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Dell D15S Service Manual
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Dell D15S Service Manual

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Precision 3450 Small Form Factor
Service Manual
Regulatory Model: D15S
Regulatory Type: D15S104
March 2021
Rev. A01

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Summary of Contents for Dell D15S

  • Page 1 Precision 3450 Small Form Factor Service Manual Regulatory Model: D15S Regulatory Type: D15S104 March 2021 Rev. A01...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2020-2021 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: Safety Instructions

    Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

  • Page 4: Safety Precautions

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 For this reason, some previously approved methods of handling parts are no longer applicable.

  • Page 5: Esd Field Service Kit

    Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag. ● Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Working inside your computer...

  • Page 6: Esd Protection Summary

    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 7: Disassembly And Reassembly

    Disassembly and reassembly Topics: • Recommended tools • Screw List • Major components of your system • Side cover • Intrusion switch • Front bezel • Hard-drive assembly • Hard-drive and optical-drive module • Optical drive • Solid-state drive • WLAN card •...

  • Page 8: Major Components Of Your System

    Table 1. Screw list (continued) Component Screw type Quantity Image Support bracket M6x32 Power supply unit M6x32 System board M2x4 6-32 Major components of your system 1. Side cover 2. Memory module 3. I/O panel 4. Fan and Heat-sink assembly 5.
  • Page 9 Steps 1. Slide the release latch to unlock the side cover. 2. Slide the side cover towards the back of the system. 3. Lift the side cover from the system. Disassembly and reassembly...

  • Page 10: Installing The Side Cover

    Installing the side cover Prerequisites About this task The following image indicates the location of the side panels and provides a visual representation of the installation procedure. Disassembly and reassembly...

  • Page 11: Removing The Intrusion Switch

    Steps 1. Place the side cover on your computer. 2. Slide the side cover towards the front of the system till you hear the release latch click. Next steps 1. Follow the procedure in after working inside your computer. Intrusion switch Removing the intrusion switch Prerequisites 1.

  • Page 12: Removing The Front Bezel

    About this task The following image indicates the location of the intrusion switch and provides a visual representation of the installation procedure. Steps 1. Slide the intrusion switch into the slot on the chassis. 2. Connect the intrusion switch cable to the connector on the system board. . Next steps 1.

  • Page 13: Installing The Front Bezel

    Steps 1. Pry the retention tabs to release the front bezel from the system. 2. Rotate and remove the front bezel from the system. Installing the front bezel Prerequisites About this task The following image indicates the location of the front bezel and provides a visual representation of the installation procedure. Disassembly and reassembly...

  • Page 14: Hard-Drive Assembly

    Steps 1. Align the bezel and insert the retention tabs on the bezel into the slots on the system. 2. Press the bezel until the retention tabs click into place. Next steps 1. Install the side cover. 2. Follow the procedure in after working inside your computer.
  • Page 15 Steps 1. Disconnect the hard-disk drive data cable and power cable from the connectors on the hard-disk drive. 2. Push the release tab and slightly lift the hard-disk drive assembly. 3. Release the hard-disk drive assembly from the notch and slide the hard-disk drive assembly out. NOTE: Note the orientation of the hard-disk drive so that you can replace it correctly.
  • Page 16 Steps 1. Pull one side of the hard-disk drive bracket to disengage the pins on the bracket from the slots on the drive. 2. Slide the hard-disk drive out of the bracket 3. Hard-disk drive bracket for the 2.5 in. hard-disk drive. 4.
  • Page 17 Steps 1. 2.5 in. hard-disk drive. 2. Hard-disk drive bracket for the 2.5 in. hard-disk drive. 3. Align and insert the pins on the drive bracket with the slots on the hard-disk drive. 4. 2.5 in. hard-disk drive assembly. Next steps 1.
  • Page 18 Steps 1. Insert the hard-disk drive assembly into the slot on the system and slide the hard-disk drive assembly down. 2. Press down the hard-disk drive assembly, until it clicks into place. 3. Connect the power cable and hard-disk drive cable to the connectors on the hard-disk drive. Next steps 1.
  • Page 19 Steps 1. Remove the hard-disk drive power cable and the SATA cable through the recess in the release latch. Disassembly and reassembly...
  • Page 20 2. Unroute the optical-disk drive cable and the hard-disk drive cable from the retention clip on the hard-disk drive and optical-disk drive module. 3. Slide the release latch to unlock the hard-disk drive and optical-disk drive module. 4. Holding the release latch lift the hard-disk drive and optical-disk drive module. 5.

