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Dell OptiPlex 7480 All-In-One Service Manual
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Dell OptiPlex 7480 All-In-One Service Manual

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OptiPlex 7480 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 7480 All-In-One

  • Page 1 OptiPlex 7480 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..................................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 Power-supply unit................................45 Removing the power-supply unit (PSU)........................45 Installing the power-supply unit (PSU)........................
  • 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

    Some systems have magnetic surfaces. Ensure that the screws are not left attached to such surface when replacing a component. NOTE: Screw color may vary with the configuration ordered. Table 1. OptiPlex 7480 All-in-One screw list Component Screw type Quantity Screw image Cable cover—optional...
  • Page 11 Table 1. OptiPlex 7480 All-in-One screw list(continued) Component Screw type Quantity Screw image Camera door M3x5 Heat sink—UMA Captive screws Heat sink—Discrete Captive screws Power-supply unit (PSU) M3x5 PSU fan M3x5 Rear-I/O bracket M3x5 System board M3x5 Speakers M3 4+7.1xZN...

  • 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: Removing The Articulating Stand

    About this task The following image provides a visual representation of the fixed stand 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.
  • Page 14 Steps 1. Press and slide the release button up. Removing and installing components...

  • Page 15: 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 16: 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 17: 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 18: 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 19 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 20: 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 21: Back Cover

    Steps 1. Route the power cable through the slots on the cable cover. 2. Align the screw hole on the cable cover with the screw hole on the bottom cover. 3. Replace the screw (M3x9) to secure the cable cover to the bottom cover. Next steps 1.
  • Page 22 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 23: 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 24: 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 25: 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 26: 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 27: 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 28: 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 29: Installing The System-Board Shield

    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. About this task The following image indicates the location of the system-board shield and provides a visual representation of the installation procedure.

  • Page 30: 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 31: Installing The M.2 2230 Solid-State Drive

    About this task The following image indicates the location of the M.2 2230 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 32: 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 33: 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 34: 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 35: Installing The System 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 system fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 36: 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 37: Installing The Coin-Cell Battery

    Steps 1. Using the 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 38: 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 39: Installing The Wireless Card

    Steps 1. Remove the two screws (M2x2.5) 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 (M2x2.5) that secures the wireless-card bracket to the wireless card. 5.
  • Page 40 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 41: 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 42: 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 43: Bottom Cover

    6. Replace the two screws (M3x5) to secure the camera 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 44: 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 45: 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 46 Removing and installing components...

  • Page 47: Installing The Power-Supply Unit (Psu)

    Steps 1. Remove the screw (M3x5) that secures the power-supply socket to the rear-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 48 Removing and installing components...

  • Page 49: 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 50: 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 51: 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 52: 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 53: 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 54: 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 55: 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 56: Installing The Processor

    6. 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 57 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 58: 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.

  • Page 59: 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 60 Removing and installing components...

  • Page 61: 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 three screws (M3x5) to secure the rear-I/O bracket to the display-assembly base. 3. Route the power-supply cables through the routing guide on the rear-I/O bracket. 4.
  • Page 62 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. 2. Remove the stand. 3. Remove the cable cover (optional).
  • Page 63 11. SIO-power cable connector 12. Audio-board cable connector 13. Microphone-module cable connector 14. Speaker cable connector 15. Coin-cell battery 16. Power-button cable connector 17. Display cable connector 18. M.2 WLAN connector 19. PSU-fan cable connector 20. Touchscreen cable connector 21. Processor The following image indicates the location of the system board and provides a visual representation of the removal procedure.
  • Page 64 Steps 1. Disconnect the display back-light cable from the connector on the system board. 2. Disconnect the display cable from the connector on the system board. 3. Disconnect the PSU cable from the connector on the system board. Removing and installing components...

  • Page 65: Installing The System Board

    4. Disconnect the PSU fan cable from the connector on the system board. 5. Open the latch and disconnect the power-button board cable from the connector on the system board. 6. Disconnect the speaker cable from the connector on the system board. 7.
  • Page 66 9. M.2 2230/2280 solid-state drive PCIe connector 10. SIO-signal cable connector 11. SIO-power cable connector 12. Audio-board cable connector 13. Microphone-module cable connector 14. Speaker cable connector 15. Coin-cell battery 16. Power-button cable connector 17. Display cable connector 18. M.2 WLAN connector 19.
  • Page 67 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 system board. 4.

  • Page 68: Speakers

    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. You must make the appropriate changes again after you replace the system board.

