Dell Precision 7920 Rack Owner's Manual
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Dell Precision 7920 Rack Owner's Manual

Dell Precision 7920 Rack Owner's Manual

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Dell Precision 7920 Rack
Owner's Manual
Regulatory Model: E38S
Regulatory Type: E38S001
January 2023
Rev. A08

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Summary of Contents for Dell Precision 7920 Rack

  • Page 1 Dell Precision 7920 Rack Owner's Manual Regulatory Model: E38S Regulatory Type: E38S001 January 2023 Rev. A08...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018-2023 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents Chapter 1: Working on your computer................... 6 Safety instructions................................6 Before working inside your computer..........................6 After working inside your computer..........................7 Chapter 2: Chassis View........................ 8 Front chassis view................................8 Back chassis view................................9 Inside the system.................................9 LCD panel.....................................10 Viewing Home screen..............................11 Setup menu..................................
  • Page 4 Accessing system information by using QRL......................98 Quick Resource Locator for 7920R........................99 Chapter 5: Technology and components..................100 iDRAC9....................................100 iDRAC 9 - New features............................100 Dell Lifecycle Controller..............................101 Processors..................................102 Supported processors...............................102 Chipset....................................108 System memory................................109 General memory module installation guidelines....................110 Memory..................................
  • Page 5 System diagnostics................................133 Dell Embedded System Diagnostics........................133 Updating the BIOS using the USB drive in Windows....................134 Updating the BIOS in Windows............................ 134 Backup media and recovery options........................... 135 WiFi power cycle................................135 Chapter 8: Getting help and contacting Dell................136 Contents...

  • Page 6: Chapter 1: 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 7: After Working Inside Your Computer

    Steps 1. Ensure that you follow the Safety instructions. 2. Turn off the system, including any attached peripherals. 3. Disconnect the system from the electrical outlet and disconnect the peripherals. 4. If applicable, remove the system from the rack. 5. Remove the system cover. After working inside your computer About this task After you complete any replacement procedure, ensure that you connect any external devices, cards, and cables before turning...

  • Page 8: Chapter 2: Chassis View

    Chassis View Topics: • Front chassis view • Back chassis view • Inside the system • LCD panel Front chassis view 1. System Status Indicator 2. System health and system ID 3. iDRAC Quick Sync 2 wireless indicator 4. Hard drive (x8) 5.

  • Page 9: Back Chassis View

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

  • Page 10: Lcd Panel

    Error Code Lookup page at qrl.dell.com. The LCD panel is available only on the optional front bezel. The optional front bezel is hot pluggable.

  • Page 11: Viewing Home Screen

    ● When the system needs attention, the LCD backlight turns amber, and displays an error code followed by descriptive text. NOTE: If the system is connected to a power source and an error is detected, the LCD turns amber regardless of whether the system is turned on or off.

  • Page 12: View Menu

    Option Description iDRAC Select DHCP or Static IP to configure the network mode. If Static IP is selected, the available fields are IP, Subnet (Sub), and Gateway (Gtw). Select Setup DNS to enable DNS and to view domain addresses. Two separate DNS entries are available. Set error Select SEL to view LCD error messages in a format that matches the IPMI description in the SEL.

  • Page 13: Chapter 3: Product Overview

    Product Overview The following pages contain information about Dell Precision 7920 Rack product overview. Topics: • Technical specifications • System information label Technical specifications The technical and environmental specifications of your system are outlined in this section. System dimensions Table 2. Dimensions...

  • Page 14: Chassis Weight

    ● Intel Xeon Silver 42xx processors ● Intel Xeon Bronze 32xx processors ● Intel Xeon Platinum 82xx processors ● Intel Xeon Gold 62xx series processors PSU specifications The Precision 7920 Rack system supports up to two AC power supply units (PSUs). Product Overview...

  • Page 15: System Battery Specifications

    Expansion bus specifications The Precision 7920 Rack system supports up to eight PCI express (PCIe) generation 3 expansion cards, that can be installed on the system board using expansion card risers. The following table provides detailed information about the expansion card riser specifications: Table 5.

  • Page 16: Ports And Connectors Specifications

    ● Two USB 3.0-complaint ports on the back panel NIC ports The Precision 7920 Rack system supports up to four Network Interface Controller (NIC) ports on the back panel, which are available in the following configurations: ● Four RJ-45 ports that support different combinations of 1Gbps and 10Gbps ●...

  • Page 17: Video Specifications

    VGA ports The Video Graphic Array (VGA) port enables you to connect the system to a VGA display. The Precision 7920 Rack system supports two 15-pin VGA ports on the front and back panels. Serial connector The Precision 7920 Rack system supports one serial connector on the back panel, which is a 9-pin connector, Data Terminal Equipment (DTE), 16550-compliant.
  • Page 18 Table 9. Relative humidity specifications Relative humidity Specifications Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. Operating 10% to 80% relative humidity with 29°C (84.2°F) maximum dew point. Table 10. Maximum vibration specifications Maximum vibration Specifications Operating...

