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Dell OptiPlex 5490 All-In-One Service Manual

Dell OptiPlex 5490 All-In-One Service Manual

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OptiPlex 5490 All-In-One
Service Manual
Regulatory Model: W26C
Regulatory Type: W26C003 / W26C004
April 2021
Rev. A00

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Summary of Contents for Dell OptiPlex 5490 All-In-One

  • Page 1 OptiPlex 5490 All-In-One Service Manual Regulatory Model: W26C Regulatory Type: W26C003 / W26C004 April 2021 Rev. A00...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2021 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 Chapter 1: Safety instructions.......................6 Before working inside your computer..........................6 Before you begin ................................7 Safety precautions................................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.....................................
  • Page 4 Wireless card..................................53 Removing the wireless card............................53 Installing the wireless card............................54 Camera assembly................................57 Removing the camera assembly..........................57 Installing the camera assembly..........................58 Bottom cover..................................61 Removing the bottom cover............................61 Installing the bottom cover............................62 Power-supply unit................................64 Removing the power-supply unit (PSU)........................64 Installing the power-supply unit (PSU)........................
  • Page 5 Chapter 5: Troubleshooting....................... 146 SupportAssist diagnostics............................. 146 Display built-in self test..............................146 Diagnostics..................................146 Recovering the operating system..........................148 Flashing BIOS (USB key)............................... 148 Flashing the BIOS................................148 WiFi power cycle................................149 Flea power release................................149 Chapter 6: Getting help and contacting Dell................150 Contents...

  • Page 6: Chapter 1: 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: Before You Begin

    ESD protection is an increasing concern. Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 8: Esd Field Service Kit

    Two recognized types of ESD damage are catastrophic and intermittent failures. ● Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and immediately generates a "No POST/No Video"...

  • Page 9: Transporting Sensitive Components

    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.

  • Page 10: Chapter 2: Removing And Installing Components

    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 •...
  • Page 11 NOTE: 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 7490 All-in-One screw list Component Screw type Quantity Screw image Cable cover—optional...
  • Page 12 M3x5 Side-I/O board M2.5x3.5 Antenna modules M2x2.5 Display panel M3x5 Middle frame M3x5 Audio board M3x5 Table 2. OptiPlex 5490 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...
  • Page 13 Table 2. OptiPlex 5490 All-in-One screw list 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 14: Stand

    Before working inside your computer. CAUTION: When servicing the system, place it on an elevated, clean, and flat surface. Dell Technologies 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 15: 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 16 Removing and installing components...

  • 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. Slide the stand upward 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 Removing and installing components...
  • Page 21 Removing and installing components...

  • Page 22: Installing The Cable Cover

    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. Remove the screw (M3x5) that secures the cable cover to the bottom cover. 4.
  • Page 23 Removing and installing components...
  • Page 24 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. Removing and installing components...

  • Page 25: Back Cover

    4. Replace the screw (M3x5) to secure the cable cover to the bottom cover. Next steps 1. Install the stand. 2. Follow the procedure in After working inside your computer. Back cover Removing the back cover Prerequisites 1. Follow the procedure in Before working inside your computer.
  • Page 26 Removing and installing components...

  • Page 27: Installing The Back Cover

    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 28 Removing and installing components...
  • Page 29 Removing and installing components...
  • Page 30 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 31: Hard Drive

    2. Install the stand. 3. Follow the procedure in After working inside your computer. Hard drive Removing the hard drive Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional).

  • Page 32: 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 33 Removing and installing components...
  • Page 34 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 35: Memory Modules

    Memory modules Removing the memory modules 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. About this task The following image indicates the location of the memory modules and provides a visual representation of the removal procedure.

  • Page 36: 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 37 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 38: System-Board Shield

    Next steps 1. Install the back cover. 2. Install the cable cover (optional). 3. Install the stand. 4. Follow the procedure in After working inside your computer. System-board shield Removing the system-board shield Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 39: 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 40 Removing and installing components...

  • Page 41: 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 42 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. Removing and installing components...

