Dell OptiPlex 5070 Tower Service Manual

Dell OptiPlex 5070 Manual

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  • Dell OptiPlex 5070 | Tower Service Manual - Page 1
    OptiPlex 5070 Tower Service Manual Regulatory Model: D18M Regulatory Type: D18M005
  • Dell OptiPlex 5070 | Tower Service Manual - Page 2
    and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may
  • Dell OptiPlex 5070 | Tower Service Manual - Page 3
    Contents 1 Working on your computer...7 Safety instructions...7 Before working inside your computer...7 Safety precautions...8 Electrostatic discharge-ESD protection...8 ESD field service kit ...9 Transporting sensitive components...9 After working inside your computer...10 2 Technology and
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    Removing M.2 SSD ...34 Installing M.2 SSD...35 SD card reader...36 Removing SD card reader...36 Installing SD card reader...37 Memory module...38 Removing memory module...38 Installing memory module...39 Expansion card...40 Removing PCIe expansion card...40 Installing PCIe expansion card...41
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    2.5-inch hard drive assembly ...76 Removing the 2.5-inch hard drive assembly...76 Installing the 2.5-inch drive assembly...76 2.5-inch hard drive...77 Optical drive...78 Removing optical drive...78 Installing optical drive...80 M.2 SSD ...82 Removing M.2 SSD ...82 Installing M.2 SSD...83 SD card
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    board...114 Installing the system board...117 5 Troubleshooting...120 Enhanced Pre-Boot System Assessment - ePSA diagnostics 120 Running the ePSA Diagnostics...120 Diagnostics...120 Diagnostic error messages...122 System error messages...125 6 Getting help...126 Contacting Dell...126 6 Contents
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    only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came
  • Dell OptiPlex 5070 | Tower Service Manual - Page 8
    disassembly instructions. electrocuted. Standby power Dell products with standby power through the use of a field service electrostatic discharge (ESD) kit. When obvious, such as intermittent problems or a shortened product of damage to recognize and troubleshoot is the intermittent (also called
  • Dell OptiPlex 5070 | Tower Service Manual - Page 9
    desktop or portable environment. Servers are typically installed in a rack within a data center; desktops service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell muscles. Abdominal muscles support your spine when you
  • Dell OptiPlex 5070 | Tower Service Manual - Page 10
    4. Keep the load close. The closer it is to your spine, the less force it exerts on your back. 5. Keep your back upright, whether lifting or setting down the load. Do not add the weight of your body to the load. Avoid twisting your body and back. 6. Follow the same techniques in reverse to set the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 11
    memory into the system. DDR4 needs 20 percent less or just 1.2 volts, compared to DDR3 which requires 1.5 volts of electrical power to operate. DDR4 also supports a new, deep power-down mode that allows the host device to go into standby without needing to refresh its memory. Deep power-down mode is
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    all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory and peripheral devices like mice, keyboards, external drivers, and printers. Let's take a quick features • Full-duplex data transfers and support for new transfer types • Backward USB
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    USB territory, like external RAID storage systems. Listed below are some of the available SuperSpeed USB 3.0/USB 3.1 Gen 1 products: • External Desktop USB 3.0/USB 3.1 Gen 1 Hard Drives • Portable USB 3.0/USB 3.1 Gen 1 Hard Drives • USB 3.0/USB 3.1 Gen 1 Drive Docks & Adapters • USB 3.0/USB 3.1 Gen
  • Dell OptiPlex 5070 | Tower Service Manual - Page 14
    drivers for USB 3.0/USB 3.1 Gen 1 controllers. Microsoft announced that Windows 7 would have USB 3.1 Gen 1 support, perhaps not on its immediate release, but in a subsequent Service device should be able to use. USB Type-C ports can support a variety of different protocols using "alternate modes,"
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    theaters • HDMI Micro Connector - A new, smaller connector for phones and other portable devices, supporting video resolutions up Storage Technology driver version 15.9.1.1018 or higher Table 2. Intel Optane memory specifications Feature Interface Connector Configurations supported Capacity
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    Technology as it will result in a blue screen error. The Intel Rapid Storage Technology user interface can be removed without uninstalling the driver. NOTE: Disabling Intel Optane memory is required before removing the SATA storage device, accelerated by the Intel Optane memory module, from the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 17
