Dell Precision 3930 Rack Service Manual
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Dell Precision 3930 Rack Service Manual

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Dell Precision 3930 Rack
Service Manual
Regulatory Model: D02R
Regulatory Type: D02R001

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Summary of Contents for Dell Precision 3930 Rack

  • Page 1 Dell Precision 3930 Rack Service Manual Regulatory Model: D02R Regulatory Type: D02R001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents 1 Working on your computer..........................5 Safety instructions................................5 Before working inside your computer........................5 Safety precautions............................... 6 Electrostatic discharge—ESD protection......................... 6 ESD field service kit ..............................7 Transporting sensitive components........................... 8 After working inside your computer...........................8 2 Technology and components......................... 9 USB features..................................
  • Page 4 System board................................70 4 Troubleshooting............................75 Enhanced Pre-Boot System Assessment — ePSA diagnostics................75 Running the ePSA Diagnostics..........................75 Diagnostics..................................75 PSU LED indicator................................77 Diagnostic error messages.............................. 77 System error messages..............................80 5 Getting help..............................82 Contacting Dell................................. 82 Contents...

  • Page 5: Working On Your Computer

    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 6: Safety Precautions

    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 For this reason, some previously approved methods of handling parts are no longer applicable.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 7: Esd Field Service Kit

    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 8: Transporting Sensitive Components

    Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds.

  • Page 9: Technology And Components

    Technology and components USB features Universal Serial Bus, or USB, was introduced in 1996. It dramatically simplified the connection between host computers and peripheral devices like mice, keyboards, external drivers, and printers. Let's take a quick look on the USB evolution referencing to the table below. Table 1.

  • Page 10: Applications

    • An additional physical bus that is added in parallel with the existing USB 2.0 bus (refer to the picture below). • USB 2.0 previously had four wires (power, ground, and a pair for differential data); USB 3.0/USB 3.1 Gen 1 adds four more for two pairs of differential signals (receive and transmit) for a combined total of eight connections in the connectors and cabling.

  • Page 11: Ddr4

    the new protocol, the connector itself remains the same rectangular shape with the four USB 2.0 contacts in the exact same location as before. Five new connections to carry receive and transmitted data independently are present on USB 3.0/USB 3.1 Gen 1 cables and only come into contact when connected to a proper SuperSpeed USB connection.

  • Page 12: Memory Errors

    Figure 3. Curved edge Memory Errors Memory errors on the system display the new ON-FLASH-FLASH or ON-FLASH-ON failure code. If all memory fails, the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory connectors on the bottom of the system or under the keyboard, as in some portable systems.
  • Page 13 Type UMA Graphics Intel Core i5-8600 Processor (6 Core, 9 MB Cache, 3.1 GHz up to Integrated Intel UHD 630 4.3 GHz Turbo) Intel Core i5-8600K Processor (6 Core, 9 MB Cache, 3.6 GHz up to Integrated Intel UHD 630 4.3 GHz Turbo) Intel Core i7-8700 Processor (6 Core, 12 MB Cache, 3.2 GHz up to Integrated Intel UHD 630...

  • Page 14: Removing And Installing Components

    Removing and installing components Recommended tools The procedures in this document require the following tools: • Phillips #1 screwdriver • Philips #2 screwdriver • 5.5mm Socket wrench • Plastic scribe Screw size list Table 3. Screw size list Component #6.32x6 M3x4 M2x3.5 #6.32x5...

  • Page 15: System Board Layout

    System board layout Memory Slots Front panel HSD Left SATA power connector Coin cell battery Power distribution board power connector SATA 0 connector SATA 1 connector Power connector 1 USB Type-A 3.1 Gen1 Power distribution board connector Front panel connector Intrusion switch connector M.2 PCIe connector (SSD0) PCIe slot...
  • Page 16 NOTE: System will sound an alarm for 4 seconds and shut down if top cover is removed while the system is running. The system will not power on if the top cover is removed. To remove the cover: Rotate lock on latch with a Phillips screw driver to release the lock [1]. b Pull the latch to release the top cover [2].

