Lenovo 7X18 Maintenance Manual
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Lenovo 7X18 Maintenance Manual

Lenovo 7X18 Maintenance Manual

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ThinkSystem SR850
Maintenance Manual
Machine Types: 7X18 and 7X19

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Summary of Contents for Lenovo 7X18

  • Page 1 ThinkSystem SR850 Maintenance Manual Machine Types: 7X18 and 7X19...
  • Page 2 In addition, be sure that you are familiar with the terms and conditions of the Lenovo warranty for your server, which can be found at: http://datacentersupport.lenovo.com/warrantylookup Twenty-ninth Edition (November 2022) ©...

  • Page 3: Table Of Contents

    Install the CMOS battery (CR2032) ..Remove the security bezel ..124 Fan and fan cage replacement ..© Copyright Lenovo 2017, 2022...
  • Page 4 Install the security bezel ..125 Intermittent problems ... 159 System board air baffle and the power interposer Keyboard, mouse, KVM switch or USB-device replacement .

  • Page 5: Safety

    Vor der Installation dieses Produkts die Sicherheitshinweise lesen. Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza. Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet. Antes de instalar este produto, leia as Informações sobre Segurança. © Copyright Lenovo 2017, 2022...

  • Page 6: Safety Inspection Checklist

    1 & IEC 60950-1, the standard for Safety of Electronic Equipment within the Field of Audio/Video, Information Technology and Communication Technology. Lenovo assumes you are qualified in the servicing of equipment and trained in recognizing hazards energy levels in products. Access to the equipment is by the use of a tool, lock and key, or other means of security, and is controlled by the authority responsible for the location.
  • Page 7 Click Power ➙ Power Cables to see all line cords. • Make sure that the insulation is not frayed or worn. 3. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations.
  • Page 8 ThinkSystem SR850 Maintenance Manual...

  • Page 9: Chapter 1. Introduction

    Specifications The following information is a summary of the features and specifications of the server. Depending on the model, some features might not be available, or some specifications might not apply. Table 1. Specifications, Type 7X18 and 7X19 Specification Description...
  • Page 10 Table 1. Specifications, Type 7X18 and 7X19 (continued) Processor (depending on Supports multi-core Intel Xeon processors, with integrated memory controller and Intel model) Ultra Path Interconnect (UPI) architecture. • Two processor sockets (expandable up to four) with minimal requirement of two installed on the system board.
  • Page 11 • Slot 10: PCI Express 3.0 x8 (supports RAID adapters for SATA/SAS drives) • Slot 11: PCI Express 3.0 x16 (supports PCIe switch card) Integrated functions • Lenovo XClarity Controller (XCC), which provides service processor control and monitoring functions, video controller, and remote keyboard, video, mouse, and remote drive capabilities.
  • Page 12 Table 1. Specifications, Type 7X18 and 7X19 (continued) Electrical input This server comes with three types of power supply units: • 750-watt platinum power supply – Input power 115V or 220V ac • 1100-watt platinum power supply – Input power 115V or 220V ac •...

  • Page 13: Particulate Contamination

    Table 1. Specifications, Type 7X18 and 7X19 (continued) Environment ThinkSystem SR850 complies with ASHRAE Class A2 specifications. Depending on the hardware configuration, some models comply with ASHRAE Class A3 and Class A4 specifications. System performance may be impacted when operating temperature is outside ASHRAE A2 specification.

  • Page 14: Firmware Updates

    If Lenovo determines that the levels of particulates or gases in your environment have caused damage to the device, Lenovo may condition provision of repair or replacement of devices or parts on implementation of appropriate remedial measures to mitigate such environmental contamination.
  • Page 15 Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES) operating system distributions. Machine-type-specific firmware-only UXSPs are also available. Firmware updating tools See the following table to determine the best Lenovo tool to use for installing and setting up the firmware: Tool Update...
  • Page 16 2. For BMC and UEFI firmware updates. • Lenovo XClarity Provisioning Manager From Lenovo XClarity Provisioning Manager, you can update the Lenovo XClarity Controller firmware, the UEFI firmware, and the Lenovo XClarity Provisioning Manager software. Note: By default, the Lenovo XClarity Provisioning Manager Graphical User Interface is displayed when you start the server and press the key specified in the on-screen instructions.
  • Page 17 • Lenovo XClarity Controller If you need to install a specific update, you can use the Lenovo XClarity Controller interface for a specific server. Notes: – To perform an in-band update through Windows or Linux, the operating system driver must be installed and the Ethernet-over-USB (sometimes called LAN over USB) interface must be enabled.