    3 Major components of your system 1. Side cover 2. 3.5-inch Hard drive assembly 3. Optical drive 4. Heatsink assembly 5. Processor 6. Memory module 7. M.2 PCIe SSD 8. Power button 9. System board 10. Front panel door 11. Bezel 12. 2.5-inch Hard drive assembly 13. Speaker 14. System fan 15. Power
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    NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options. 18 Major components of your system
  • Dell OptiPlex 5070 | Tower Service Manual - Page 19
    components Side cover Removing side cover 1. Follow the procedure in Before working inside your computer. 2. To remove the cover: a) Slide the release latch to release the cover from the system [1]. b) Slide the cover towards the back of the system and lift it from the system [2]. Installing side
  • Dell OptiPlex 5070 | Tower Service Manual - Page 20
    front bezel 1. Follow the procedure in Before working inside your computer. 2. Remove the Side cover. 3. To remove the front bezel: a) Pry the retention tabs to release the front bezel from the system. b) Remove the front bezel from the system. 20 Removing and installing components
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    Installing front bezel 1. To install the front bezel: a) Position the bezel to align the tab holders with the slots on the system chassis. b) Press the bezel until the tabs click into place. Removing and installing components 21
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    2. Install the Side cover. 3. Follow the procedure in After working inside your computer. Front panel door Opening front panel door 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel CAUTION: The front panel door opens only to a limited extent
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    Closing front panel door 1. Turn the front panel door to close it. Removing and installing components 23
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    2. Install the: a) Front bezel b) Side cover 3. Follow the procedure in After working inside your computer. Hard drive assembly-3.5-inch and 2.5-inch Removing 3.5-inch hard drive assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3.
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    b) Remove the HDD filler bracket from the system [1]. c) Press the blue tab [2] and pull the hard drive assembly out of the system [3]. Removing 3.5-inch hard drive from the hard drive bracket 1. Follow the procedure in Before working inside your computer. 2. Remove the: Removing and installing
  • Dell OptiPlex 5070 | Tower Service Manual - Page 26
    a) Side cover b) Front bezel c) 3.5-inch HDD assembly 3. To remove the hard drive : a) Pull one side of the hard drive bracket to disengage the pins on the bracket from the slots on the hard drive [1]. b) Lift the hard drive out of the hard drive bracket [2]. Installing the 3.5-inch hard drive into
  • Dell OptiPlex 5070 | Tower Service Manual - Page 27
    3. Connect the SATA cable and the power cable to the connectors on the hard drive. 4. Install the: a) Front bezel b) Side cover 5. Follow the procedure in After working inside your computer. Removing and installing components 27
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    Removing the 2.5-inch hard drive assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the hard drive assembly: a) Disconnect the hard drive data and power cables from the connectors on the 2.5-
  • Dell OptiPlex 5070 | Tower Service Manual - Page 29
    Installing the 2.5-inch hard drive into the hard drive bracket 1. To install the hard drive: a) Align the hard drive to the side of the hard drive bracket, and pull the other end tabs to insert the pins on the bracket into the hard drive. b) Insert the hard drive into the hard drive bracket until it
  • Dell OptiPlex 5070 | Tower Service Manual - Page 30
    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After Working Inside Your Computer. Optical drive Removing optical drive 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 31
    c) Press the blue release tab [1] and slide the optical drive out of the system [2]. Removing and installing components 31
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    Installing optical drive 1. To install the optical drive: a) Close the front panel door. b) Insert the optical drive into the optical drive bay until it clicks into place. 32 Removing and installing components
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    c) Open the front panel door [1]. d) Route the cables under the drive cage. e) Connect the optical drive data cable and power cable to the connectors on the optical drive [2]. Removing and installing components 33
  • Dell OptiPlex 5070 | Tower Service Manual - Page 34
    2. Install the: a) Front bezel b) Side cover 3. Follow the procedure in After working inside your computer. M.2 PCIe SSD Removing M.2 SSD 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the M.2 SSD
  • Dell OptiPlex 5070 | Tower Service Manual - Page 35