  • Page 17: Ear Assembly

    Using a Philips screwdriver, rotate the latch release lock clockwise to the locked position [3]. Follow the procedure in After working inside your computer Ear assembly Removing the left ear assembly Follow the procedure in Before working inside your computer. To remove the left ear assembly Remove three (M3x4) that secure the left ear assembly [1].
  • Page 18 Installing left ear assembly To install the left ear assembly Slide the ear module into the slot [1]. b Fasten the three ( M3x4) screws to secure the ear module to the system chassis [2]. Removing and installing components...
  • Page 19 Follow the procedure in After working inside your computer. Removing the right ear assembly Follow the procedure in Before working inside your computer. To remove the right ear assembly Remove three (M3x4) that secure the right ear assembly [1]. b Slide out the right ear assembly [2]. Removing and installing components...
  • Page 20 Installing right ear assembly To install the right ear assembly Slide the ear module into the slot [1]. b Fasten the three ( M3x4) screws to secure the ear module to the system chassis [2]. Removing and installing components...

  • Page 21: Air Duct

    Follow the procedure in After working inside your computer. Air duct Removing the air duct Follow the procedure in Before working inside your computer. Remove the cover. To remove the air duct: Unroute the front panel cable. Removing and installing components...
  • Page 22 Lift the air duct away from the heat sink. Installing the air duct Align the air duct over the heat sink holding the blue point and seat it in the slot. Removing and installing components...
  • Page 23 NOTE: Ensure that no cable has been trapped under the air duct on both sides during installation. Damage to the cables could occur. Route the front panel cable through the cable routing on the air duct. Install the cover. Follow the procedure in After working inside your computer.

  • Page 24: Coin Cell Battery

    Coin cell battery Removing coin cell battery Follow the procedure in Before working inside your computer. Remove the cover. To remove the coin cell battery: Using a plastic scribe press the release latch [1]. b Remove the coin cell battery from the system [2]. Installing the coin cell battery Place the coin cell battery in its slot on the system board [1].

  • Page 25: Hard Drive Assembly

    Install the cover. Follow the procedure in After working inside your computer. Hard drive assembly Removing the hard drive assembly NOTE: The front accessible hard drive assemblies are not hot pluggable. If the hard drive assembly is removed when the system is powered up data loss and system failure can occur.
  • Page 26 To remove the hard drive assembly: Push the release button on the hard drive assembly bracket [1] to open the release latch [2]. b Pull the hard drive assembly away from the system [3]. To remove the hard drive from the assembly bracket: Using Philips screwdriver, remove the screws from the slide rails on the hard drive bracket [1].
  • Page 27 Installing the hard drive assembly To install the hard drive in the assembly bracket: Align the hard drive within the drive bracket [1]. b Secure the hard drive to the drive bracket with the screws [2]. Removing and installing components...
  • Page 28 To install the hard drive: Insert the hard drive assembly into the hard drive slot [1]. b Push the release latch back into closed position to secure the hard drive in the slot [2]. Removing and installing components...
  • Page 29 NOTE: Ensure that the release latch [2], is open while inserting the had drive back into the slot. To Install the hard drive blank if slot is not occupied by a hard drive: Insert the hard drive blank into the hard drive slot and slide it in. Follow the procedure in After working inside your computer.

  • Page 30: Hard Drive Backplane

    Hard drive backplane Removing left hard drive backplane Follow the procedure in Before working inside your computer. Remove the: Top cover Air duct Hard drives To remove the left hard drive backplane: Disconnect the SATA 0 connector cable and the SATA 1 connector cable (for 2.5 inch hard drive back plane) [1]. Disconnect the SATA power cable [2].
  • Page 31 Installing the left hard drive backplane Align and place the hard drive backplane on the alignment pins provided on the hard drive cage [1]. Fasten the captive screw to secure the backplane to the hard drive cage [2]. Removing and installing components...
  • Page 32 NOTE: The hard drive back plane slots need to align with the alignment pin on the hard drive cage. Re-route the SATA power cable and the SATA connector cables through the cable retention clip [1]. Connect the SATA power cable [2], the SATA 0 connector cable [3], and SATA 1 connector cable (for 2.5 inch hard drive back plane). Removing and installing components...
  • Page 33 NOTE: The blue SATA signal cable plugs into the blue connector on the system board. The black SATA signal cable plugs into the black connector on the system board. Install the: Hard drives Air duct Top cover Follow the procedure in After working inside your computer.
  • Page 34 Loosen the one captive screw [1], lift the HDD backplane away from the system chassis [2]. Removing and installing components...
  • Page 35 Installing the right hard drive backplane Align and place the hard drive backplane on the alignment pins provided on the hard drive cage [1]. Fasten the captive screw to secure the backplane to the hard drive cage [2]. Removing and installing components...
  • Page 36 NOTE: The hard drive back plane slots need to align with the alignment pins on the hard drive cage. Re-route the SATA power cable and the SATA connector cables through the cable retention clip [1]. Connect the SATA power cable [2], the SATA 2 connector cable [3], and SATA 3 connector cable (for 2.5 inch hard drive back plane). NOTE: The blue SATA signal cable plugs into the blue connector on the system board.