  • Page 19: Operating System

    <200 Å/month as defined by ANSI/ISA71.04-2013. NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity. Operating system Your Precision 7920 Rack supports the following operating systems: ● Windows 11 Pro, 64-bit ● Windows 11 Pro for Workstations, 64-bit ● Windows 10 Pro, 64-bit ●...
  • Page 20 Precision 7920 Rack – Service information Figure 4. System touchpoint, electrical overview, jumper settings and memory information Product Overview...

  • Page 21: Chapter 4: Disassembly And Reassembly

    Accessing system information by using QRL Product Positioning The Precision 7920 Rack is a general-purpose platform with highly expandable memory (up to 1536 GB), massive storage capacity and impressive I/O capability to match. The Precision 7920 Rack adds extraordinary storage capacity options, making it well-suited for data intensive applications that require greater storage, while not sacrificing I/O performance.

  • Page 22: Recommended Tools

    Recommended tools Table 16. Recommended tools and optional tools Recommended tools Optional tools ● Key to the system keylock ● Needle-nose pliers to disconnect cables and connectors in hard-to-reach locations ● #1 and #2 Phillips screwdriver ● Small flat-head screwdriver to disconnect small cables ●...
  • Page 23 ● SNMP Alert — Event can generate an SNMP trap. ● Email Alert — Event can generate an email alert. ● LC Log — Event can generate a Dell Lifecycle Controller log entry. ● LCD — Event is displayed on the system's LCD.

  • Page 24: Startup-Shutdown Sequence

    Startup-Shutdown sequence NOTE: Precision 7920 Rack BIOS is pure UEFI with a legacy compatibility layer. This layer is called the Compatibility Support Module. New POST display The following are the POST display enhancements: ● The look of the boot process has been revamped for Precision 7920 Rack.
  • Page 25 Table 18. Status LED indicators and descriptions (continued) Icon Description Condition Corrective action The POST process is interrupted without any video output due to invalid memory configurations. See the Getting help section. Drive indicator The indicator turns solid amber if ●...

  • Page 26: Hard Drive Indicator Codes

    Hard drive indicator codes Each hard drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of the hard drive. The activity LED indicator indicates whether the hard drive is currently in use or not. The status LED indicator indicates the power condition of the drive.

  • Page 27: Nic Indicator Codes

    NOTE: Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used. Table 19. Hard drive indicator codes Hard drive status indicator code Condition Flashes green twice per second Identifying drive or preparing for removal. Drive ready for removal.

  • Page 28: Idrac Direct Led Indicator Codes

    Figure 7. AC PSU status indicator 1. AC PSU status indicator/handle Table 21. AC PSU status indicator codes Power indicator codes Condition Green A valid power source is connected to the PSU and the PSU is operational. Blinking amber Indicates a problem with the PSU. Not illuminated Power is not connected to the PSU.

  • Page 29: Idrac Quick Sync 2 Indicator Codes

    If the problem persists, see the Getting help section. For more information, see Integrated Dell Remote Access Controller User's Guide at dell.com/idracmanuals or Dell OpenManage Server Administrator User’s Guide at dell.com/...

  • Page 30: Enhanced Preboot System Assessment

    Enhanced Preboot System Assessment If you experience a problem with your system, run the system diagnostics before contacting Dell for technical assistance. The purpose of running system diagnostics is to test your system hardware without requiring more equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the diagnostics results to help you solve the problem.
  • Page 31 7. Click OK when prompted, and the system reboots. Running the Embedded System Diagnostics from the Dell Lifecycle Controller To run the embedded system diagnostics from the Dell Lifecycle Controller: 1. As the system boots, press F10. Disassembly and reassembly...

  • Page 32: Jumpers And Connectors

    2. Select Hardware Diagnostics → Run Hardware Diagnostics. Jumpers and connectors System board jumpers and connectors Figure 12. System board jumpers and connectors Disassembly and reassembly...
  • Page 33 Table 24. System board jumpers and connectors Item Connector Description J_ODD Optical drive power connector A7, A1, A8, A2, A9, A3 Memory module sockets J_FAN2U_6 Cooling fan 6 connector J_BP3 Backplane 3 power connector J_FAN2U_5 Cooling fan 5 connector A6, A12, A5, A11, A4, A10 Memory module sockets J_FAN2U_4 Cooling fan 4 connector...

  • Page 34: System Board Jumper Settings

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

  • Page 35: Disassembly And Reassembly

    11. Assign a new system and/or setup password. Disassembly and reassembly The following sections contain the procedures for removing and replacing system components. Front Bezel Removing the optional front bezel Steps 1. Locate and remove the bezel key. NOTE: The bezel key is attached to the LCD bezel package. 2.