    Installing M.2 SSD 1. Insert the M.2 SSD to the connector on the system board [1]. 2. Replace the single screw to secure the SSD to the system board [2]. Removing and installing components 35
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    3. Close the front panel door. 4. Install the: a) Front bezel b) Side cover 5. Follow the procedure in After working inside your computer. SD card reader Removing SD card reader 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 37
    Installing SD card reader 1. To install the SD card reader: a) Insert the SD card reader into the slot on the front panel door [1]. b) Replace the screw to secure the SD card reader to the front panel door [2]. c) Connect the SD card reader cable to the connector on the system board [3]. Removing
  • Dell OptiPlex 5070 | Tower Service Manual - Page 38
    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After working inside your computer. Memory module Removing memory module 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 39
    Installing memory module 1. To install the memory module: a) Align the notch on the memory module with the tab on the memory module connector. b) Insert the memory module into the memory module socket [1]. c) Press the memory module until the memory module retention tabs click into place [2].
  • Dell OptiPlex 5070 | Tower Service Manual - Page 40
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the PCIe expansion card: a) Pull the release latch to unlock the PCIe expansion card [1]. b) Push the card retention latch [2], and lift the PCIe expansion card out of the computer [3]. NOTE
  • Dell OptiPlex 5070 | Tower Service Manual - Page 41
    5. Repeat the steps to remove any additional PCIe expansion card. Installing PCIe expansion card 1. To install the PCIe expansion card: a) Insert the PCIe expansion card to the connector on the system board [1]. b) Secure the PCIe expansion card by pushing the card retention latch until it clicks
  • Dell OptiPlex 5070 | Tower Service Manual - Page 42
    c) Pull the release latch forward to close [2]. d) Repeat the steps to install any additional PCIe expansion card. 2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4.
  • Dell OptiPlex 5070 | Tower Service Manual - Page 43
    optional VGA module 1. To remove the metal bracket as shown below, insert a flathead screwdriver in the hole of the bracket [1], push the bracket to release the bracket [2], and then lift the bracket out from the system. 2. Insert the VGA module into its slot from the inside of your computer
  • Dell OptiPlex 5070 | Tower Service Manual - Page 44
    unit or PSU 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To release the PSU: a) Disconnect the PSU cables from the connectors on the system board [1]. b) Unroute the PSU cables from the retention clips
  • Dell OptiPlex 5070 | Tower Service Manual - Page 45
    5. To remove the PSU: a) Remove the 3 screws that secure the PSU to the system [1]. b) Press the release tab [2]. c) Slide and lift the PSU away from the computer [3]. Removing and installing components 45
  • Dell OptiPlex 5070 | Tower Service Manual - Page 46
    Installing power supply unit or PSU 1. To install the PSU: a) Insert the PSU into the PSU slot and slide it towards the back of the system until it clicks into place [1]. b) Replace the three screws to secure the PSU to the computer [2] . 46 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 47
    c) Connect the PSU cables to the connectors on the system board [1]. d) Route the PSU cables through the retention clips [2, 3, 4, 5]. e) Connect the PSU cable to the connector on the system board [6]. Removing and installing components 47
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    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After working inside your computer. Intrusion switch Removing intrusion switch 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open
  • Dell OptiPlex 5070 | Tower Service Manual - Page 49
    Installing intrusion switch 1. Insert the intrusion switch into the slot on the system [1]. 2. Route the intrusion switch cable through the fan grommet [2]. 3. Connect the intrusion switch cable to the connector on the system board [3]. Removing and installing components 49
  • Dell OptiPlex 5070 | Tower Service Manual - Page 50
    the power button: a) Disconnect the power button cable from the system board [1]. b) Unroute the power button cable through the retention clip [2]. c) Press the release tabs using a plastic scribe and slide the power button out from the front of the system [3]. d) Close the front panel door [4]. 50
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    5. Pull the power button out from the computer. Removing and installing components 51
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    Installing power button 1. Insert the power switch into the slot from the front of the computer and press it until it clicks into place. 52 Removing and installing components
