Contents Chapter 1: Safety instructions.......................6 Before working inside your computer..........................6 Before you begin ................................7 Electrostatic discharge—ESD protection........................7 ESD field service kit ................................8 Transporting sensitive components..........................9 After working inside your computer..........................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list.....................................
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Wireless card..................................38 Removing the wireless card............................38 Installing the wireless card............................39 Camera assembly................................41 Removing the camera assembly..........................41 Installing the camera assembly..........................42 Bottom cover..................................43 Removing the bottom cover............................. 43 Installing the bottom cover............................44 Heat sink....................................45 Removing the heat sink ............................
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Updating the BIOS in Windows............................94 Updating the BIOS using the USB drive in Windows....................94 Backup media and recovery options..........................94 WiFi power cycle................................94 Drain residual flea power (perform hard reset)......................95 Chapter 6: Getting help and contacting Dell................96 Contents...
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.
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 For this reason, some previously approved methods of handling parts are no longer applicable.
It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
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. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds.
Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Topics: • Recommended tools • Screw list • Stand • Cable cover—optional • Back cover • Hard drive • Memory modules •...
Before working inside your computer. NOTE: When servicing the system, place it on an elevated, clean, and flat surface. Dell recommends removing the stand to avoid accidental damage to the system display during servicing. About this task The following image provides a visual representation of the fixed stand removal procedure.
Steps 1. Press and slide the release button up. 2. Hold the button in the release position and lift the stand upward. 3. Slide the stand downward, to lift the stand off the back cover. Installing the fixed stand Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Before working inside your computer. CAUTION: When servicing the system, place it on an elevated, clean, and flat surface. Dell recommends removing the stand to avoid accidental damage to the system display during servicing. About this task The following image indicates the articulating stand and provides a visual representation of the removal procedure.
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Steps 1. Press and slide the release button up. Removing and installing components...
2. Hold the button in the release position, and lift the stand upward. 3. Slide the stand downward, to lift the stand off the back cover. 4. Pry the rubber feet from the bottom cover and pull it out. Installing the articulating stand Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Before working inside your computer. CAUTION: When servicing the system, place it on an elevated, clean, and flat surface. Dell recommends removing the stand to avoid accidental damage to the system display during servicing. About this task The following image provides a visual representation of the height adjustable stand removal procedure.
Steps 1. Press and slide the release button up. 2. Hold the button in the release position, and lift the stand upward. 3. Slide the stand downward, to lift the stand off the back cover. Installing the height adjustable stand Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align the tabs on the stand with the slots on the back cover. 2. Snap the stand until it clicks into place. Next steps 1. Follow the procedure in After working inside your computer. Cable cover—optional Removing the cable cover Prerequisites 1.
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Steps 1. Unroute the power cable from the slots on the cable cover. 2. Remove the screw (M3x9) that secures the cable cover to the bottom cover. 3. Lift the cable cover from the bottom cover. Removing and installing components...
Installing the cable cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image provides a visual representation of the cable cover installation procedure. Removing and installing components...
Before working inside your computer. CAUTION: When servicing the system, place it on an elevated, clean, and flat surface. Dell recommends removing the stand to avoid accidental damage to the system display during servicing. 2. Remove the stand. 3. Remove the cable cover (optional).
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Steps 1. Press and hold the release tab on the back cover to release it from the latch on the system-board shield. 2. Slide the back cover up to release the tabs on the cover from the slots on the middle frame. 3.
Installing the back cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image provides a visual representation of the back cover installation procedure. Removing and installing components...
Steps 1. Place the back cover on the middle frame and system-board shield and align the tabs on the back cover with the slots on the middle frame. 2. Slide the back cover to lock the release tab under the latch on the system-board shield. Next steps 1.
Installing the hard drive 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 hard drive and provides a visual representation of the installation procedure. Steps 1.
About this task The following image indicates the location of the memory modules and provides a visual representation of the removal procedure. Steps 1. Pry and remove the DIMM door from the system-board shield 2. Using your fingertips, spread apart the securing clips on the memory-module slot until the memory module pops up. 3.
Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it.
About this task The following image indicates the location of the system-board shield and provides a visual representation of the removal procedure. Steps 1. Remove the five screws (M3x5) that secure the system-board shield to the display-assembly base. 2. Lift the system-board shield off the display-assembly base. Installing the system-board shield Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align the screw holes on the system-board shield with the screw holes on the display-assembly base. 2. Replace the five screws (M3x5) to secure the system-board shield to the display-assembly base. Next steps 1. Install the back cover 2.