  • Page 36: System Cover

    3. Press the release button and fit the left end of the bezel onto the system. 4. Lock the bezel by using the key. System cover Removing system cover Prerequisites 1. Turn off the system, including any attached peripherals. 2. Disconnect the system from the electrical outlet and disconnect the peripherals. Steps 1.

  • Page 37: Optical Drive

    Next steps 1. Reconnect the peripherals and connect the system to the electrical outlet. 2. Turn on the system, including any attached peripherals. Optical drive Removing optical drive Prerequisites 1. If installed, remove the front bezel. 2. Remove the system cover. Steps 1.

  • Page 38: Air Shroud

    Air shroud Removing air shroud Prerequisites CAUTION: Never operate your system with the air shroud removed. The system may get overheated quickly, resulting in shutdown of the system and loss of data. 1. If installed, remove the full length PCIe cards. 2.

  • Page 39: Cooling Fan Assembly

    Cooling fan assembly Removing cooling fan assembly Steps 1. Lift the release levers to unlock the cooling fan assembly from the system. 2. Hold the release levers and lift the cooling fan assembly away of the system. Installing cooling fan assembly Steps 1.

  • Page 40: Intrusion Switch

    CAUTION: The cooling fans are hot swappable. To maintain proper cooling while the system is on, replace only one fan at a time. Steps Press the release tab and lift the cooling fan out of the cooling fan assembly. Installing cooling fan Steps 1.

  • Page 41: Hard Drive

    Installing intrusion switch Steps 1. Align the tabs on the intrusion switch with the slots on the cooling fan assembly. 2. Pull the intrusion switch up and push it until the switch locks in place. Next steps 1. Install the cooling fan assembly. Hard drive Removing hard drive blank Prerequisites...
  • Page 42 Installing hard drive blank Steps Insert the hard drive blank into the hard drive slot and push until the release button clicks into place. Next steps 1. If removed, install the front bezel. Removing hard drive Prerequisites 1. If applicable, remove the front bezel. 2.
  • Page 43 Next steps Install the hard drive. NOTE: If you are not replacing the hard drive immediately, insert a hard drive blank in the empty hard drive slot. Installing hard drive Prerequisites CAUTION: When installing a hard drive, ensure that the adjacent drives are fully installed. Inserting a hard drive carrier and attempting to lock its handle next to a partially installed carrier can damage the partially installed carrier's shield spring and make it unusable.
  • Page 44 Figure 13. Installing hard drive Next steps If applicable, install the front bezel. Removing 3.5 inch hard drive from hard drive carrier Steps 1. Using Phillips #1 screwdriver, remove the screws from the slide rails on the hard drive carrier. 2.
  • Page 45 Installing 3.5 inch hard drive into hard drive carrier Steps 1. Insert the hard drive into the hard drive carrier with the connector end of the hard drive toward the back of the carrier. 2. Align the screw holes on the hard drive with the screws holes on the hard drive carrier. When aligned correctly, the back of the hard drive is flush with the back of the hard drive carrier.
  • Page 46 Next steps Install the hard drive. NOTE: If you are not replacing the hard drive immediately, insert a hard drive blank in the empty hard drive slot. Installing 2.5 inch hard drive Prerequisites CAUTION: When installing a hard drive, ensure that the adjacent drives are fully installed. Inserting a hard drive carrier and attempting to lock its handle next to a partially installed carrier can damage the partially installed carrier's shield spring and make it unusable.
  • Page 47 Figure 14. Installing hard drive Next steps If applicable, install the front bezel. Removing 2.5 inch hard drive from 3.5 inch hard drive carrier Steps 1. Using Phillips #1 screwdriver, remove the screws from the slide rails on the 3.5 inch hard drive carrier and lift the hard drive. Disassembly and reassembly...
  • Page 48 2. Remove the screws that secures 2.5 inch hard drive to the hard drive assembly and remove the hard drive. Next steps Install hard drive into the hard drive carrier. Installing 2.5 inch hard drive into 3.5 inch hard drive carrier Steps 1.

  • Page 49: Memory Modules

    2. Place the 2.5 inch hard drive into the 3.5 inch hard drive carrier. 3. Align the screw holes on the hard drive with the screws holes on the hard drive carrier. Memory modules Removing memory modules Prerequisites 1. If applicable, remove the air shroud. WARNING: Allow the memory modules to cool after you power off the system.
  • Page 50 CAUTION: To ensure proper system cooling, memory module blanks must be installed in any memory socket that is not occupied. Remove memory module blanks only if you intend to install memory modules in those sockets. Steps 1. Locate the appropriate memory module socket. 2.