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    2. Open the front panel door [1] 3. Route the power switch cable from the power button through the retention clip [2, 3]. 4. Align the cable with the pins on the connector and connect the power button cable [4]. Removing and installing components 53
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    5. Close the front panel door. 6. Install the: a) Front bezel b) Side cover 7. Follow the procedure in After working inside your computer. Speaker Removing speaker 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door
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    Installing speaker 1. Insert the speaker into the slot and press it until it clicks into place [1]. 2. Connect the speaker cable to the connector on the system board [2]. Removing and installing components 55
  • Dell OptiPlex 5070 | Tower Service Manual - Page 56
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the coin cell battery: a) Press the release latch until the coin cell battery pops out [1]. b) Remove the coin cell battery from the connector on the system board [2]. 56 Removing and
  • Dell OptiPlex 5070 | Tower Service Manual - Page 57
    NOTE: Removing the coin cell battery may reset the system board BIOS/Settings Installing the coin cell battery 1. Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector [1]. 2. Press the battery into the connector until it
  • Dell OptiPlex 5070 | Tower Service Manual - Page 58
    from the connector on the system board [1]. b) Remove the screws that secure the fan to the heat sink [2]. NOTE: Ensure to insert the Torx screw driver from top screw hole to remove the screws. c) Lift the heatsink fan away from the computer [3]. 58 Removing and installing components
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    Installing heatsink fan 1. Place the fan on the heatsink assembly [1]. 2. Tighten the screws (4) to secure the fan to the heatsink assembly [2]. 3. Connect the heatsink fan assembly cable to the connector on the system board [3]. Removing and installing components 59
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    4. Close the front panel door. 5. Install the: a) Front bezel b) Side cover 6. Follow the procedure in After working inside your computer. Heat sink Removing heatsink assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 61
    Installing heatsink assembly 1. Align the screws of the heatsink assembly with the holders on the system board and place the heatsink assembly on the processor [1]. 2. Tighten the captive screws to secure the heatsink assembly to the system board [2]. NOTE: Tighten the screws in a sequential order
  • Dell OptiPlex 5070 | Tower Service Manual - Page 62
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. Remove the heatsink assembly. 5. To remove the processor: a) Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1]. b) Lift the lever upward and lift
  • Dell OptiPlex 5070 | Tower Service Manual - Page 63
    CAUTION: Do not touch the processor socket pins, they are fragile and can be permanently damaged. Be careful not to bend the pins in the processor socket when removing the processor out of the socket. Installing processor 1. Place the processor on the socket such that the slots on the processor
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    4. Install the heatsink assembly. 5. Close the front panel door. 6. Install the: a) Front bezel b) Side cover 7. Follow the procedure in After working inside your computer. System fan Removing system fan 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b)
  • Dell OptiPlex 5070 | Tower Service Manual - Page 65
    c) Disconnect the system fan cable from the connector on the system board [1]. d) Stretch the grommets securing the fan to the computer to ease the removal of the fan [2]. e) Slide the system fan out of the computer [3]. Removing and installing components 65
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    Installing system fan 1. Insert the grommets into the slots on the back of the computer. 2. Hold the system fan with the cable facing the bottom of the computer. 3. Align the grooves of the system fan with the grommets on the chassis wall. 4. Pass the grommets through the corresponding grooves on
  • Dell OptiPlex 5070 | Tower Service Manual - Page 67
    7. Route the intrusion switch cable through the fan grommet [2]. 8. Insert the intrusion switch cable into the system board [1]. Removing and installing components 67
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    9. Close the front panel door. 10. Install the: a) Front bezel b) Side cover 11. Follow the procedure in After working inside your computer. System board Removing system board 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 69
    6. Disconnect the following cables from the system board: a) CPU power [1] b) Hard drive data and optical drive data [2] c) Speaker [3] d) System power [4] e) SATA [5] 7. To remove the system board: a) Remove the screws that secure the system board to the computer [1]. Removing and installing