  • Page 37: Memory Module

    Install the: Hard drives Air duct Top cover Follow the procedure in After working inside your computer. Memory module Removing memory module Follow the procedure in Before working inside your computer. NOTE: Allow the memory modules to cool after you power off the system. Handle the memory module by the card edges and avoid touching the components or metallic contacts on the memory module.
  • Page 38 Installing the memory module Locate the appropriate memory module connector. Align the edge connector of the memory module with the alignment key of the memory module connector, and insert the memory module in the connector [1]. NOTE: Do not apply pressure at the center of the memory module; apply pressure at both ends of the memory module evenly.

  • Page 39: Heat Sink

    Air duct Follow the procedure in After working inside your computer. Heat sink Removing heat sink Follow the procedure in Before working inside your computer. WARNING: Allow the heat sink to cool after you power off the system. Remove the: Top cover Air duct To remove the heat sink:...

  • Page 40: Processor

    b Tighten the 4 captive screws to secure the heat sink assembly to the system board. NOTE: Tighten the screws in a sequential order (1,2,3,4) as shown on the heat sink label. CAUTION: Ensure that the heat sink is held parallel to the system board to prevent damaging the components. NOTE: Ensure that the screw is tightened completely before moving on to the next screw.
  • Page 41 d Remove the thermal grease from the processor using a clean lint free cloth. Installing the processor NOTE: Insure pin 1 indicator of the processor is aligned with the pin 1 indicator on the system board. Place the processor on the socket such that the slots on the processor align with the socket keys [1]. Close the processor shield by sliding it under the retention screw [2].

  • Page 42: Intrusion Switch

    Intrusion switch Removing intrusion switch Follow the procedure in Before working inside your computer. Remove the: Top cover To remove the intrusion switch: Disconnect the intrusion switch cable from the connector on the system board [1]. b Pull the intrusion switch release tab and lift it away from the system [2]. Installing the intrusion switch NOTE: Insure the intrusion switch is completely seated and latched in place.

  • Page 43: System Fan

    Install the: Top cover Follow the procedure in After working inside your computer. System fan Removing the system fan Follow the procedure in Before working inside your computer. Remove the: Top cover Air duct (if required) To remove the system fan: Disconnect the system fan cable from the system board.
  • Page 44 Installing the system fan To replace the system fan: Align blue release pins of the fan and the slot of the fan cage. b Push down the blue release pins until it sits in the slot. Connect the system fan cable to the system board. NOTE: Fold and tuck excess fan cable in the gap on the left side of the fan.

  • Page 45: System Fan Cage

    Install the: Air duct (if removed) Top cover Follow the procedure in After working inside your computer. System fan cage Removing the system fan cage Follow the procedure in Before working inside your computer. Remove the: Top cover Air duct System fan To remove the system fan cage: Remove the two (#6-32x5) that secures the fan cage to the chassis [1].
  • Page 46 Installing the system fan cage To install the system fan cage: Lower the fan cage into the chassis aligning the retention clips into the guide slots. b Slide the fan cage to the left until the retention clips engage [1]. Fasten the two (#6-32x5) to secure the fan cage to the chassis [2].

  • Page 47: Graphics Card Fan Cage

    Install the: System fan Air duct Top cover Follow the procedure in After working inside your computer. Graphics card fan cage Removing the graphics card fan cage Follow the procedure in Before working inside your computer. Remove the: Top cover Air duct System fan To remove the graphics card fan cage:...
  • Page 48 Installing the graphics fan cage To install the graphics card fan cage: Lower the fan cage into the chassis aligning the retention clips into the guide slots [1]. b Fasten the two (#6-32x5) to secure the fan cage to the chassis [2]. Re-route the SATA power cable and the SATA connector cables through the cable retention clip on the graphics card fan cage [3].

  • Page 49: M.2 Pcie Solid State Drive -Ssd

    Install the: System fan Air duct Top cover Follow the procedure in After working inside your computer. M.2 PCIe Solid State Drive -SSD Removing the M.2 PCIe Solid State Drive -SSD Follow the procedure in Before working inside your computer. Remove the: Top cover To remove the M.2 PCIe SSD card:...
  • Page 50 Remove the thermal pad. Installing the M.2 PCIe Solid State Drive -SSD Place the thermal pad into the slot on the system board [1]. Insert the M.2 PCIe SSD card into the card slot on the system board [2]. Replace the single (M2x3.5) screw that secures the M.2 PCIe SSD card to the system board [3]. Removing and installing components...