  • Page 51: Processors And Heat Sinks

    Processors and heat sinks Removing processor and heat sink module Steps 1. Using Torx #T30 screwdriver, loosen the screws. NOTE: Ensure that the screw is completely loosened before moving on to the next screw. 2. Pushing both retention clips simultaneously, lift the processor heat sink module out of the system 3.
  • Page 52 4. Lift the bracket and the processor away from the heat sink, and place the processor connector side down on the processor tray. 5. Flex the outer edges of the bracket to release the processor from the bracket. NOTE: Ensure that the processor and the bracket are placed in the tray after you remove the heat sink. Installing processor into processor heat sink module Steps 1.
  • Page 53 Figure 16. Installing the processor bracket 3. If you are using an existing heat sink, remove the thermal grease from the heat sink by using a clean lint-free cloth. 4. Use the thermal grease syringe included with your processor kit to apply the grease in a spiral quadrilateral design on the top of the processor.
  • Page 54 NOTE: ● Ensure that the two guide pin holes on the bracket match the guide holes on the heat sink. Next steps 1. Install the processor and heat sink module. 2. Install air shroud. Installing processor and heat sink module Steps 1.

  • Page 55: Expansion Card

    Figure 18. Installing the processor and heat sink module (2U) Expansion card Removing expansion card from expansion card riser Prerequisites 1. If applicable, disconnect the cables from the expansion card. Steps 1. Lift the expansion card latch out of the slot. 2.
  • Page 56 Figure 20. Removing expansion card from expansion card riser 2 Figure 21. Removing expansion card from expansion card riser 3 3. If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening and close the expansion card latch.
  • Page 57 Installing expansion card into expansion card riser Prerequisites 1. Unpack the expansion card and prepare it for installation. NOTE: For instructions, see the documentation accompanying the card. Steps 1. Lift the expansion card latch and remove the filler bracket. 2. Hold the card by its edges, and align the card edge connector with the expansion card connector on the riser. 3.
  • Page 58 About this task NOTE: If installing a replacement expansion card riser 1 make sure the VROC key is transfered from the old card to the new card. Disassembly and reassembly...
  • Page 59 Steps 1. Pull the expansion card latch out of the slot. 2. Hold the expansion card by its edges, and pull the card until the card edge connector disengages from the expansion card connector on the riser. Figure 22. Removing expansion card riser 1 Installing expansion card riser 1 About this task NOTE:...
  • Page 60 Steps 1. Align the guide rails on the riser with the standoffs on the side of the system. 2. Lower the riser into the system until the riser card connector engages with the connector on the system board. Next steps 1.
  • Page 61 Next steps 1. If removed, install expansion cards into the riser and connect any cable disconnected. 2. If applicable, install the air shroud. NOTE: If applicable, open the PCIe card holder latch on the air shroud to install the full length card. 3.
  • Page 62 Steps 1. Remove the (M2x2.5) mounting screw. 2. Insert the dell ultraspeed drive duo card into the slot and replace the SSD mounting screw. 3. Close the shroud until the latch "clicks". 4. Slide the Dell Ultraspeed Drive Duo Card into the riser slot.

  • Page 63: Vflash Card - Optional

    6. Install the: Riser 2 module System cover vFlash card – optional Removing vFlash card Prerequisites 1. If applicable, remove the full height PCIe card in expansion card riser 2. Steps 1. Locate the vFlash connector on the system board. To locate vFlash connector, see System board jumpers and connectors section.

  • Page 64: Network Daughter Card

    Installing vFlash card Steps 1. Locate the vFlash connector on the system board. To locate vFlash connector, see System board jumpers and connectors section. 2. Align the vFlash expansion card with the connector on the system board and push until it is firmly seated on the system board.

  • Page 65: Hard Drive Backplane

    Installing network daughter card Steps 1. Orient the NDC so that the Ethernet connectors fit through the slot in the back panel. 2. Align the captive screws at the back-end of the card with the screw holes on the system board. 3.

  • Page 66: Front Usb Module

    Figure 25. Removing hard drive backplane Installing hard drive backplane Steps 1. Use the hooks on the system as guides to align the hard drive backplane. 2. Lower the hard drive backplane until the release tabs snap into place. If applicable, tighten the captive screws on the backplane.

  • Page 67: Internal Usb Memory Key (Optional)

    Installing front USB module Steps 1. Place the front USB module in the slot on the system. 2. Connect and slide the USB module cable and tighten the screw. 3. Route the cable through the routing channel. Next steps 1. Install the system cover. 2.
  • Page 68 CAUTION: To ensure proper system cooling, the PSU blank must be installed in the second PSU bay in a non-redundant configuration. Remove the PSU blank only if you are installing a second PSU. Installing power supply unit blank Install the power supply unit (PSU) blank only in the second PSU bay. Steps Align the PSU blank with the PSU slot and push it into the PSU slot until it clicks into place.