About this task The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x2.5) that secures the solid-state drive to the system board. 2. Slide and remove the solid-state drive from the M.2 card slot on the system board. Installing the M.2 2230 solid-state drive Prerequisites CAUTION:...
Steps 1. Align the notch on the solid-state drive with the tab on the M.2 card slot. 2. Slide the solid-state drive into the M.2 card slot on the system board. 3. Replace the screw (M2x2.5) to secure the solid-state drive to the system board. Next steps 1.
Steps 1. Remove the screw (M2x2.5) that secures the solid-state drive to the system board. 2. Slide and remove the solid-state drive from the M.2 card slot on the system board. Installing the M.2 2280 solid-state drive/Intel Optane memory module Prerequisites CAUTION: Solid-state drives are fragile.
Steps 1. Align the notch on the solid-state drive with the tab on the M.2 card slot. 2. Slide the solid-state drive into the M.2 card slot on the system board. 3. Replace the screw (M2x2.5) to secure the solid-state drive to the system board. Next steps 1.
Steps 1. Disconnect the system-fan cable from the system board. 2. Remove the three screws (M3x5) that secure the system-fan to the display-assembly base. 3. Lift the system-fan, along with its cable, off the display-assembly base. Installing the fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align the screw holes on the system-fan with the screw holes on the display-assembly base. 2. Replace the three screws (M3x5) to secure the system-fan to the display-assembly base. 3. Connect the system-fan cable to the connector on the system board. Next steps 1.
Steps 1. Using your fingertip or plastic scribe, press on the metal clip to release the coin-cell battery from the coin-cell battery holder. 2. Lift the coin-cell battery from the coin-cell battery holder. Installing the coin-cell battery 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 coin-cell battery and provides a visual representation of the installation procedure.
Steps With the positive-side facing up, insert the coin-cell battery into the battery holder on the system board and gently press the battery until it snaps into place. Next steps 1. Install the system-board shield. 2. Install the back cover 3.
Steps 1. Remove the two screws (M2x4) that secure the wireless-card shield to the system board. 2. Unroute the antenna cables from the routing guides on the display-assembly base. 3. Lift the wireless-card shield out of the system. 4. Remove the screw (M2x4) that secures the wireless-card bracket to the wireless card. 5.
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Steps 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme: Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black 2. Place the wireless-card bracket on the wireless card. 3.
Camera assembly Removing the camera assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional). 4. Remove the back cover. 5. Remove the system-board shield. About this task The following image indicates the location of the camera assembly and provides a visual representation of the removal procedure.
3. Unroute the camera cable from the routing guides on the display-assembly base. 4. Remove the two screws (M3x5) that secure the camera assembly to the middle frame. 5. Slide and remove the camera assembly from the middle frame. Installing the camera assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
5. Align the screw holes on the camera door with the screw holes on the display-assembly base. 6. Replace the two screws (M3x5) to secure the camera assembly door to the display-assembly base. Next steps 1. Install the system-board shield. 2.
Steps 1. Remove the four screws (M3x5) that secure the bottom cover to the display-assembly base. 2. Lift the bottom cover off the display-assembly base. Installing the bottom cover 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 bottom cover and provides a visual representation of the installation procedure.
Heat sink Removing the heat sink Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional). 4. Remove the back cover. 5. Remove the system-board shield. 6. Remove the system fan.
Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure that thermal conductivity is achieved.
Processor Removing the processor Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional). 4. Remove the back cover. 5. Remove the system-board shield. 6. Remove the system fan. 7.
CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 3. Gently lift the processor from the processor socket. Installing the processor Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
CAUTION: Ensure that the processor-cover notch is positioned underneath the alignment post. 3. When the processor is fully seated in the socket, pivot the release-lever down and place it under the tab on the processor cover. Next steps 1. Install the heat sink.
Steps 1. Remove the four screws (M3x5) that secure the rear-I/O bracket to the display-assembly base. 2. Lift the rear-I/O bracket off the display-assembly base. Installing the rear-I/O bracket 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 rear-I/O bracket and provides a visual representation of the installation procedure.
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Steps 1. Align the screw holes on the rear-I/O bracket with the screw holes on the display-assembly base. 2. Replace the four screws (M3x5) that secure the rear-I/O bracket to the display-assembly base. Next steps 1. Install the bottom cover. 2.
System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board. NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program.
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Steps 1. Disconnect the camera cable from the connector on the system board. 2. Disconnect the touchscreen cable from the connector on the system board. 3. Disconnect the system fan cable from the connector on the system board. Removing and installing components...