  • Dell OptiPlex 5070 | Tower Service Manual - Page 70
    b) Slide and lift the system board away from the computer [1, 2]. 70 Removing and installing components
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    Front panel door Opening front panel door 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel CAUTION: The front panel door opens only to a limited extent. See the printed image on the front panel door for the maximum permissible level. 3. Pull
  • Dell OptiPlex 5070 | Tower Service Manual - Page 72
    2. Install the: a) Front bezel b) Side cover 3. Follow the procedure in After working inside your computer. 3.5-inch hard drive Removing 3.5-inch hard drive assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. To remove the hard
  • Dell OptiPlex 5070 | Tower Service Manual - Page 73
    b) Remove the HDD filler bracket from the system [1]. c) Press the blue tab [2] and pull the hard drive assembly out of the system [3]. Installing 3.5-inch hard drive assembly 1. Insert the hard drive assembly into the slot on the system until it clicks into place [1]. 2. Replace the HDD filler
  • Dell OptiPlex 5070 | Tower Service Manual - Page 74
    3. Connect the SATA cable and the power cable to the connectors on the hard drive. 4. Install the: a) Front bezel b) Side cover 5. Follow the procedure in After working inside your computer. 74 Removing and installing components
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    3.5-inch hard drive Removing 3.5-inch hard drive from the hard drive bracket 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel c) 3.5-inch HDD assembly 3. To remove the hard drive : a) Pull one side of the hard drive bracket to disengage the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 76
    2.5-inch hard drive assembly Removing the 2.5-inch hard drive assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the hard drive assembly: a) Disconnect the hard drive data and power cables
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    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After Working Inside Your Computer. 2.5-inch hard drive Removing the 2.5-inch drive from the drive bracket 1. Follow the procedure in Before Working Inside Your Computer. 2. Remove the: a) Side
  • Dell OptiPlex 5070 | Tower Service Manual - Page 78
    Installing the 2.5-inch hard drive into the hard drive bracket 1. To install the hard drive: a) Align the hard drive to the side of the hard drive bracket, and pull the other end tabs to insert the pins on the bracket into the hard drive. b) Insert the hard drive into the hard drive bracket until it
  • Dell OptiPlex 5070 | Tower Service Manual - Page 79
    c) Press the blue release tab [1] and slide the optical drive out of the system [2]. Removing and installing components 79
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    Installing optical drive 1. To install the optical drive: a) Insert the optical drive into the optical drive bay until it clicks into place [1]. b) Open the front panel door [2]. 80 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 81
    c) Route the cables under the drive cage. d) Connect the optical drive data cable and power cable to the connectors on the optical drive [1] . e) Close the front panel door [2]. Removing and installing components 81
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    2. Install the: a) Front bezel b) Side cover 3. Follow the procedure in After working inside your computer. M.2 SSD Removing M.2 SSD 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the M.2 SSD: a)
  • Dell OptiPlex 5070 | Tower Service Manual - Page 83
    Installing M.2 SSD 1. Insert the M.2 SSD to the connector on the system board [1]. 2. Replace the single screw to secure the SSD to the system board [2]. Removing and installing components 83
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    3. Close the front panel door. 4. Install the: a) Front bezel b) Side cover 5. Follow the procedure in After working inside your computer. SD card reader Removing SD card reader 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 85
    Installing SD card reader 1. To install the SD card reader: a) Insert the SD card reader into the slot on the front panel door [1]. b) Replace the screw to secure the SD card reader to the front panel door [2]. c) Connect the SD card reader cable to the connector on the system board [3]. Removing
  • Dell OptiPlex 5070 | Tower Service Manual - Page 86
    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After working inside your computer. Memory module Removing memory module 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 87
    Installing memory module 1. To install the memory module: a) Align the notch on the memory module with the tab on the memory module connector. b) Insert the memory module into the memory module socket [1]. c) Press the memory module until the memory module retention tabs click into place [2].