  • Page 21: Removing The Slim Optical-Drive

    Steps 1. Connect the optical-drive data and power cable to the connectors on the optical-drive and flip the hard-disk drive and optical-disk drive module. 2. Insert the tabs on the hard-disk drive and optical-disk drive module into the slot on the system at an angle. 3.
  • Page 22 About this task The following images indicate the location of the slim optical-drive and provide a visual representation of the removal procedure. Steps 1. Press the release tab on the optical-drive/ hard-drive module. 2. Slide the optical-drive out of the optical-drive/ hard-drive module. 3.

  • Page 23: Solid-State Drive

    Steps 1. Optical drive/ hard drive module. 2. Optical drive unit. 3. Insert the optical drive into the optical drive/ hard drive module. 4. Press the Optical drive unit until it clicks in place. Next steps 1. Install the Front bezel 2.
  • Page 24 4. Remove the 2.5 in. hard drive assembly. About this task The following images indicate the location of the solid-state drive and provide a visual representation of the removal procedure. Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2.

  • Page 25: Removing The M.2 2280 Pcie Solid-State Drive

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector. 2. Insert the solid-state drive at a 45-degree angle into the connector on the system board. 3. Replace the screw (M2x3) that secures the M.2 2230 PCIe solid-state drive to the system board. Next steps 1.

  • Page 26: Installing The M.2 2280 Pcie Solid-State Drive

    Steps 1. Remove the screw (M2x3) that secures the solid-state drive to the system board. 2. Slide and lift the solid-state drive off the system board. Installing the M.2 2280 PCIe solid-state drive Prerequisites About this task The following image indicates the location of the solid-state drive and provides a visual representation of the installation procedure.

  • Page 27: Removing The Wlan Card

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive connector. 2. Insert the solid-state drive at a 45-degree angle into the connector on the system board. 3. Replace the screw (M2x3) that secures the M.2 2280 PCIe solid-state drive to the system board. Next steps 1.

  • Page 28: Installing The Wlan Card

    Steps 1. Remove the (M2x3) screw that secures the WLAN bracket and WLAN card to the system board. 2. Slide and lift the WLAN card bracket away from the WLAN card. 3. Disconnect the antenna cables from the WLAN card. 4.
  • Page 29 Steps 1. Connect the antenna cables to the WLAN card. The following table provides the antenna-cable color scheme for the WLAN card of your computer. Table 2. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black...

  • Page 30: Removing The Sd Card Reader

    SD card reader - optional Removing the SD card reader Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the Side cover 3. Remove the Front bezel 4. Remove the Hard drive assembly 5. Remove the Optical drive assembly About this task The following images indicate the location of the graphics card and provide a visual representation of the removal procedure.

  • Page 31: Removing The Expansion Card

    Steps 1. Align the SD card reader with the screw holes on the system board and replace the two screws (M6X32). 2. Route the power supply cables through the retention clip on the SD card reader. Next steps 1. Install the Optical drive assembly 2.

  • Page 32: Installing The Expansion Card

    Steps 1. Pull the metal tab to open the expansion card latch. 2. Pull the release tab at the base of the expansion card. 3. Lift the expansion card away from the connector on the system board. Installing the expansion card Prerequisites About this task The following image indicates the location of the expansion card and provides a visual representation of the installation...

  • Page 33: Removing The Memory Modules

    Steps 1. Align the notch on the expansion card with the connector on the system board. 2. Place the card in the connector and press down firmly. Ensure that the card is firmly seated. 3. Close the expansion card latch and press it until it clicks into place. Next steps 1.

  • Page 34: Installing The Memory Modules

    3. Remove the front bezel. 4. Remove the 2.5 in. hard drive assembly. 5. Remove the hard-disk drive and optical-disk drive module CAUTION: To prevent damage to the memory module, hold the memory module by the edges. Do not touch the components on the memory module About this task The following images indicate the location of the memory modules and provide a visual representation of the removal procedure.

