU2 and ATX SYS) on the system board. 8. Disconnect the power button cable from its connector (PWR SW) on the system board. 9.
Page 111 Figure 67. Removing the system board 12. Remove the four screws (#6-32) that secure the system board to the chassis. 13. Remove the screw mount that secure the system board to the chassis, if applicable. Removing and installing Field Replaceable Units (FRUs)
Page 112: Installing The System Board
Figure 68. Removing the system board 14. Free the system board from the back I/O panel by sliding it towards the right and lift the system board out of the chassis. Installing the system board CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Page 113 Figure 69. System board overview 1. Intrusion-switch connector (INTRUSION) 2. ATX CPU power connector (ATX CPU1 and ATX CPU2) 3. Processor-fan connector (FAN CPU) 4. UDIMM slots From the left (a>b>c>d): DIMM 3 DIMM 1 DIMM 4 DIMM 2 5. Hard-drive data connector (SATA-1) 6.
Page 114 The following images indicate the location of the system board and provide a visual representation of the installation procedure. Figure 70. Installing the system board Steps 1. Align and lower the system board into the system until the stand-off points at the back of the system board align with those on the chassis.
Page 115 Figure 71. Installing the system board 2. Replace the screw mount that secure the system board to the chassis, if applicable. 3. Replace the four (#6-32) screws that secure the system board to the chassis. Removing and installing Field Replaceable Units (FRUs)
Page 116 Figure 72. Installing the system board 4. Route and connect the SATA power cable to its connector (SATA PWR) on the system board. 5. Route and connect the speaker cable to its connector (INT SPKR) on the system board. 6. Route and connect the system-fan cable to its connector (FAN SYS) on the system board. 7.
Page 117 Figure 73. Installing the system board 9. Align the screw hole on the bay-support bracket with the screw hole on the chassis. 10. Replace the two (#6-32) screws that secure the bay-support bracket to the chassis. 11. Route and connect the hard-drive cable to its connector (SATA-0) on the system board. 12.
Page 118: Chapter 9: Software
● Windows 11 Pro ● Windows 11 Pro National Education ● Ubuntu Linux 22.04 LTS Drivers and downloads When troubleshooting, downloading, or installing drivers, it is recommended that you read the Dell Knowledge Base article Drivers and Downloads FAQs 000123347. Software...
Page 119: Chapter 10: Bios Setup
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.
Page 120: System Setup Options
NOTE: It is recommended to shut down the computer, if it is on. The F12 One Time Boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options are: ● Removable Drive (if available) ●...
Page 121 The computer stops booting to the operating system when a component is not authenticated during the boot process. Secure Boot can be enabled in BIOS setup or using management interfaces like Dell Command|Configure, but can only be disabled from BIOS setup.
Page 122 Table 32. System setup options—Boot Configuration menu (continued) Boot Configuration For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that the UEFI firmware validates the operating system during the boot process. NOTE: For Secure Boot to be enabled, the computer is required to be in UEFI boot mode and the Enable Legacy Option ROMs option is required to be turned off.
Page 123 Table 33. System setup options—Integrated Devices menu (continued) Integrated Devices Enable Front USB Ports Enables the front USB ports. By default, the Enable Front USB Ports option is enabled. Enable Rear USB Ports Enables the rear USB ports. By default, the Enable Rear USB Ports option is enabled. Enable USB Boot Support Enables booting from USB mass storage devices that are connected to external USB ports.
Page 124 Table 35. System setup options—Display menu (continued) Display Enable Multi-Display Enables of disables the multi-display feature of the Windows operating system. By default, the Enable Multi-Display option is enabled. Primary Display Primary Display Allows the user to select which video controller will be utilized for primary display if there are multiple video controllers in the system.
Page 125 TPM 2.0 Security On Allows you to enable or disable TPM. By default, the TPM 2.0 Security On option is enabled. For additional security, Dell Technologies recommends keeping TPM 2.0 Security On enabled to allow these security technologies to fully function. BIOS Setup...
Page 126 BIOS. This option returns to the disabled state when the computer restarts. By default, the Clear option is disabled. Dell Technologies recommends enabling the Clear option only when TPM data is required to be cleared. Physical Presence Interface (PPI) Bypass By default, the PPI Bypass for Clear Commands option is disabled.
Page 127 Absolute Absolute Absolute Software provides various cyber security solutions, some requiring software preloaded on Dell computers and integrated into the BIOS. To use these features, you must enable the Absolute BIOS setting and contact Absolute for configuration and activation. By default, the Absolute option is enabled.
Page 128 BIOS passwords. You can modify the minimum 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. Password Bypass The Password Bypass option allows the computer to reboot from the operating system without entering the computer or hard drive password.
Page 129 Allows you to control the automatic boot flow for SupportAssist System Resolution Console and for Dell operating system Recovery Tool. By default, the Dell Auto OS Recovery Threshold value is set to 2. Table 41. System setup options—System Management menu ...
Page 130 Table 41. System setup options—System Management menu (continued) System Management Asset Tag Creates a computer Asset Tag that can be used by an IT administrator to uniquely identify a particular computer. NOTE: Once set in BIOS, the Asset Tag cannot be changed. Wake on LAN Enables or disables the computer to turn on by a special LAN signal.
Page 131 ● Intel Virtualization Technology - X ● Intel Virtualization Technology - Direct By default, the Intel Trusted Execution Technology (TXT) option is enabled. For additional security, Dell Technologies recommends keeping the Intel Trusted Execution Technology (TXT) option enabled. DMA Protection...
Page 132 Table 44. System setup options—Virtualization menu (continued) Virtualization Support By default, the Enable OS Kernel DMA Support option is enabled. NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable. Table 45. System setup options—Performance menu Performance Multi-Core Support Multiple Atom Cores...
Page 133: Updating The Bios
Updating the BIOS in Windows to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information, search in the Knowledge Base Resource at www.dell.com/support. 3. Copy the BIOS setup program file to the bootable USB drive.
Page 134: Updating The Bios From The F12 One-Time Boot Menu
One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.
Page 135: Assigning A System Setup Password
CAUTION: The password features provide a basic level of security for the data on your computer. CAUTION: Anyone can access the data that is stored on your computer, when not locked and left unattended. NOTE: System and setup password feature is disabled. Assigning a System Setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set.
Page 136: Clearing Cmos Settings
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 your application.
Page 137: Chapter 11: Troubleshooting
Check diagnostics About this task SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and launched by the BIOS internally. The embedded system diagnostics provides options for particular devices or device groups allowing you to: ●...
Page 138: System-Diagnostic Lights
It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.
Page 139: Real Time Clock-Rtc Reset
Real Time Clock—RTC reset The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell Latitude and Precision systems from No POST/No Boot/No Power situations. You can initiate the RTC reset on the system from a power-off state only if it is connected to AC power.
Page 140: Chapter 12: Getting Help And Contacting Dell
Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 49. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app...

Dell OptiPlex Small Form Factor Plus 7020 Owner's Manual

Chapter 1: Views of Optiplex Small Form Factor Plus 7020

Chapter 2: Set up Your Computer

Chapter 3: Specifications of Optiplex Small Form Factor Plus 7020

Chapter 4: Working Inside Your Computer

Chapter 5: Removing and Installing Side Cover

Chapter 6: Removing and Installing Coin-Cell Battery

Chapter 7: Removing and Installing Customer Replaceable Units (Crus)

Chapter 8: Removing and Installing Field Replaceable Units (Frus)

Chapter 9: Software

Chapter 10: BIOS Setup

Chapter 11: Troubleshooting

Chapter 12: Getting Help and Contacting Dell

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