  • Dell OptiPlex 5070 | Tower Service Manual - Page 88
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the PCIe expansion card: a) Pull the release latch to unlock the PCIe expansion card [1]. b) Push the card retention latch [2], and lift the PCIe expansion card out of the computer [3]. NOTE
  • Dell OptiPlex 5070 | Tower Service Manual - Page 89
    5. Repeat the steps to remove any additional PCIe expansion card. Installing PCIe expansion card 1. To install the PCIe expansion card: a) Insert the PCIe expansion card to the connector on the system board [1]. b) Secure the PCIe expansion card by pushing the card retention latch until it clicks
  • Dell OptiPlex 5070 | Tower Service Manual - Page 90
    unit or PSU 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To release the PSU: a) Disconnect the PSU cables from the connectors on the system board [1]. b) Unroute the PSU cables from the retention clips
  • Dell OptiPlex 5070 | Tower Service Manual - Page 91
    5. To remove the PSU: a) Remove the 3 screws that secure the PSU to the system [1]. b) Press the release tab [2]. c) Slide and lift the PSU away from the computer [3]. Removing and installing components 91
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    Installing power supply unit or PSU 1. To install the PSU: a) Insert the PSU into the PSU slot and slide it towards the back of the system until it clicks into place [1]. b) Replace the three screws to secure the PSU to the computer [2] . 92 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 93
    c) Connect the PSU cables to the connectors on the system board [1]. d) Route the PSU cables through the retention clips [2, 3, 4, 5]. e) Connect the PSU cable to the connector on the system board [6]. Removing and installing components 93
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    2. Close the front panel door. 3. Install the: a) Front bezel b) Side cover 4. Follow the procedure in After working inside your computer. Intrusion switch Removing intrusion switch 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open
  • Dell OptiPlex 5070 | Tower Service Manual - Page 95
    Installing intrusion switch 1. Insert the intrusion switch into the slot on the system [1]. 2. Route the intrusion switch cable through the fan grommet [2]. 3. Connect the intrusion switch cable to the connector on the system board [3]. Removing and installing components 95
  • Dell OptiPlex 5070 | Tower Service Manual - Page 96
    the power button: a) Disconnect the power button cable from the system board [1]. b) Unroute the power button cable through the retention clip [2]. c) Press the release tabs using a plastic scribe and slide the power button out from the front of the system [3]. d) Close the front panel door [4]. 96
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    5. Pull the power button out from the computer. Removing and installing components 97
  • Dell OptiPlex 5070 | Tower Service Manual - Page 98
    Installing power button 1. Insert the power switch into the slot from the front of the computer and press it until it clicks into place [1]. 2. Open the front panel door [2] 98 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 99
    3. Route the power switch cable from the power button through the retention clip [2]. 4. Align the cable with the pins on the connector and connect the power button cable [3]. Removing and installing components 99
  • Dell OptiPlex 5070 | Tower Service Manual - Page 100
    5. Close the front panel door. 6. Install the: a) Front bezel b) Side cover 7. Follow the procedure in After working inside your computer. Speaker Removing speaker 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door
  • Dell OptiPlex 5070 | Tower Service Manual - Page 101
    Installing speaker 1. Insert the speaker into the slot and press it until it clicks into place [1]. 2. Connect the speaker cable to the connector on the system board [2]. Removing and installing components 101
  • Dell OptiPlex 5070 | Tower Service Manual - Page 102