  • Page 69: System Board

    Installing AC power supply unit Steps Slide the PSU into the system until the PSU is fully seated and the release latch snaps into place. Next steps 1. Connect the power cable to the PSU, and plug the cable into a power outlet. CAUTION: When connecting the power cable to the PSU, secure the cable to the PSU with the strap.
  • Page 70 Installing system board Steps 1. Unpack the new system board assembly. CAUTION: Do not lift the system board by holding a memory module, processor, or other components CAUTION: Take care not to damage the system identification button while placing the system board into the chassis.

  • Page 71: Trusted Platform Module

    Service Tag page. Other configuration issues must also be done manually, for instance importing iDRAC License through iDRAC GUI 5. Import your new or existing iDRAC Enterprise license. For more information, see Integrated Dell Remote Access Controller User's Guide, at Dell.com/esmmanuals.

  • Page 72: Control Panel

    Initializing TPM for BitLocker users Steps Initialize the TPM. For more information, see https://technet.microsoft.com/library/cc753140.aspx. The TPM Status changes to Enabled, Activated. Initializing the TPM 1.2 for TXT users Steps 1. While booting your system, press F2 to enter System Setup. 2.
  • Page 73 Installing left control panel Steps 1. Route the control panel cable through the side wall of the system. 2. Align the control panel with the control panel slot on the system and attach the control panel to the system. 3. Connect the control panel cable to the system board and secure it using cable latch. 4.

  • Page 74: Gpu Host Card Installation

    Installing right control panel Steps 1. Route the control panel cable and VGA cable through the side wall of the system. 2. Align the control panel with the control panel slot on the system and attach the control panel to the system. 3.
  • Page 75 To install the alternate riser, complete the following steps: 1. Remove any existing risers and GPU power cables from the chassis in slot 3. 2. Insert and firmly press the alternate riser 3 into the appropriate slot on the motherboard until it is seated properly. Disassembly and reassembly...

  • Page 76: Teradici Tera2220 Host Cards Installation

    This section describes the installation of Teradici host cards into the system. The host cards should have the low-profile PCI card brackets installed to fit into riser 1 on the Dell Precision Rack 7910. To install the host card, complete the following steps: 1.
  • Page 77 4. Install the three Teradici host cards into their respective PCIe slots. 5. Make sure the cards are sitting flush, and press the retaining bracket and the support bracket back into place. 6. Install the host card's power button cables into the rear of the Teradici host cards. The image below shows the rear of the low-profile module and host cards Disassembly and reassembly...
  • Page 78 7. Install the low-profile module back into the chassis in slot 1. Make sure the power button cables are not pinched between the module and the chassis case. Disassembly and reassembly...
  • Page 79 8. Make sure the module is aligned correctly and press down firmly to seat it in the slot. Disassembly and reassembly...
  • Page 80 9. Remove the CPU air baffle from the chassis. 10. Route the power button cable from the closest Teradici host card as shown below, and insert the 2-pin female receptacle into P34 on the motherboard. Disassembly and reassembly...

  • Page 81: Nvidia Quadro K4200 Graphics Cards Installation

    NVIDIA Quadro K4200 Graphics Cards Installation This section describes the installation of NVIDIA graphics cards into the system. The host cards should have the low-profile PCI card brackets installed to fit into riser 1 on the Dell Precision Rack 7910. Disassembly and reassembly...
  • Page 82 To install the graphics cards, complete the following steps: 1. Install the GPU power cables into risers 2 and 3 as shown below. Disassembly and reassembly...
  • Page 83 2. Connect one of the 6-pin power connectors to the first GPU and install the GPU into the bottom slot on riser 2. 3. Connect the second 6-pin connector on the same power lead to the second card and install it into the top slot on riser 2. Disassembly and reassembly...
  • Page 84 4. Press down the PCI retention mechanism and supporting clips. 5. Connect a 6-pin connector from the power lead to the third card and install it into the top slot on riser 3. Disassembly and reassembly...
  • Page 85 6. Press down the PCI retention mechanism and supporting clips. 7. The back of the system should now look like the below diagram with slots 1-6 populated with PCI cards. Disassembly and reassembly...

  • Page 86: Cabling Teradici Host Cards To Gpus

    Cabling Teradici Host Cards to GPUs This section outlines the installation of mini-DisplayPort (mDP)-to-DisplayPort (DP) cables for the Teradici host cards into the system. Table 26. Cabling Teradici Host cards Teradici 2220 Host Card NVIDIA Quadro K4200 PCI Slot 1 PCI Slot 4 <->...
  • Page 87 2. Connect the mDP-to-DP cables from port 3 on the GPUs to port 2 on the Teradici host cards as shown below. 3. Ensure all cables are firmly seated, and tidy them up if desired. Disassembly and reassembly...