4. Disconnect the microphone-module cable from the connector on the system board. 5. Disconnect the SIO-signal cable from the connector on the system board. 6. Disconnect the speaker cable from the connector on the system board. 7. Disconnect the audio-board cable from the connector on the system board. 8.
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17. M.2 WLAN connector 18. Power-button cable connector 19. Display back-light cable connector The following image indicates the location of system board and provides a visual representation of the installation procedure. Removing and installing components...
Steps 1. Align the screw holes on the system board with the screw holes on the display-assembly base. 2. Replace the seven screws (M3x5) to secure the system board to the display-assembly base. 3. Connect the camera cable to the connector on the system board. 4.
Steps 1. Disconnect the speaker cable from the connector on the system board. 2. Remove the four screws (M3 4+7.1xZN) that secure the speakers to the display-assembly base. 3. Unroute the speaker cable from the routing guides on the display-assembly base. 4.
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Steps 1. Align the screw holes on the speakers with the screw holes on the display-assembly base. 2. Replace the four screws (M3 4+7.1xZN) to secure the speakers to the display-assembly base. 3. Route the speaker cable through the routing guide on display-assembly base and connect the speaker cable to the system board.
Power-button board Removing the power-button board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional). 4. Remove the back cover. 5. Remove the system-board shield. 6. Remove the rear-I/O bracket.
About this task The following image indicates the location of the power-button board and provides a visual representation of the installation procedure. Steps 1. Align and place the power-button board in the slot on the middle frame. 2. Replace the screw (M3x5) to secure the power-button board to the middle frame. 3.
6. Remove the bottom cover. 7. Remove the rear-I/O bracket. 8. Remove the speaker About this task The following image indicates the location of the microphones and provides a visual representation of the removal procedure. Steps 1. Disconnect the microphone cable from the system board, and unroute it from the routing guides on the display-assembly base.
Steps 1. Align the screw holes on the microphone modules with the screw holes on the middle frame. 2. Replace the two screws (M2x2.5) that secure the microphone modules to the middle frame. 3. Route the microphone cable through the routing guides on the display-assembly base and connect the microphone cable to the system board.
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6. Remove the system-board shield. 7. Remove the bottom cover. 8. Remove the rear-I/O bracket. About this task The following image indicates the location of the side-I/O board and provides a visual representation of the removal procedure. Steps 1. Remove the two screws (M3x5) that secure the side-I/O board shield to the display-assembly base. 2.
Installing the side-I/O board 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 side-I/O board and provides a visual representation of the installation procedure.
Next steps 1. Install the rear-I/O bracket. 2. Install the bottom cover. 3. Install the system-board shield. 4. Install the back cover. 5. Install the cable cover (optional). 6. Install the stand. 7. Follow the procedure in After working inside your computer.
Installing the audio board 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 audio board and provides a visual representation of the installation procedure. Steps 1.
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3. Remove the cable cover (optional). 4. Remove the back cover. 5. Remove the system-board shield. 6. Remove the hard-drive. 7. Remove the wireless card. 8. Remove the system board. 9. Remove the bottom cover. 10. Remove the rear-I/O bracket. 11.
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Steps 1. Remove the antenna cables from the routing guides on the display-assembly base. 2. Remove the two screws (M2x2.5) that secure the antenna modules to the middle frame. 3. Carefully peel the copper foil that secures the antenna cables to the middle frame. 4.
Installing the antenna modules Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image provides a visual representation of the antenna modules installation procedure. Removing and installing components...
Steps 1. Align and place the antenna modules in the slots on the middle frame. 2. Adhere the copper foil that secures the antenna cables to the middle frame. 3. Replace the two screws (M2x2.5) to secure the antenna modules to the middle frame. 4.
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Steps 1. Remove the 8 screws (M3x5) that secure the middle frame and display-assembly base to the display panel. 2. Place the system in an upright position. 3. Holding the top corner, release the display panel away from the middle frame and display-assembly base. Removing and installing components...
4. Route the display back-light, touch screen and display cable through the slots on the display assembly base. 5. Lift the display panel up from the middle frame and display-assembly base. Installing the display panel 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 display panel and provides a visual representation of the installation procedure.
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Steps 1. Place the system in an upright position, and slide the display panel on the slots of the display-assembly base. 2. Route the display-backlight, touch screen, and display cable through the slots on the display-assembly base. 3. Place the display-assembly base on a clean and flat surface with the display panel facing down. 4.
