Dell OptiPlex 5480 All-in-One Service Manual
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Dell OptiPlex 5480 All-in-One Service Manual

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OptiPlex 5480 All-in-One
Service Manual
Regulatory Model: W26C
Regulatory Type: W26C001/W26C002
May 2020
Rev. A00

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Summary of Contents for Dell OptiPlex 5480 All-in-One

  • Page 1 OptiPlex 5480 All-in-One Service Manual Regulatory Model: W26C Regulatory Type: W26C001/W26C002 May 2020 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, 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 1 Safety instructions........................6 Before working inside your computer..........................6 Before you begin ................................6 Electrostatic discharge—ESD protection.......................... 7 ESD field service kit ................................7 Transporting sensitive components............................ 8 After working inside your computer............................ 8 2 Removing and installing components.................... 10 Recommended tools................................
  • Page 4 Wireless card..................................39 Removing the wireless card............................39 Installing the wireless card............................40 Camera assembly.................................42 Removing the camera assembly..........................42 Installing the camera assembly............................ 43 Bottom cover..................................44 Removing the bottom cover............................44 Installing the bottom cover............................45 Power-supply unit................................46 Removing the power-supply unit (PSU)........................46 Installing the power-supply unit (PSU)........................48 Power-supply fan................................
  • Page 5 System and setup password..............................96 Assigning a system setup password..........................97 Deleting or changing an existing system setup password..................97 5 Troubleshooting......................... 98 Dell SupportAssist Pre-boot System Performance Check diagnostics................98 Running the SupportAssist Pre-Boot System Performance Check............... 98 Display built-in self test...............................98 Diagnostics................................... 99 Recovering the operating system............................100...

  • Page 6: Safety Instructions

    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 shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 7: Electrostatic Discharge-Esd Protection

    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 8: 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.
  • Page 9 2. Connect any external devices, peripherals, or cables you removed before working on your computer. 3. Replace any media cards, discs, or any other parts that you removed before working on your computer. 4. Connect your computer and all attached devices to their electrical outlets. 5.

  • Page 10: Removing And Installing Components

    Removing and installing components NOTE: The images used in this chapter are leveraged from the OptiPlex 7480 All-in-One model for illustration purpose and may slightly vary from the actual system. The images are still applicable to convey the service procedures accurately.
  • Page 11 NOTE: Screw color may vary with the configuration ordered. Table 1. OptiPlex 5480 All-in-One screw list Component Screw type Quantity Screw image Cable cover—optional M3x9 System-board shield M3x5 Bottom cover M3x5 M.2 2230 solid-state drive M2x2.5 M.2 2280 solid-state drive/Intel M2x2.5...

  • Page 12: Stand

    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.

  • Page 13: Installing The Fixed Stand

    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.

  • Page 14: Removing The Articulating Stand

    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.
  • Page 15 Steps 1. Press and slide the release button up. Removing and installing components...

  • Page 16: Installing The Articulating Stand

    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.

  • Page 17: Removing The Height Adjustable Stand

    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.

  • Page 18: Installing The Height Adjustable Stand

    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.

  • Page 19: Cable Cover-Optional

    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.
  • Page 20 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...

  • Page 21: Installing The Cable Cover

    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...

  • Page 22: Back Cover

    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).
  • Page 23 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.

  • Page 24: Installing The Back Cover

    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...

  • Page 25: Hard Drive

    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.

  • Page 26: Installing The Hard Drive

    Steps 1. Press down the tab securing the hard-drive assembly to the system-board shield. 2. Slide and lift the hard-drive assembly from the slot on the display-assembly base. 3. Pry the tabs on hard-drive bracket from its slots on the hard drive. 4.

  • Page 27: Memory Modules

    Steps 1. Align the tabs on the hard-drive bracket with the slots on the hard drive. 2. Flex the hard-drive bracket and replace the remaining tabs on the hard-drive bracket with the slots on the hard drive. 3. Place the hard-drive assembly into the slot and slide it to lock the hard-drive assembly on the display-assembly base. Next steps 1.

  • Page 28: Installing The Memory Modules

    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. Slide and remove the memory module from the memory-module slot. NOTE: Repeat step 2 and 3 if there are two memory modules.

  • Page 29: System-Board Shield

    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.

  • Page 30: Installing The System-Board Shield

    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.

  • Page 31: Solid-State Drive

    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.

  • Page 32: Installing The M.2 2230 Solid-State Drive

    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:...

  • Page 33: Removing The M.2 2280 Solid-State Drive/Intel Optane Memory Module

    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.

  • Page 34: Installing The M.2 2280 Solid-State Drive/Intel Optane Memory Module

    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.

  • Page 35: System Fan

    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.

  • Page 36: Installing The Fan

    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.

  • Page 37: Coin-Cell Battery

    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.