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. To remove the coin cell battery: a) Press the release latch until the coin cell battery pops out [1]. b) Remove the coin cell battery from the connector on the system board [2]. 102 Removing and
  • Dell OptiPlex 5070 | Tower Service Manual - Page 103
    NOTE: Removing the coin cell battery may reset the system board BIOS/Settings Installing the coin cell battery 1. Hold the coin cell battery with the "+" sign facing up and slide it under the securing tabs at the positive side of the connector [1]. 2. Press the battery into the connector until it
  • Dell OptiPlex 5070 | Tower Service Manual - Page 104
    from the connector on the system board [1]. b) Remove the screws that secure the fan to the heat sink [2]. NOTE: Ensure to insert the Torx screw driver from top screw hole to remove the screws. c) Lift the heatsink fan away from the computer [3]. 104 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 105
    Installing heatsink fan 1. Place the fan on the heatsink assembly [1]. 2. Tighten the screws (4) to secure the fan to the heatsink assembly [2]. 3. Connect the heatsink fan assembly cable to the connector on the system board [3]. Removing and installing components 105
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    4. Close the front panel door. 5. Install the: a) Front bezel b) Side cover 6. Follow the procedure in After working inside your computer. Heatsink assembly Removing heatsink assembly 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open
  • Dell OptiPlex 5070 | Tower Service Manual - Page 107
    Installing heatsink assembly 1. Align the screws of the heatsink assembly with the holders on the system board and place the heatsink assembly on the processor [1]. 2. Tighten the captive screws to secure the heatsink assembly to the system board [2]. NOTE: Tighten the screws in a sequential order
  • Dell OptiPlex 5070 | Tower Service Manual - Page 108
    inside your computer. 2. Remove the: a) Side cover b) Front bezel 3. Open the front panel door. 4. Remove the heatsink assembly. 5. To remove the processor: a) Release the socket lever by pushing the lever down and out from under the tab on the processor shield [1]. b) Lift the lever upward and lift
  • Dell OptiPlex 5070 | Tower Service Manual - Page 109
    CAUTION: Do not touch the processor socket pins, they are fragile and can be permanently damaged. Be careful not to bend the pins in the processor socket when removing the processor out of the socket. Installing processor 1. Place the processor on the socket such that the slots on the processor
  • Dell OptiPlex 5070 | Tower Service Manual - Page 110
    4. Install the heatsink assembly. 5. Close the front panel door. 6. Install the: a) Front bezel b) Side cover 7. Follow the procedure in After working inside your computer. System fan Removing system fan 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover b)
  • Dell OptiPlex 5070 | Tower Service Manual - Page 111
    Installing system fan 1. Insert the grommets into the slots from the back of the computer. NOTE: Install the lower two grommets first. 2. Hold the system fan with the cable facing the bottom of the computer. 3. Align the grooves of the system fan with the grommets on the chassis wall. 4. Pass the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 112
    7. Close the front panel door. 8. Install the: a) Intrusion switch b) Front bezel c) Side cover 9. Follow the procedure in After working inside your computer. Optional VGA module Removing optional VGA module 1. Follow the procedure in Before working inside your computer. 2. Remove the: a) Side cover
  • Dell OptiPlex 5070 | Tower Service Manual - Page 113
    optional VGA module 1. To remove the metal bracket as shown below, insert a flathead screwdriver in the hole of the bracket [1], push the bracket to release the bracket [2], and then lift the bracket out from the system. 2. Insert the VGA module into its slot from the inside of your computer
  • Dell OptiPlex 5070 | Tower Service Manual - Page 114
    3. Replace the two (M3X3) screws to secure the optional VGA module to the system. 4. Install the system fan . 5. Close the front panel door. 6. Install the: a) Front bezel b) Side cover 7. Follow the procedure in After working inside your computer. System board Removing system board 1. Follow the