  • Page 88: Updating Bios

    4. The system is now ready for setup and configuration. Updating BIOS To update the BIOS, perform the following steps: Steps 1. Copy the BIOS update file on a USB device. 2. Plug in the USB device into any of the USB ports on your system. 3.

  • Page 89: Manually Update The Service Tag

    You can enter the service tag only when the Service Tag field is empty. Ensure that you enter the correct service tag. Once the service tag is entered, it cannot be updated or changed. 5. Click OK. Installation Installing the Precision 7920 Rack requires information about the following topics: ● Rack Rails ● System Initialization ● Basic Configuration Rack Rails The rail offerings consist of two types of rails —...
  • Page 90 One key factor in selecting the proper rails is identifying the type of rack in which they will be installed. Both the sliding rails and the static rails support tool-less mounting in 19”wide, EIA-310-E-compliant square hole and unthreaded round hole 4-post racks. Both also support tooled mounting in threaded hole 4-post racks, but only the static rails, as the more universal solution, support mounting in 2-post (Telco) racks.
  • Page 91 the CMA represents the minimum depth of the rail with the outer CMA brackets removed (if applicable) as measured from the front mounting flanges of the rack. Cable management arm (CMA) The optional cable management arm (CMA) organizes and secures the cords and cables exiting the back of the systems. It unfolds to allow the systems to extend out of the rack without having to detach the cables.
  • Page 92 Figure 27. Pull out inner rail 2. Locate the rear rail standoff on each side of the system and lower them into the rear J-slots on the slide assemblies. 3. Rotate the system downward until all the rail standoffs are seated in the J-slots. Figure 28.
  • Page 93 Figure 29. Slide system into the rack Installing the system into the rack (option B: Stab-In) The static rails are a "stab-in" design. This means that the inner (chassis) rail members must first be attached to the sides of the system and then inserted into the outer (cabinet) members installed in the rack.
  • Page 94 Figure 30. Pull out the intermediate rail Table 29. Rail component Rail component Intermediate rail Inner rail 3. Attach the inner rails to the sides of the system by aligning the J-slots on the rail with the standoffs on the system and sliding forward on the system until they lock into place.
  • Page 95 Figure 31. Attach the inner rails to the system 4. With the intermediate rails extended, install the system into the extended rails. Disassembly and reassembly...
  • Page 96 Figure 32. Install system into the extended rails 5. Pull the blue slide release lock tabs forward on both the rails ,and slide the system into the rack. Figure 33. Slide system into the rack Disassembly and reassembly...

  • Page 97: Initialization

    ● Power on the attached peripherals. Methods of setting up and configuring the iDRAC IP address You can set up the Integrated Dell Remote Access Controller (iDRAC) IP address by using one of the following interfaces: 1. iDRAC Settings utility 2.

  • Page 98: Basic Configuration

    If you do not have the service tag, select Automatically detect my Service Tag for me to allow the system to automatically detect your service tag, or select Choose from a list of all Dell products to select your product from the Product Selection page.

  • Page 99: Quick Resource Locator For 7920R

    Steps 1. Go to Dell.com/QRL and navigate to your specific product or 2. Use your smartphone or tablet to scan the model-specific Quick Resource (QR) code on your Dell system or in the Quick Resource Locator section. Quick Resource Locator for 7920R...

  • Page 100: Chapter 5: Technology And Components

    The Integrated Dell Remote Access Controller (iDRAC) is designed to make system administrators more productive and improve the overall availability of Dell system. iDRAC alerts administrators to system issues, helps them perform remote system management, and reduces the need for physical access to the system.

  • Page 101: Dell Lifecycle Controller

    ● iDRAC Direct USB on the front of the system is now a Micro B slot, and is hard wired to iDRAC only for increased security. ● Added new System Lockdown feature to restrict use of Dell tools to make changes to BIOS, iDRAC, firmware, etc.