  • Page 51: Front Input Output Panel

    Install the: Top cover Follow the procedure in After working inside your computer. Front Input Output panel Removing the front Input Output panel Follow the procedure in Before working inside your computer. Remove the: Top cover NOTE: Take a picture or document the routing of the three cables attached to the front I/O Panel. To remove the Intel front I/O panel: Press the release tabs located on the sides of the front panel cable connector and lift the cable away [1].
  • Page 52 Remove the three (#6-32x5) screws that secure the I/O panel to the system chassis [1], lift the I/O panel away from the system chassis [2] . Removing and installing components...
  • Page 53 Installing the front Input Output panel NOTE: Insure the front I/O panel is under the two guide clips (one on left side and another on the right side) or the panel will not properly rest on the screw standoffs. The front I/O panel can be damaged if not properly installed. Align the front I/O panel with the slots on the system chassis [1].

  • Page 54: Power Supply Unit - Psu

    Install the: Top cover Follow the procedure in After working inside your computer. Power supply unit - PSU Removing power supply unit Follow the procedure in Before working inside your computer. To remove the PSU: Press the release latch on the PSU [1]. b Pull the PSU out of the slot and away from the system [2].
  • Page 55 Installing the power supply unit Insert the PSU in the chassis and slide it into the slot until it locks. Removing and installing components...
  • Page 56 Follow the procedure in After working inside your computer. Installing the second redundant PSU Follow the procedure in Before working inside your computer. Remove the: Second PSU blank Top cover Second PSU fan blank Install the: Second PSU fan b Connect fan cable to power distribution board "FAN2" connector. NOTE: Refer to the System fan...

  • Page 57: Power Distribution Board

    Install the: Top cover Follow the procedure in After working inside your computer. Power distribution board Removing the power distribution board Follow the procedure in Before working inside your computer. Remove the: Top cover Power supply unit To remove the power distribution board: Press the release tabs located on the sides of the power distribution board connector and lift the cable away [1].
  • Page 58 Installing power distribution board Align the power distribution board with the slots on the system chassis [1]. Replace the three (#6.32x6) screw that secures the power distribution board to the system board [2]. Reconnect the power distribution board, power cable [3], power supply unit fan cables [4] and the power distribution board connector [5].

  • Page 59: Expansion Card

    Install the: Power supply unit Top cover Follow the procedure in After working inside your computer. Expansion card Riser 1 module Removing riser1 module Follow the procedure in Before working inside your computer. Remove the: Top cover To remove the riser1 module: Holding the two blue lift points and pull the riser1 module from the slot.
  • Page 60 Installing the riser1 module Holding the blue contact points align the module with the alignment pins on the chassis and insert the riser1 module into the slot. Install the: Top cover Follow the procedure in After working inside your computer. Removing and installing components...
  • Page 61 Removing riser1 blank Follow the procedure in Before working inside your computer. Remove the: Top cover Riser 1 module To remove the riser1 blank: Pull the release tab [1] to open the riser1 slot and lift out the riser1 blank from the slot. Installing the riser1 blank NOTE: A riser1 blank must be installed over an empty expansion card slot to maintain Federal Communications Commission...
  • Page 62 Install the: Riser 1 module Top cover Follow the procedure in After working inside your computer. Removing riser1 Graphics Card Follow the procedure in Before working inside your computer. Remove the: Top cover Riser 1 module To remove the riser1 graphics card: NOTE: If installed, disconnect graphics card power cable from graphics card.
  • Page 63 NOTE: If removing the graphics card permanently, install Riser1 blank in empty expansion slot opening. Installing the riser1 Graphics Card Insert the riser1 graphics card into the slot [1] and close the release tab to secure the riser1 graphics card in place [2]. NOTE: Ensure that the graphics card bracket is installed correctly in the slot.
  • Page 64 Removing riser1 Dual Graphics Card Follow the procedure in Before working inside your computer. Remove the: Top cover Riser 1 module To remove the riser1 Dual graphics card: Pull the release tab [1] to open the riser1 slot. b Disconnect the dual graphics card power cable [2]. Push the release tab on the PCIe slot [3], lift out the graphics card from the slot [4].
  • Page 65 Removing the riser 1 dell ultra-speed drive duo card: Pull the release tab [1] and open the riser 1 slot. b Push the release tab on the PCIe slot [2], lift out the Dell Ultra-speed Drive Duo Card from slot [3]. Removing and installing components...
  • Page 66 To remove the SSD card Press the release latch on the Dell Ultra-speed Drive Duo Card cover [1], remove the one (M3x3.5) screw [2] and take out the SSD card [3]. NOTE: If removing the Dell Ultra-speed Drive Duo Card permanently, install Riser1 blank in empty expansion slot 2 opening.
  • Page 67 Installing the riser 1 dell ultra-speed drive duo card Press the release latch on the dell ultra-speed drive duo card cover [1] and lift the cover open [2]. Remove the one (M2x2.5) screw [3]. To install the M.2 SSD Insert the SSD card into the slot on the module [1], Replace the one (M2x2.5) screw [2] that secures the SSD card and close the module cover [3].
  • Page 68 NOTE: Ensure that the Dell Ultra-speed Drive Duo Card bracket is installed correctly in the slot. Install the: Riser 1 module Top cover Follow the procedure in After working inside your computer. Removing riser 2 module Follow the procedure in Before working inside your computer.
  • Page 69 Installing the Riser 2 Module Hold the blue points on the riser 2 module, and align it with the guide pins to install. Press down the riser 2 module and make sure that it is seated in the PCIe slot. Install the: Top cover Follow the procedure in...