  • Page 43: Installing The M.2 2230 Solid-State Drive

    Installing the M.2 2230 solid-state drive Prerequisites CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive. 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 M.2 2230 solid-state drive and provides a visual representation of the installation procedure.

  • Page 44: Removing The M.2 2280 Solid-State Drive/Intel Optane Memory Moduleremoving The M.2 2280 Solid-State Drive

    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 45: Installing The M.2 2280 Solid-State Drive/Intel Optane Memory Moduleinstalling The M.2 2280 Solid-State Drive

    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 moduleInstalling the M.2 2280 solid-state drive Prerequisites CAUTION: Solid-state drives are fragile.
  • Page 46 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 47: System Fan

    5. Follow the procedure in After working inside your computer. System fan Removing the system fan 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.

  • Page 48: 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 49 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 50: Coin-Cell Battery

    3. Install the cable cover (optional). 4. Install the stand. 5. Follow the procedure in After working inside your computer. Coin-cell battery Removing the coin-cell battery Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3.

  • Page 51: 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 52 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 53: Wireless Card

    Wireless card Removing the wireless card 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 wireless card and provides a visual representation of the removal procedure.

  • Page 54: 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 55 Removing and installing components...
  • Page 56 Steps 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme: Table 3. Antenna-cable color scheme Connectors on the Antenna-cable color Silkscreen marking wireless card △ (white triangle) Main White MAIN Auxiliary Black ▲...

  • Page 57: Camera Assembly

    5. Follow the procedure in After working inside your computer. 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.

  • Page 58: Installing The Camera Assembly

    Steps 1. Remove the two screws (M3x5) that secure the camera-assembly door to the display-assembly base. 2. Disconnect the camera cable from the connector on the system board. 3. Unroute the camera cable from the routing guides on the display-assembly base. 4.
  • Page 59 Removing and installing components...
  • Page 60 Steps 1. Slide the camera assembly on the middle frame, and align the screw holes on the camera assembly with the screw holes on the middle frame. 2. Replace the two screws (M3x5) to secure the camera assembly to the middle frame. 3.

  • Page 61: Bottom Cover

    Bottom cover Removing the bottom cover 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 bottom cover and provides a visual representation of the removal procedure.

  • Page 62: Installing The Bottom Cover

    Steps 1. Remove the four screws (M3x5) that secure the bottom cover to the display-assembly base. 2. Pry and 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.
  • Page 63 Removing and installing components...

  • Page 64: Power-Supply Unit

    Steps 1. Align the screw holes on the bottom cover with the screw holes on the display-assembly base. 2. Replace the four screws (M3x5) to secure the bottom cover to the display-assembly base. Next steps 1. Install the system-board shield. 2.
  • Page 65 Removing and installing components...
  • Page 66 Removing and installing components...

  • Page 67: 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 68 Removing and installing components...
  • Page 69 Removing and installing components...
  • Page 70 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 71: Power-Supply Fan

    5. Install the stand. 6. Follow the procedure in After working inside your computer. Power-supply fan Removing the PSU fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the stand. 3. Remove the cable cover (optional).

  • Page 72: 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 73 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 74: Heat Sink

    2. Install the system-board shield. 3. Install the back cover. 4. Install the cable cover (optional). 5. Install the stand. 6. Follow the procedure in After working inside your computer. Heat sink Removing the heat sink—UMA Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 75: 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 76 Removing and installing components...

  • Page 77: 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 78 About this task The following image indicates the location of the heat sink and provides a visual representation of the heat sink removal procedure. Removing and installing components...

  • Page 79: Installing The Heat Sink-Discrete

    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. 2. Slide and lift the heat sink off the system board and display-assembly base. Installing the heat sink—discrete Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 80 Removing and installing components...

  • Page 81: 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 82 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. Removing and installing components...

  • Page 83: Installing The Processor

    Steps 1. Press the release lever down and then push it away from the processor to release it from the securing tab. 2. Extend the release lever completely, and open the processor cover. 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.
  • Page 84 Removing and installing components...
  • Page 85 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.

  • Page 86: 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 87: 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 88 Removing and installing components...