  • Page 35: Removing The Heatsink

    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 36: Installing The Heat Sink

    Steps 1. Disconnect the fan cable from the connector on the system board. 2. Loosen the four captive screws that secure the heat sink to the system. NOTE: Loosen the screws in a sequential order (1,2,3,4) as mentioned on the system board. 3.

  • Page 37: Removing The Coin-Cell Battery

    Steps 1. Place the heat sink on the processor. 2. Tighten the four captive screws that secure the heat-sink to the system board, as per the callout on the system board. NOTE: Tighten the screws in a sequential order (1,2,3,4) as mentioned on the system board. 3.

  • Page 38: Installing The Coin-Cell Battery

    Steps 1. Using a plastic scribe, gently pry the coin-cell battery out of the battery socket. 2. Remove the coin-cell battery out of the system. Installing the coin-cell battery Prerequisites 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: Removing The Processor

    Steps 1. Insert the coin cell battery with the "+" sign facing up and slide it into the battery socket at an angle. 2. Press the battery into the connector until it clicks into place. Next steps 1. Install the Expansion card.

  • Page 40: Installing The Processor

    Steps 1. Press down and push the release lever away from the processor to release it from the securing tab. 2. Lift the lever upward to lift 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 41 Steps 1. Align the pin-1 corner of the processor with the pin 1 corner of the processor socket, and then place the processor in the processor socket. 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 42: Removing The Power Switch

    Power switch Removing the power switch Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 2.5 in. hard drive assembly. 5. Remove the hard-disk drive and optical-disk drive module About this task The following images indicate the location of the heat-sink and provide a visual representation of the removal procedure.
  • Page 43 About this task The following images indicate the location of the power-supply unit and provide a visual representation of the removal procedure. Disassembly and reassembly...
  • Page 44 Disassembly and reassembly...

  • Page 45: Installing The Power Supply Unit

    Steps 1. Remove the SATA cables from the retention clip on the support bracket. 2. Remove the two screws (M6x32) and slide the support bracket out from the slot. 3. Remove the power-supply cable from the retention clip on the chassis. 4.
  • Page 46 Disassembly and reassembly...
  • Page 47 Steps 1. Align and place the power-supply unit into the slot on the chassis. 2. Slide the power-supply unit into the slot until it clicks in place. 3. Replace the three screws (M6x32) to secure the power-supply unit to the chassis. 4.

  • Page 48: Removing The System Fan

    Next steps 1. Install the hard-disk drive and optical-disk drive module 2. Install the 2.5 in. hard drive assembly. 3. Install the Front bezel 4. Install theSide cover 5. Follow the procedure in After working inside your computer. System fan Removing the system fan Prerequisites 1.

  • Page 49: Removing The System Board

    System board Removing the system board Prerequisites 1. Follow the procedure in before working inside your computer. 2. Remove the side cover. 3. Remove the front bezel. 4. Remove the 2.5 in. hard drive assembly. 5. Remove the solid-state drive. 6.
  • Page 50 Disassembly and reassembly...

  • Page 51: Installing The System Board

    Steps 1. Remove the screw (6-32) that secures the I/O panel to the system chassis. 2. Lift the I/O panel away from the system chassis. 3. Disconnect the intrusion switch cable from the connector on the system board. 4. Disconnect the system board power supply cables. 5.
  • Page 52 Disassembly and reassembly...
  • Page 53 Steps 1. Align and lower the system board into the system until the connectors at the back of the system board align with the slots on the chassis, and the screw holes on the system board align with the standoffs on the system. 2.

  • Page 54: System Board Layout

    11. Align and lower the I/O panel into the slot on the system chassis. 12. Replace the single screw (6-32) to secures the I/O panel to the system chassis. Next steps 1. Install the processor. 2. Install the memory modules. 3.
  • Page 55 Drivers and downloads Topics: • Drivers and downloads Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ SLN128938. Drivers and downloads...