  • Page 70: System Board

    Installing the riser2 blank Insert the riser2 blank into the slot and close the release tab to secure the riser2 blank in place. NOTE: A riser2 blank must be installed over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system.
  • Page 71 NOTE: Take a picture or document the cable routing. Disconnect the power daughter board cable and front panel cable [1], power daughter board power cable [2], front panel HSD cable, SATA power cable, SATA 0, SATA 1 (if installed) cable [3] and unroute it from the retention clip on the system board. b Disconnect front panel power cable, GPU power cable [4] and unroute it from the retention clip on the system board.
  • Page 72 Installing the system board Hold the system board by its edges, and align it towards the back of the system. Lower the system board into the system chassis until the connectors at the back of the system board align with the slots on the chassis rear wall.
  • Page 73 Align the cables with the pins on connectors on the system board and connect power daughter board cable and front panel cable [1], power daughter board power cable [2], front panel HSD cable, SATA power cable, SATA 0, SATA 1 (if disconnected) cable [3]. Reconnect the front panel power cable, GPU power cable [4].
  • Page 74 Install the: Riser 1 module Riser 2 module Intrusion switch M.2 PCIe Solid State Drive - SSD (if removed) Processor Heat sink Memory module System fan cage System fan Air duct Top cover Follow the procedure in After working inside your computer.

  • Page 75: Troubleshooting

    The items detected are listed and will be tested If there are any issues, error codes are displayed. Note the error code and validation number and contact Dell. To run a diagnostic test on a specific device Press Esc and click Yes to stop the diagnostic test.
  • Page 76 However, if the computer fails the POST, the computer emits a series of LED codes during the start-up. The system LED is integrated on the Power button. The following table shows different light patterns and what they indicate. Table 4. States Under Host BIOS Control Amber LED state Fault Description Faults Recommendation for Tech Support...

  • Page 77: Psu Led Indicator

    DECREASING AVAILABLE MEMORY One or more memory modules may be faulty or improperly seated. Reinstall the memory modules or, if necessary, replace them. DISK C: FAILED INITIALIZATION The hard drive failed initialization. Run the hard drive tests in Dell Diagnostics. Troubleshooting...
  • Page 78 Shut down the computer, remove the hard drive, and boot the computer from 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. HARD-DISK DRIVE FAILURE The hard drive does not respond to commands from the computer.
  • Page 79 KEYBOARD STUCK KEY FAILURE For external keyboards or keypads, check the cable connection. Restart the computer, and avoid touching the keyboard or keys during the boot routine. Run the Stuck Key test in Dell Diagnostics. LICENSED CONTENT IS NOT ACCESSIBLE IN...

  • Page 80: System Error Messages

    The reserve battery that 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 stored in the system setup program does not PROGRAM match the system clock.
  • Page 81 System message Description out of range may or may not indicate a potential hard drive problem Troubleshooting...

  • Page 82: Getting Help

    Dell product catalog. Dell provides several online and telephone-based support and service 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: Go to Dell.com/support.

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