  • Page 38: Installing The Coin-Cell Battery

    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.

  • Page 39: Wireless Card

    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.

  • Page 40: Installing The Wireless Card

    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 wireless-card shield. 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.
  • Page 41 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.

  • Page 42: Camera Assembly

    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.

  • Page 43: Installing The Camera Assembly

    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.

  • Page 44: Bottom Cover

    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. Install the back cover 3. Install the cable cover (optional). 4. Install the stand. 5. Follow the procedure in After working inside your computer.

  • Page 45: Installing The Bottom Cover

    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. Steps 1.

  • Page 46: Power-Supply Unit

    Power-supply unit Removing the power-supply unit (PSU) 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 bottom cover.
  • Page 47 Removing and installing components...

  • Page 48: Installing The Power-Supply Unit (Psu)

    Steps 1. Remove the screw (M3x5) that secures the power supply socket to the I/O bracket. 2. Slide the power-supply socket out of the rear-I/O bracket. 3. Remove the power-supply cable from the routing guides on the rear-I/O bracket and PSU fan. 4.
  • Page 49 Removing and installing components...

  • Page 50: Power-Supply Fan

    Steps 1. Align and place the PSU in the slot on the display-assembly base. 2. Replace the screw (M3x5) to secure the PSU to the display-assembly base. 3. Connect the power-supply cable to the connector on the system board. 4. Route the power-supply cable through the routing guides on the rear-I/O bracket and PSU fan. 5.

  • Page 51: Installing The Psu Fan

    Steps 1. Remove the power-supply cable from the routing guides on the PSU fan. 2. Disconnect the PSU-fan cable from the system board. 3. Remove the two screws (M3x5) that secure the PSU fan to the display-assembly base. 4. Lift the PSU fan from the display-assembly base. Installing the PSU fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 52: Heat Sink

    Steps 1. Align the screw holes on the PSU fan with the screw holes on the display-assembly base. 2. Replace the two screws (M3x5) to secure the PSU fan to the display-assembly base. 3. Connect the PSU-fan cable to the connector on the system board. 4.

  • Page 53: Installing The Heat Sink-Uma

    Steps 1. In reverse sequential order (as indicated on the heat sink), loosen the five captive screws that secure the heat sink to the system board and the display-assembly base. 2. Slide and lift the heat sink off the system board and display-assembly base. Installing the heat sink—UMA Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 54: Removing The Heat Sink-Discrete

    Steps 1. Align the screw holes on the heat sink with the screw holes on the system board and the display-assembly base. 2. In sequential order (as indicated on the heat sink), tighten the five captive screws that secure the heat sink to the system board and display-assembly base.

  • Page 55: Installing The Heat Sink-Discrete

    About this task The following image provides a visual representation of the heat sink removal procedure. Steps 1. In reverse sequential order (as indicated on the heat sink), loosen the nine captive screws that secure the heat sink to the system board and the display-assembly base.

  • Page 56: Processor

    Steps 1. Align the screw holes on the heat sink with the screw holes on the system board and the display-assembly base. 2. In sequential order (as indicated on the heat sink), tighten the nine captive screws to secure the heat sink to the system board and display-assembly base.

  • Page 57: Installing The Processor

    6. Remove the system fan. 7. Remove the heat sink. About this task The following image indicates the location of the processor and provides a visual representation of the removal procedure. Steps 1. Press the release lever down and then push it away from the processor to release it from the securing tab. 2.
  • Page 58 Steps 1. Ensure that the release lever on the processor socket is fully extended in the open position. NOTE: The pin-1 corner of the processor has a triangle that aligns with the triangle on the pin-1 corner on the processor socket. When the processor is properly seated, all four corners are aligned at the same height. If one or more corners of the processor are higher than the others, the processor is not seated properly.

  • Page 59: Rear-I/O Bracket

    Rear-I/O bracket Removing the rear-I/O bracket 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 bottom cover About this task The following image indicates the location of the rear-I/O bracket and provides a visual representation of the removal procedure.

  • Page 60: Installing The Rear-I/O Bracket

    Steps 1. Remove the screw (M3x5) that secures the power-supply socket to the rear-I/O bracket. 2. Remove the power-supply cable from the routing guide on the rear-I/O bracket. 3. Slide and remove the power-supply socket away from the rear-I/O bracket. 4.
  • Page 61 Removing and installing components...

  • Page 62: System Board

    Steps 1. Align the screw holes on the rear-I/O bracket with the screw holes on the display-assembly base. 2. Replace the threescrews (M3x5) that secure the rear-I/O bracket to the display-assembly base. 3. Route the power-supply cable through the routing guide on the rear-I/O bracket. 4.
  • Page 63 NOTE: Replacing the system board removes any changes you have made to the BIOS using the BIOS setup program. You must make the appropriate changes again after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect the cables correctly after you replace the system board.
  • Page 64 15. Speaker cable connector 16. Coin-cell battery 17. Power-button cable connector 18. Display cable connector 19. M.2 WLAN connector 20. PSU-fan cable connector 21. Touch-screen cable connector The following image indicates the location of system board and provides a visual representation of the removal procedure. Removing and installing components...
  • Page 65 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...