  • Page 89: 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 90 1. Power-supply unit (PSU) cable connector 2. Coin-cell battery 3. Display back-light cable connector 4. Camera cable connector 5. M.2 2230/2280 solid-state drive/Intel Optane PCIe connector 6. Processor-fan cable connector 7. Memory modules 8. Hard-drive connector 9. M.2 2230/2280 solid-state drive PCIe connector 10.
  • Page 91 1. Power-supply unit (PSU) cable connector 2. Coin-cell battery 3. Display back-light cable connector 4. Camera cable connector 5. M.2 2230/2280 solid-state drive connector 6. Processor-fan cable connector 7. Memory modules 8. Hard-drive connector 9. Side I/O-signal cable connector 10. Side I/O-power cable connector 11.
  • Page 92 Removing and installing components...
  • Page 93 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. Removing and installing components...

  • Page 94: Installing The System Board

    3. Disconnect the PSU cable from the connector on 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.
  • Page 95 7. Memory modules 8. Hard-drive connector 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. Power-button cable connector 16. Display cable connector 17.
  • Page 96 17. PSU-fan cable connector 18. Touchscreen cable connector 19. Processor The following image indicates the location of the system board and provides a visual representation of the installation procedure. Removing and installing components...
  • Page 97 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. Removing and installing components...

  • Page 98: Speakers

    3. Connect the camera cable to the connector system board. 4. Connect the touchscreen cable to the system board. 5. Connect the system fan cable to the system board. 6. Connect the audio-board cable to the system board. 7. Connect the SIO-power cable to the system board. 8.
  • Page 99 About this task The following image indicates the location of the speakers and provides a visual representation of the removal procedure. Removing and installing components...

  • Page 100: 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 101 Removing and installing components...

  • Page 102: 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.
  • Page 103 5. Remove the system-board shield. 6. Remove the bottom cover. 7. Remove the rear-I/O bracket. 8. Remove the speakers. About this task The following image indicates the location of the power-button board and provides a visual representation of the power-button board removal procedure.

  • Page 104: Installing The Power-Button Board

    Steps 1. Open the latch and disconnect the power-button board cable from the connector on the system board. 2. Remove the screw (M3x5) that secures the power-button board to the middle frame. 3. Lift the power-button board away from the middle frame. Installing the power-button board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 105 Removing and installing components...

  • Page 106: 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. Slide the power-button board cable into the connector on the system board and close the latch to secure the cable. Next steps 1.
  • Page 107 Removing and installing components...

  • Page 108: Installing The Microphones

    Steps 1. Disconnect the microphone cable from the system board, and unroute it from the routing guides on the display-assembly base. 2. Remove the two screws (M2x2.5) that secure the microphone modules to the middle frame. 3. Lift the microphone modules off the slots on the middle frame. Installing the microphones Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 109: 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) to 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 110 5. Remove the hard drive. 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. Removing and installing components...

  • Page 111: 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 112 Removing and installing components...
  • Page 113 Steps 1. Align the screw holes on the side I/O-board with the screw holes on the display-assembly base. 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.

  • Page 114: 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 wireless card.

  • Page 115: 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 116: Antenna Modules

    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 117 About this task The following image indicates the location of the antenna modules and provides a visual representation removal procedure of the antenna modules. Removing and installing components...
  • Page 118 Removing and installing components...

  • Page 119: Installing The Antenna Modules

    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.
  • Page 120 Removing and installing components...
  • Page 121 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 122: Display Panel

    8. Install the stand. 9. Follow the procedure in After working inside your computer. 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).
  • Page 123 Removing and installing components...
  • Page 124 Steps 1. Remove the 12 screws (M3x5) that secure the display panel to the middle frame and display-assembly base. 2. Unroute the display back-light cable from the routing guides on the display-assembly base. 3. Place the system in an upright position. Removing and installing components...

  • Page 125: Installing The Display Panel

    4. Holding the top corner, release the display panel away from the middle frame and display-assembly base. 5. Route the display back-light and display cable through the slots on the display-assembly base. 6. 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.
  • Page 126 Removing and installing components...
  • Page 127 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, 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.
  • Page 128 Table 4. Number of jig screws (continued) Display type Number of jig screws Non-touch Three display 6. Route the display back-light cable in the routing guides on the display-assembly base. Next steps 1. Install the fan. 2. Install the PSU. 3.