  • Page 18: Tech Tips

    Tech Tips Lenovo continually updates the support website with the latest tips and techniques that you can use to solve issues that your server might encounter. These Tech Tips (also called retain tips or service bulletins) provide procedures to work around issues or solve problems related to the operation of your server.

  • Page 19: Power Off The Server

    Power off the server The server remains in a standby state when it is connected to a power source, allowing the Lenovo XClarity Controller to respond to remote power-on requests. To remove all power from the server (power status LED off), you must disconnect all power cables.
  • Page 20 ThinkSystem SR850 Maintenance Manual...

  • Page 21: Chapter 2. Server Components

    Use the information in this section to learn about each of the components associated with your server. Identifying your server When you contact Lenovo for help, the machine type, model, and serial number information help support technicians to identify your server and provide faster service.
  • Page 22 Identification button/LED (blue) Drive status LED (yellow) System error LED (yellow) Pull-out information tab Front operator panel with optional pull-out LCD display USB 1 (USB 2.0 with Lenovo XClarity Controller Rack release latches management) 2.5-inch drive bays USB 2 Power button/LED (green) VGA connector (optional): Connect a monitor to this connector.
  • Page 23 Controller mobile application. When a mobile device is connected to this USB port, an Ethernet over USB connection is established between the mobile application running on the device and the XClarity Controller. Select Network in BMC Configuration to view or modify USB 2.0 with Lenovo XClarity Controller management settings. Four types of settings are available: –...

  • Page 24: Front Operator Panel

    Identification button/LED (blue) Use this blue LED to visually locate the server among other servers. This LED is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this LED remotely. System error LED (yellow) When this yellow LED is lit, it indicates that a system error has occurred.
  • Page 25 Your front operator panel may come with a LCD display, which is accessible with a pull on the latch on the right of the front operator panel. Figure 6. Front operator panel and LCD display The LCD system information display panel attached to the front of the server allows quick access to system status, firmware, network, and health information.
  • Page 26 Figure 8. System information on LCD display panel Table 6. System information display panel of front operator panel System name (SR850) Checkpoint code Temperature (blinking in turns with System status Power consumption (blinking in turns with The option menu UI flow on the LCD display is illustrated as following. Figure 9.
  • Page 27 Table 7. Options available on the front operator panel Option Description System error System error provides the total number of errors the system encountered, and the description of these errors. The information is displayed as following: System Has Encountered X Errors Whereas X is the total number of system errors encountered.
  • Page 28 Table 7. Options available on the front operator panel (continued) XCC network information XCC Network information provides the following XCC related network information: • XCC hostname is displayed as following: XCC Hostname: XCC-NNNN • XCC shared or extension MAC address is displayed as following: XCC Dedicated MAC: XX:XX:XX:XX:XX:XX •...

  • Page 29: Rear View

    Table 7. Options available on the front operator panel (continued) Actions Actions provides the following available actions, which come in effect by pressing and holding on the select button for three seconds: • Restore XCC default settings is displayed as following: RESTORE XCC DEFAULTS? HOLD v FOR 3s •...
  • Page 30 Table 8. Components on the server rear view (continued) LOM adapter (slot 7) USB 4 (USB 3.0) AC power LED (green) USB 3 (USB 3.0) DC power LED (green) Serial connector Power supply error LED (yellow) VGA connector Power supply unit 2 XClarity Controller network connector Power supply unit 1 NMI button...
  • Page 31 Insert LOM adapter into this slot (see “System-board connectors” on page 25 for the location of the LOM adapter slot on the system board and “LOM adapter replacement” on page 75 for information about the installation of the LOM adapter). AC power LED: Each hot-swap power supply comes with an ac power LED and a dc power LED.
  • Page 32 Use this connector to manage the server, by using a dedicated management network. If you use this connector, the Lenovo XClarity Controller cannot be accessed directly from the production network. A dedicated management network provides additional security by physically separating the management network traffic from the production network.

  • Page 33: System-Board Connectors

    Table 9. System-board connectors PCIe slot 11, 10, 9, 8 Front operator panel connector PCIe slot 7 (LOM adapter) USB 1 (USB 2.0 with Lenovo XClarity Controller management) Backplane connector 2 PCIe slot 6 (M.2 backplane) PCIe slot 3-5 (PCIe riser-card)

  • Page 34: Switches, Jumpers, And Buttons

    Switches, jumpers, and buttons The following illustrations show the location of the switches, jumpers, and buttons on the server. Note: If there is a clear protective sticker on the top of the switch block, you must remove and discard it to access the switch.

  • Page 35: System-Board Leds

    You can also use it to force a blue-screen memory dump (use this button only when you are directed to do so by Lenovo Support). System-board LEDs Use this information to locate the system-board LEDs.