6. Install the heat sink. 7. Install the system-board shield. 8. Install the back cover 9. Install the cable cover (optional). 10. Install the stand. 11. Follow the procedure in After working inside your computer. Middle frame Removing the middle frame Prerequisites 1.
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Steps 1. Remove the 11 screws (M3x5) that secure the middle frame to the display-assembly base. 2. Remove the middle frame and lift the middle frame off the display-assembly base. Removing and installing components...
Installing the middle frame 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 middle frame and provides a visual representation of the installation procedure. Removing and installing components...
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Steps 1. Slide and align the middle frame to the slots on the display-assembly base, then snap the middle frame into place on the display-assembly base. 2. Replace the 11 screws (M3x5) to secure the middle frame to the display-assembly base. Removing and installing components...
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Next steps 1. Install the display panel. 2. Install the antenna module. 3. Install the side-I/O board. 4. Install the microphones. 5. Install the power-button board. 6. Install the system board. 7. Install the camera assembly. 8. Install the speakers. 9.
Operating system • Downloading the drivers Operating system Your Dell Optiplex 3280 All-in-One supports the following operating systems: ● Windows 10 Home (64-bit) ● Windows 10 IoT Enterprise 2019 LTSC (OEM Only) ● Windows 10 Professional (64-bit) ● Windows 10 Pro Education (64-bit) ●...
System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference.
Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self-Test (POST), when the Dell logo appears, you can: ● Access System Setup by pressing F2 key ●...
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Table 3. System setup options—System information menu (continued) General-System Information SLOT2_M.2 Displays the M.2 slot2 information. Processor Information Processor Type Displays the processor type. Core Count Displays the number of cores on the processor. Processor ID Displays the processor identification code. Current Clock Speed Displays the current processor clock speed.
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Table 4. System setup options—System Configuration menu (continued) System Configuration Drives Enable or disable various drives on board. By default, all the options are enabled. SMART Reporting Enable or disable Self-Monitoring, Analysis, and Reporting Technology (SMART) during system startup. By default, the Enable SMART Reporting option is not enabled. USB Configuration Enable USB Boot Support Enable or disable booting from USB mass storage devices such as external...
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Table 5. System setup options—Security menu Security Admin Password Set, change, or delete the administrator password. System Password Set, change, or delete the system password. Internal HDD-0 Password Set, change, or delete the system's internal HDD password. Password Configuration Control the minimum and maximum number of characters allowed for the Admin and System passwords.
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Table 7. System setup options—Intel Software Guard Extensions menu Intel Software Guard Extensions Intel SGX Enable Enable or disable Intel Software Guard Extensions. By default, the Software Controlled option is enabled. Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size. By default, the 128 MB option is enabled.
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Table 9. System setup options—Power Management menu (continued) Power Management Block Sleep Enable or disable block sleep. By default, the option is disabled. Table 10. System setup options—POST Behavior menu POST Behavior Numlock LED Enable or disable Numlock LED. By default, the Enable Numlock LED option is enabled. Keyboard Error Enable or disable the keyboard error detection.
SupportAssist System Resolution Auto OS Recovery Threshold Control the automatic boot flow for SupportAssist System Resolution Console and for the Dell OS Recovery tool. SupportAssist OS Recovery Enable or disable the boot flow for the SupportAssist OS Recovery tool when certain system errors.
8. Double-click the BIOS update file icon and follow the on-screen instructions. For more information, see knowledge base article 000124211 at www.dell.com/support. Updating the BIOS in Linux and Ubuntu To update the system BIOS on a computer that is installed with Linux or Ubuntu, see the knowledge base article 000131486 www.dell.com/support.
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.
Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ●...
Blinking pattern Amber White Problem description Suggested resolution Unrecoverable SPI Flash Failure CPU failure ● Run the Dell Support Assist/Dell Diagnostics tool. ● If problem persists, replace the system board. System board failure (included ● Flash latest BIOS version BIOS corruption or ROM ●...
● If problem persists, replace the system board. CPU Power Cable Connection Issue Recovering the operating system When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell SupportAssist OS Recovery. Troubleshooting...
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.
5. Press and hold the power button for 20 seconds to drain the flea power. 6. Install the battery. 7. Install the base cover. 8. Connect the power adapter to your computer. 9. Turn on your computer. NOTE: For more information about performing a hard reset, see the knowledge base article 000130881 www.dell.com/support. Troubleshooting...
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 20. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Tips Contact Support In Windows search, type Contact Support, and press Enter.