  • Dell OptiPlex 5070 | Tower Service Manual - Page 115
    f) Memory module g) Heatsink fan 5. Disconnect the following cables: a) Intrusion switch b) Power switch 6. Disconnect the following cables from the system board: a) CPU power [1] b) Hard drive data and optical drive data [2] c) Speaker [3] d) System power [4] e) SATA [5] 7. To remove the system
  • Dell OptiPlex 5070 | Tower Service Manual - Page 116
    b) Slide and lift the system board away from the computer [1, 2]. 116 Removing and installing components
  • Dell OptiPlex 5070 | Tower Service Manual - Page 117
    Installing the system board 1. Hold the system board by its edges and align it towards the back of the computer. 2. Lower the system board into the computer 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
  • Dell OptiPlex 5070 | Tower Service Manual - Page 118
    4. Route all the cables through the routing clips. 5. Align the cables with the pins on connectors on the system board and connect the following cables to the system board: a) SATA [1] b) System power [2] c) Speaker [3] d) Hard drive data and optical drive data [4] e) CPU power [5] 118 Removing and
  • Dell OptiPlex 5070 | Tower Service Manual - Page 119
    6. Install the: a) Memory module b) M.2 SSD c) Expansion cards d) SD card reader e) Processor f) Heatsink assembly 7. Connect the following cables: a) Power switch b) Intrusion switch 8. Close the front panel door 9. Install the: a) Front bezel b) Side cover 10. Follow the procedure in After working
  • Dell OptiPlex 5070 | Tower Service Manual - Page 120
    5 Troubleshooting Enhanced successfully • View error messages that inform you of problems encountered during testing NOTE: Some tests for specific devices the computer. 2. As the computer boots, press the F12 key when the Dell logo is displayed. 3. In the boot menu screen, use Up/Down arrow key
  • Dell OptiPlex 5070 | Tower Service Manual - Page 121
    cabling Rows B, C and D of table 12.4 SIO spec [40] Bad MBD, DIMMS or CPU Rows F and K from table 12.4 of SIO spec [40] Bad coin cell - Row M of table 12.4 in SIO spec [40] System state BIOS state 1 BIOS state 2 BIOS occurred. BIOS Post code (Old LED pattern 0100) Combine PCI Troubleshooting 121
  • Dell OptiPlex 5070 | Tower Service Manual - Page 122
    BIOS Post code (Old LED pattern 1001) Fatal Motherboard error. BIOS Post code (Old LED pattern 1010 internal to the microprocessor has failed. Contact Dell The optical drive does not respond to commands initialization. Run the hard drive tests in Dell Diagnostics. The operation requires a hard drive
  • Dell OptiPlex 5070 | Tower Service Manual - Page 123
    an optical drive. 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. The hard drive does not respond to commands from the computer. Shut down the computer, remove the hard
  • Dell OptiPlex 5070 | Tower Service Manual - Page 124
    Support for instructions (click Start > Help and Support). supports the system configuration settings may require recharging. Connect your computer to an electrical outlet to charge the battery. If the problem persists, Contact Dell. TIME-OF-DAY NOT SET-PLEASE RUN THE SYSTEM SETUP The time or date
  • Dell OptiPlex 5070 | Tower Service Manual - Page 125
    operating range. Dell recommends that you back up your data regularly. A parameter out of range may or may not indicate a potential hard drive problem A chip on the system board might be malfunctioning or motherboard failure. S.M.A.R.T error, possible hard disk drive failure. Troubleshooting 125
  • Dell OptiPlex 5070 | Tower Service Manual - Page 126
    options. Availability varies by country and product, and some services may not be available in your area. To contact Dell for sales, technical support, or customer service issues: 1. Go to Dell.com/support. 2. Select your support category. 3. Verify your country or region in the Choose a Country
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OptiPlex 5070 Tower
Service Manual
Regulatory Model: D18M
Regulatory Type: D18M005