  • Page 66: Installing The System Board

    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.
  • Page 67 17. Power-button cable connector 18. Display cable connector 19. M.2 WLAN connector 20. PSU-fan cable connector 21. Touch-screen cable connector The following image indicates the location of system board and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 68: Speakers

    Steps 1. Align the screw holes on the system board with the screw holes on the display-assembly base. 2. Replace the nine 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.

  • Page 69: Installing The Speakers

    About this task The following image indicates the location of the speakers and provides a visual representation of the removal procedure. Steps 1. Disconnect the speaker cable from the connector on the system board. 2. Remove the six screws (M3 4+7.1xZN) that secure the speakers to the display-assembly base. 3.

  • Page 70: Power-Button Board

    Steps 1. Align the screw holes on the speakers with the screw holes on the display-assembly base. 2. Replace the six 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. Next steps 1.

  • Page 71: Installing The Power-Button Board

    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. 7. Remove the speakers. About this task The following image indicates the location of the power-button board and provides a visual representation of the removal procedure. Steps 1.

  • Page 72: Microphones

    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. Route the power-button board cable through the display-assembly base. 4. Connect the power-button board cable to the connector on the system board and close the latch to secure the cable. Next steps 1.

  • Page 73: Installing The Microphones

    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. 2.

  • Page 74: Side I/O-Board

    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.

  • Page 75: Installing The Side-I/O Board

    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.
  • Page 76 About this task The following image indicates the location of the side-I/O board and provides a visual representation of the installation procedure. Steps 1. Align the screw holes on the side-I/O board with the screw holes on the display-assembly base. 2.

  • Page 77: Audio Board

    Audio board Removing the audio 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 bottom cover.

  • Page 78: Antenna Modules

    About this task The following image indicates the location of the audio board and provides a visual representation of the installation procedure. Steps 1. Align the screw hole on the audio board with the screw hole on the display-assembly base. 2.

  • Page 79: Installing The Antenna Modules

    8. Remove the system board. 9. Remove the bottom cover. 10. Remove the rear-I/O bracket. 11. Remove the speakers. About this task The following image provides a visual representation of the antenna modules removal procedure. Steps 1. Remove the antenna cables from the routing guides on the display-assembly base. 2.
  • Page 80 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.

  • Page 81: Display Panel

    Display panel Removing the display panel 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 hard drive.

  • Page 82: Installing The Display Panel

    Steps 1. Remove the 11 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. 4.
  • Page 83 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. Removing and installing components...

  • Page 84: Middle Frame

    4. Replace the ten screws (M3x5) to secure the display panel to the middle frame and display-assembly base. 5. Remove the jig screws from the display panel. 6. Replace the screw (M3x5) to secure the display panel to the middle frame and display assembly base. 7.
  • Page 85 Steps 1. Remove the 17 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...

  • Page 86: Installing The Middle Frame

    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 middle frame and provides a visual representation of the installation procedure. Removing and installing components...
  • Page 87 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 17 screws (M3x5) to secure the middle frame to the display-assembly base. Next steps 1.

  • Page 88: Software

    Downloading the drivers Steps 1. Turn on your computer. 2. Go to www.dell.com/support. 3. Enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.

  • Page 89: System Setup

    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.

  • Page 90: Boot Sequence

    Boot Sequence 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: •...
  • Page 91 Table 3. System setup options—System information menu(continued) General-System 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. Minimum Clock Speed Displays the minimum processor clock speed.
  • Page 92 Table 4. System setup options—System Configuration menu(continued) System Configuration 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 hard...
  • Page 93 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.
  • Page 94 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.
  • Page 95 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.

  • Page 96: System And Setup Password

    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.

  • Page 97: Assigning A System Setup Password

    Assigning a system setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set. About this task To enter the system setup, press F2 immediately after a power-on or reboot. Steps 1.

  • Page 98: Troubleshooting

    About this task The 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 is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to: •...

  • Page 99: Diagnostics

    3. Press and hold the power button. 4. Release the power button. 5. Hold the display built-in self test button until the test starts. Diagnostics Power status indicator light: Indicates the power status. Solid amber—The system is unable to boot to the operating system. This indicates that the power supply or another device in the system is failing.

  • Page 100: Recovering The Operating System

    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 101: Wifi Power Cycle

    Follow these steps to flash the BIOS: Steps 1. Turn on your computer. 2. Go to www.dell.com/support. 3. Click Product support, enter the Service Tag of your computer, and then click Submit. NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.

  • Page 102: 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 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.

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