  • Page 69: Installing The Speakers

    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. Remove the speaker cable from the routing guides on the display-assembly base. 4.

  • Page 70: Power-Button Board

    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. Power-button board Removing the power-button board Prerequisites 1.

  • Page 71: Installing The Power-Button Board

    Installing the power-button board 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 power-button board installation procedure. Steps 1. Align and place the power-button board in the slot on the middle frame. 2.

  • Page 72: Microphones

    Microphones Removing the microphones 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. 7.

  • Page 73: Installing The Microphones

    Installing the microphones 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 microphones and provides a visual representation of the installation procedure. Steps 1.

  • Page 74: Side I/O-Board

    Side I/O-board Removing the side-I/O 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 hard drive. 6. Remove the system-board shield.

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

    Steps 1. Remove the two screws (M3x5) that secure the side I/O-board shield to the display-assembly base. 2. Lift and remove the side I/O-board shield off the side-I/O board. 3. Disconnect the SIO-signal cable, SIO-power cable, and audio-board cable from the system board. 4.

  • Page 76: Audio Board

    2. Replace the two screws (M2.5x3.5) to secure the side-I/O board to the display-assembly base. 3. Route the SIO-signal cable, SIO-power cable, and audio-board cable through the routing guides on the display-assembly base. 4. Connect the SIO-signal cable, SIO-power cable, and audio-board cable to the connectors on the system board. 5.

  • Page 77: Installing The Audio Board

    Steps 1. Disconnect the audio-board cable from the connector on the system board. 2. Remove the screw (M3x5) that secure the audio board to the display-assembly base. 3. Lift and remove the audio board with the cable off the display-assembly base. Installing the audio board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 78: Antennas

    Steps 1. Align the screw hole on the audio board with the screw hole on the display-assembly base. 2. Replace the screw (M3x5) to secure the audio board to the display-assembly base. 3. Connect the audio-board cable to the system board. Next steps 1.

  • Page 79: Installing The Antenna Modules

    9. 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. Remove the two screws (M2x2.5) that secure the antenna modules to the middle frame. 3.

  • Page 80: Display Panel

    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 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. 7. Remove the bottom cover. 8. Remove the rear-I/O bracket. 9. Remove the speakers. 10. Remove the camera assembly.

  • Page 82: Installing The Display Panel

    Steps 1. Remove the 11 screws (M3x5) that secure the display panel to the middle frame and display-assembly base. 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 10 screws (M3x5) to secure the display panel to the middle frame and display-assembly base. 5. Remove the jig screw 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 provides a visual representation of the middle frame 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

    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 90: System Setup Options

    ○ Windows Boot Manager ○ Onboard NIC (IPV4) ○ Onboard NIC (IPV6) • OTHER OPTIONS ○ BIOS Setup ○ Device Configuration ○ BIOS Flash Update ○ Diagnostics ○ SupportAssist OS Recovery ○ Change Boot Mode Settings ○ Exit Boot Menu and continue System setup options NOTE: Depending on this computer and its installed devices, the items listed in this section may or may not appear.
  • Page 91 Table 3. System setup options—System information menu(continued) General-System Information Maximum Clock Speed Displays the maximum processor clock speed. Processor L2 Cache Displays the processor L2 Cache size. Processor L3 Cache Displays the processor L3 Cache size. HT Capable Displays whether the processor is HyperThreading (HT) capable. 64-Bit Technology Displays whether 64-bit technology is used.
  • Page 92 Table 4. System setup options—System Configuration menu(continued) System Configuration USB Configuration Enable USB Boot Support Enable or disable booting from USB mass storage devices such as external hard drive, optical drive, and USB drive. By default, the Enable USB Boot Support option is enabled. Enable Rear USB Ports Enable or disable booting from USB mass storage devices connected to rear USB port.
  • Page 93 Table 5. System setup options—Security menu(continued) Security Password Bypass Bypass the System (Boot) Password and the internal HDD password prompts during a system restart. By default, the Disabled option is enabled. Password Change Enable or disable changes to the System and Hard Disk passwords when an administrator password is set.
  • Page 94 Table 7. System setup options—Intel Software Guard Extensions menu(continued) Intel Software Guard Extensions Enclave Memory Size Set the Intel Software Guard Extensions Enclave Reserve Memory Size. By default, the 128 MB option is enabled. Table 8. System setup options—Performance menu Performance Multi Core Support Enable multiple cores.
  • Page 95 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. By default, the option is enabled. Fastboot Enable to set the speed of the boot process.

  • 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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