  • Page 102: Processors

    Processors The Precision 7920 Rack systems feature the Intel Xeon scalable processor family(Skylake-SP) offers versatility across diverse workloads. These processors are designed for next-generation data centers running on, software defined infrastructure supercharged for efficiency, performance, and agile services delivery across cloud-native and traditional applications. The Intel Xeon scalable processor family support workloads for cloud, high-performance computing, networking, and also storage for data centers.
  • Page 103 Table 30. Supported Processors for Precision 7920 Rack (continued) Model Intel Dell DPN Speed(G Cache(M QPI(GT/ Cores Turbo type Memor Speed( MT/s) Intel 3104 Bronze JNFW5 19.25 2133 No Turbo Xeon Scalable Processo Intel 6148 Gold MXCY0 27.5 10.4 2400...
  • Page 104 Table 30. Supported Processors for Precision 7920 Rack (continued) Model Intel Dell DPN Speed(G Cache(M QPI(GT/ Cores Turbo type Memor Speed( MT/s) Intel 5122 Gold 6JMR6 16.5 10.4 2400 Turbo 105W Xeon Scalable Processo Intel 6152 Gold Y1HH1 30.25 10.4...
  • Page 105 Table 30. Supported Processors for Precision 7920 Rack (continued) Model Intel Dell DPN Speed(G Cache(M QPI(GT/ Cores Turbo type Memor Speed( MT/s) Intel 8156 Platinum HV7Y2 16.5 10.4 2666 Turbo 105W Xeon Scalable Processo Intel 8176 Platinum 35TP4 10.4 2666...
  • Page 106 Table 30. Supported Processors for Precision 7920 Rack (continued) Model Intel Dell DPN Speed(G Cache(M QPI(GT/ Cores Turbo type Memor Speed( MT/s) Intel 3204 Gold MTH64 8.25 2133 No Turbo Xeon processo Intel 4208 Silver G1M20 2.10 2400 Turbo Xeon...
  • Page 107 Table 30. Supported Processors for Precision 7920 Rack (continued) Model Intel Dell DPN Speed(G Cache(M QPI(GT/ Cores Turbo type Memor Speed( MT/s) processo Intel 6230 Gold 95XN2 27.5 10.4 2933 Turbo 125W Xeon processo Intel 6240 Gold T5T3W 2.16 24.75 10.4...

  • Page 108: Chipset

    Single CPU Configuration The Precision 7920 Rack will function normally if there is just a single processor placed in the CPU1 socket . However, CPU and memory blank associated with CPU2 are required to be populated for thermal reasons. The system will not boot if only CPU2 socket is populated.

  • Page 109: System Memory

    ● PCI Express* Base Specification Revision 3.0 ● Integrated Serial ATA host controller, supports data transfer rates of up to 6 Gb/s on all ports. ● xHCI USB controller with SuperSpeed USB 3.0 ports ● Direct Media Interface ● Serial Peripheral Interface ●...

  • Page 110: General Memory Module Installation Guidelines

    Memory The Precision 7920 Rack supports up to 24 DIMMs, with up to 1536GB of memory and speeds of up to 2666MT/s. The Precision 7920 Rack supports registered (RDIMMs) and load reduced DIMMs (LRDIMMs) which use a buffer to reduce memory loading and provide greater density, allowing for the maximum platform memory capacity.

  • Page 111: Lcd Panel

    Memory Speed The Precision 7920 Rack supports memory speeds of 2666 MT/s, 2400 MT/s, and 2133 MT/s depending on the DIMM types installed and the configuration. All memory on all processors and channels run at the same speed and voltage. By default, this speed will be the highest speed supported by the CPU and the DIMMs.

  • Page 112: Viewing Home Screen

    Table 36. LCD panel features Item Button or Description display Left Moves the cursor back in one-step increments. Select Selects the menu item highlighted by the cursor. Right Moves the cursor forward in one-step increments. During message scrolling: ● Press and hold the right button to increase scrolling speed. ●...

  • Page 113: Expansion Cards And Expansion Card Risers

    Option Description iDRAC IP Displays the IPv4 or IPv6 addresses for iDRAC9. Addresses include DNS (Primary and Secondary), Gateway, IP, and Subnet (IPv6 does not have Subnet). Displays the MAC addresses for iDRAC, iSCSI, or Network devices. Name Displays the name of the Host, Model, or User String for the system. Number Displays the Asset tag or the Service tag for the system.

  • Page 114: Storage

    8. No Teradici P25 or P45 in slot 3 Storage The Precision 7920 Rack provide scalable storage that allows you to adapt to your workload and operational demands. The Precision 7920 Rack offers storage expansion with the front hard drive cage.

  • Page 115: Power Supply Units

    The Precision 7920 Rack system supports SAS, SATA. Supported Drives Table 39. Supported Drives - SAS and SATA Form Type Rotational Capacities Factor Speed 2.5" SATA, 256GB, 512GB, 480GB, 960GB SATA 7.2K 500GB, 1TB, 2TB SAS,SS 12Gb N/A 400GB, 800GB 12Gb 10K 1.8TB...

  • Page 116: Trusted Platform Module

    NOTE: In a scenario where both the control panel and system board are dispatched, Dell recommends you to replace the control panel first and try to turn on the system to complete the Easy Restore process (Service Tag, licenses, copy to the new control panel).

  • Page 117: Chapter 6: Bios And Uefi

    System Setup By using the System Setup screen, you can configure the BIOS settings, iDRAC settings, and device settings of your system. These settings have already been preconfigured per solution requirements. Contact Dell before you change these settings. NOTE: Help text for the selected field is displayed in the graphical browser by default. To view the help text in the text browser, press F1.