  • Page 129: Middle Frame

    5. Install the speakers. 6. Install the rear-I/O bracket. 7. Install the bottom cover. 8. Install the hard drive. 9. Install the system-board shield. 10. Install the back cover. 11. Install the cable cover (optional). 12. Install the stand. 13. Follow the procedure in After working inside your computer.
  • Page 130 Removing and installing components...
  • Page 131 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 132: 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 location of the middle frame and provides a visual representation of the middle frame installation procedure.
  • Page 133 Removing and installing components...
  • Page 134 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 135: Chapter 3: 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 136: Chapter 4: 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 137: 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: ● Access System Setup by pressing F2 key ●...
  • Page 138 Table 5. System setup options—System information menu Overview Memory Available Displays the total computer memory available. Memory Speed Displays the memory speed. Memory Channel Mode Displays single or dual channel mode. Memory Technology Displays the technology used for the memory. DIMM_SLOT 1 Displays the DIMM 1 memory size.
  • Page 139 Table 7. System setup options—Integrated Devices menu Integrated Devices Date/Time Displays the current date in MM/DD/YYYY format and current time in HH:MM:SS AM/PM format. Camera Enables or disable the camera. By default, the Enable Camera option is selected Audio Enable Audio Enable or disable the integrated audio controller.
  • Page 140 Table 8. System setup options—Storage menu Storage By default, the Secure Digital (SD) Card option is enabled. Secure Digital (SD) Card Read-Only Mode Enable or disable the SD card read-only mode. By default, the Secure Digital (SD) Card Read-Only Mode option is not enabled.
  • Page 141 Table 11. System setup options—Power menu Power AC Behavior AC Recovery Enables the system to turn on automatically, when AC is inserted. By default, the Power Off option is enabled. Block Sleep Enables to block entering sleep (S3) mode in the operating system. By default, the Block Sleep option is disabled.
  • Page 142 Allow Non-Admin PSID Revert Enable Allow Non-Admin PSID Revert Controls access to the Physical Security ID (PSID) revert of NVMe hard-drives from the Dell Security Manager prompt. By default, the option is disabled. Table 14. System setup options—Update, Recovery menu...
  • Page 143 By default, the option is enabled. Dell Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System Resolution Console and for Dell OS Recovery Tool. By default, the threshold value is set to 2. Table 15. System setup options—System Management menu...
  • Page 144 Table 15. System setup options—System Management menu System Management Keyboard Errors Enable Keyboard Error Detection Numlock LED Enable Numlock LED Enable or disable Numlock LED. By default, the option is enabled. Table 16. System setup options—Keyboard menu Keyboard Keyboard Errors Enable Keyboard Error Detection Enable or disable the keyboard error detection.

  • Page 145: Clearing Cmos Settings

    Clearing BIOS (System Setup) and System passwords About this task To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.

  • Page 146: Chapter 5: Troubleshooting

    Troubleshooting Topics: • SupportAssist diagnostics • Display built-in self test • Diagnostics • Recovering the operating system • Flashing BIOS (USB key) • Flashing the BIOS • WiFi power cycle • Flea power release SupportAssist diagnostics About this task The SupportAssist diagnostics (previously known as ePSA diagnostics) performs a complete check of your hardware. The SupportAssist diagnostics is embedded in the BIOS and is launched by it internally.
  • Page 147 Blinking white—The system is unable to boot to the operating system. This indicates that the power supply is normal but another device in the system is failing or not installed properly. NOTE: See the light patterns to determine if the device that is failing. Off—System is in hibernation or turned off.

  • Page 148: Recovering The Operating System

    It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their primary operating system due to software or hardware failures.

  • Page 149: Wifi Power Cycle

    NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model. 4. Click Drivers & downloads > Find it myself. 5. Select the operating system installed on your computer. 6. Scroll down the page and expand BIOS. 7.

  • Page 150: Chapter 6: 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 22. 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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