  • Page 56: 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 57 Table 3. System setup options—System information menu (continued) Overview Processor Type Displays the processor type. Maximum Clock Speed Displays the maximum processor clock speed. Minimum Clock Speed Displays the minimum processor clock speed. Current Clock Speed Displays the current processor clock speed. Core Count Displays the number of cores on the processor.
  • Page 58 Table 4. System setup options—Boot Configuration menu (continued) Boot Configuration Boot Sequence Displays the boot sequence. Secure Digital (SD) Card Boot Enable or disable the SD card read-only boot. By default, the Secure Digital (SD) Card Boot option is not enabled. Secure Boot Enable Secure Boot Enable or disable the secure boot feature.
  • Page 59 Table 6. System setup options—Storage menu (continued) Storage By default, the AHCIoption is enabled. Storage Interface Port Enablement Enable or disable the onboard drives. By default, all the options are enabled. SMART Reporting Enable SMART Reporting Enable or disable Self-Monitoring, Analysis, and Reporting Technology (SMART) during computer startup.
  • Page 60 Table 7. System setup options—Display menu (continued) Display Video Primary Display Determines the primary display when multiple controllers are available on the computer By default, the Auto option is enabled. Full Screen Logo Enable or disable full screen logo. By default, the option is not enabled. Table 8.
  • Page 61 Table 9. System setup options—Power menu (continued) Power Block Sleep Enables to block entering sleep (S3) mode in the operating system. By default, the Block Sleep option is disabled. Deep Sleep Control Enable or disable the Deep Sleep mode support. By default, the Disabled option is enabled.
  • Page 62 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 12. System setup options—Update, Recovery menu...
  • Page 63 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 13. System setup options—System Management menu...
  • Page 64 Table 13. System setup options—System Management menu (continued) System Management Dell Development Configuration Enable Flash Updated Signature Override Enable or disable certain features to control BIOS By default, the option is disabled. Table 14. System setup options—Keyboard menu Keyboard Keyboard Errors Enable Keyboard Error Detection Enable or disable the keyboard error detection.

  • Page 65: Flashing The Bios

    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 66: Updating The Bios In Windows

    Steps 1. Restart the computer. 2. Go to Dell.com/support. ● Enter the Service Tag or Express Service Code and click Submit. ● Click Detect Product and follow the instructions on screen. 3. If you are unable to detect or find the Service Tag, click Choose from all products.

  • Page 67: System And Setup Password

    3. Insert the USB flash drive into the computer that requires the BIOS update. 4. Restart the computer and press F12 when the Dell logo appears to display the One Time Boot Menu. 5. Using arrow keys, select USB Storage Device and press Enter.

  • Page 68: Deleting Or Changing An Existing System Setup Password

    Steps 1. In the System BIOS or System Setup screen, select Security and press Enter. The Security screen is displayed. 2. Select System/Admin Password and create a password in the Enter the new password field. Use the following guidelines to assign the system password: ●...

  • Page 69: Troubleshooting

    Check diagnostics About this task SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded with the BIOS and 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 70 Blinking pattern Amber White Problem description Suggested resolution Unrecoverable SPI Flash Failure CPU failure ● Run the Dell Support Assist/Dell Diagnostics tool. ● If problem persists, replace the system board. System board failure (included ● Flash latest BIOS version BIOS corruption or ROM ●...

  • Page 71: Diagnostic Error Messages

    CACHE DISABLED DUE TO FAILURE The primary cache internal to the microprocessor has failed. Contact Dell CD DRIVE CONTROLLER FAILURE The optical drive does not respond to commands from the computer.
  • Page 72 Then, shut down the computer, reinstall the hard drive, and restart the computer. If the problem persists, try another drive. Run the Hard Disk Drive tests in Dell Diagnostics. INSERT BOOTABLE MEDIA The operating system is trying to boot to non-bootable media, such as an optical drive.
  • Page 73 The operating system cannot find a specific track on the hard drive. SHUTDOWN FAILURE A chip on the system board may be malfunctioning. Run the System Set tests in Dell Diagnostics. If the message reappears, Contact Dell. TIME-OF-DAY CLOCK LOST POWER System configuration settings are corrupted. Connect your computer to an electrical outlet to charge the battery.

  • Page 74: System Error Messages

    The computer failed to complete the boot routine three system have failed at checkpoint [nnnn]. For consecutive times for the same error. help in resolving this problem, please note this checkpoint and contact Dell Technical Support CMOS checksum error RTC is reset, BIOS Setup default has been loaded.

  • Page 75: Self-Help Resources

    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 23. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips...

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