  • Page 118: System Setup Main Menu

    The iDRAC Settings utility is an interface to set up and configure the iDRAC parameters using UEFI. You can enable or disable various iDRAC parameters by using the iDRAC Settings utility. For more information about this utility, see the Integrated Dell Remote Access Controller User’s Guide at dell.com/ esmmanuals.

  • Page 119: System Information Screen Details

    System information screen details You can use the System Information screen allows to view system properties such as Service Tag, system model, and BIOS version. About this task You can view the System Information screen by clicking System Setup Main Menu > System BIOS > System Information.

  • Page 120: Processor Settings Screen Details

    NOTE: The Dell Fault Resilient Mode establishes an area of memory that is fault resilient. This mode can be used by an operating system that supports the feature to load critical applications or enables the operating system kernel to maximize system availability.

  • Page 121: Sata Settings Screen Details

    Menu Item Description Dell Controlled NOTE: Depending on the number of installed CPUs, there may be up to four processor listings. Turbo Controls the turbo engagement. Enable this option only when System Profile is set to Performance. Number of Cores Controls the number of enabled cores in each processor.
  • Page 122 Menu Item Description Drive Type Displays the type of drive attached to the SATA port. Capacity Displays the total capacity of the hard drive. The field is undefined for removable media devices such as optical drives. Port C Sets the drive type of the selected device. Model Displays the drive model of the selected device.

  • Page 123: Boot Settings Screen Details

    Menu Item Description Drive Type Displays the type of drive attached to the SATA port. Capacity Displays the total capacity of the hard drive. The field is undefined for removable media devices such as optical drives. Capacity Displays the total capacity of the hard drive. The field is undefined for removable media devices such as optical drives.

  • Page 124: Network Settings Screen Details

    Menu Item Description Boot option This field enables or disables the boot option in UEFI Boot Sequence. Enable/Disable Network settings screen details You can use the Network Settings screen to set the Boot mode from UEFI. It also allows you to specify the boot order. About this task You can view the Network Settings screen by clicking System Setup Main Menu >...

  • Page 125: Integrated Devices Screen Details

    Integrated devices screen details You can use the Integrated Devices screen to view and configure the settings of all integrated devices including the video controller, integrated RAID controller, and the USB ports. About this task You can view the Integrated Devices screen by clicking System Setup Main Menu > System BIOS > Integrated Devices. The Integrated Devices screen details are explained below.
  • Page 126 Menu Item Description Slot Disablement Enables or disables the available PCIe slots on your system. The Slot Disablement feature controls the configuration of PCIe cards installed in the specified slot. Slot disablement must be used only when the installed peripheral card is preventing booting into the operating system or causing delays in system startup.

  • Page 127: Serial Communication Screen Details

    Serial Communication screen details You can use the Serial Communication screen to view the properties of the serial communication port. About this task You can view the Serial Communication screen by clicking System Setup Main Menu > System BIOS > Serial Communication.

  • Page 128: System Security Settings Screen Details

    Menu Item Description Energy Efficient Enables or disables the Energy Efficient Turbo. Turbo Energy Efficient Turbo (EET) is a mode of operation where a processor’s core frequency is adjusted within the turbo range based on workload. Enables or disables the processor to switch to a minimum performance state when it is idle. By default, the C1E option is set to Disabled.
  • Page 129 The System Security Settings screen details are explained as follows: Menu Item Description Intel AES-NI Improves the speed of applications by performing encryption and decryption using the Advanced Encryption Standard Instruction Set and is set to Enabled by default. System Sets the system password.

  • Page 130: Miscellaneous Settings Screen Details

    Selecting Enabled in the operating system does not support UEFI video output standards. This field is only for UEFI boot mode. You cannot set this to Enabled if UEFI Secure Boot mode is enabled. Dell Wyse This option is enabled by default. P25BIOS Access Power Cycle Specifies how the system reacts when system transitions to S5 state and is set to None.

  • Page 131: Updating The Bios In Linux And Ubuntu

    Steps 1. Go to www.dell.com/support. 2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You can also use the product ID or manually browse for your computer model.
  • Page 132 One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.

  • Page 133: Chapter 7: Troubleshooting Your System

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

  • Page 134: Updating The Bios Using The Usb Drive In Windows

    The ePSA Pre-boot System Assessment window is displayed, listing all devices detected in the system. The diagnostics starts executing the tests on all the detected devices. Results Running the Embedded System Diagnostics from the Dell Lifecycle Controller Steps 1. As the system boots, press F10.

  • Page 135: Backup Media And Recovery Options

    Backup media and recovery options It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes multiple options for recovering Windows operating system on your Dell PC. For more information. see...

  • Page 136: Chapter 8: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 41. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips...

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