  • Page 36: Optional Processor And Memory Expansion Tray

    Figure 13. System-board LEDs Table 13. System-board LEDs System error LED (yellow) DIMM 19-24 error LED Identification LED (blue) Fan 1-6 error LED DIMM 1-6 error LED XCC heartbeat LED (Green) FPGA heartbeat LED (Green) Processor 1 LED Light path power LED DIMM 7-18 error LED Processor 2 LED Optional processor and memory expansion tray...
  • Page 37 Figure 14. Optional processor and memory expansion tray Table 14. Components on the optional processor and memory expansion tray Power supply 2 connector DIMM slot 31-42 Tray handle Processor 3 DIMM slot 43-48 DIMM slot 25-30 Processor 4 Figure 15. LEDs on the optional processor and memory expansion tray Table 15.
  • Page 38 Figure 16. Connectors on the optional processor and memory expansion tray Table 16. Connectors on the optional processor and memory expansion tray NVMe signal cable connector 0-1 NVMe signal cable connector 2-3 ThinkSystem SR850 Maintenance Manual...

  • Page 39: Pcie Riser-Cards

    PCIe riser-cards Use this information to locate the connectors on the optional PCIe riser-cards. x8/x8/x8 PCIe FH Riser Assembly Figure 17. x8/x8/x8 PCIe FH Riser Assembly Table 17. Components of x8/x8/x8 PCIe FH Riser Assembly PCIe full-height riser cage PCI Express 3.0 x8 (slot 4) PCI Express 3.0 x8 (slot 3) PCI Express 3.0 x8 (slot 5) x8/x8/x8ML2 PCIe FH Riser Assembly...

  • Page 40: 2.5-Inch Drive Backplanes

    x8/x16ML2 PCIe FH Riser Assembly Figure 19. x8/x16ML2 PCIe FH Riser Assembly Table 19. Components of x8/x16ML2 PCIe FH Riser Assembly PCIe full-height riser cage Customized slot for ML2 adapter (slot 5) PCI Express 3.0 x8 (slot 3) 2.5-inch drive backplanes Use this information to locate the connectors on the optional 2.5-inch drive backplanes.

  • Page 41: Raid Adapters

    2.5-inch AnyBay (SATA/SAS/NVMe) 8-bay backplane Figure 21. 2.5-inch AnyBay (SATA/SAS/NVMe) 8-bay backplane Table 21. Connectors on 2.5-inch AnyBay (SATA/SAS/NVMe) 8-bay backplane NVMe connector 3 SATA/SAS connector 1 NVMe connector 2 SATA/SAS connector 0 NVMe connector 1 Power/configuration cable connector NVMe connector 0 Cable numbering labels 2.5-inch AnyBay (SATA/SAS/NVMe) 8-bay backplane comes with: •...

  • Page 42: Internal Cable Routing

    Figure 23. Connectors on SATA/SAS RAID adapter (16i) Table 23. SATA/SAS RAID adapter (16i) SATA/SAS RAID adapter (16i) with four SATA/SAS connectors (C0, C1, C2, C3) Figure 24. Connectors on PCIe switch card Table 24. PCIe switch card PCIe switch card with four SATA/SAS connectors (C0, C1, C2, C3) Internal cable routing This section provides information about routing the cables when you install components in the server.
  • Page 43 – Four processors installed – “AnyBay backplane + AnyBay backplane” on page 45 – Two processors installed – Four processors installed Important: 1. Make sure all the signal cables go through the cable guides. Figure 25. Cable guide locations 2. Connect the direct NVMe signal cables to the NVMe connectors on the processor and memory expansion tray.
  • Page 44 2. Remove the system board air baffle (see “Remove the system board air baffle and the power interposer” on page 126) or the processor and memory expansion tray and the expansion tray air baffle (see “Remove the processor and memory expansion tray” on page 120).
  • Page 45 One 8-bay backplane Figure 28. Cable routing, 8-bay backplane Table 26. Cables and adapters for routing SATA/SAS RAID adapter (8i) SATA/SAS signal cables (720 mm) One AnyBay backplane Two processors installed Chapter 2 Server components...
  • Page 46 Figure 29. Cable routing, AnyBay backplane with two processors installed Table 27. Cables and adapters for routing PCIe switch card NVMe signal cables for PCIe switch card SATA/SAS RAID adapter (8i) SATA/SAS signal cables (720 mm) Four processors installed Note: Install the processor and memory expansion tray before connecting the signal cables to NVMe connectors on the expansion tray (see “Install the processor and memory expansion tray”...
  • Page 47 Figure 30. Cable routing, AnyBay backplane Table 28. Cables and adapters for routing Direct NVMe signal cables for processor and memory SATA/SAS RAID adapter (8i) expansion tray NVMe connectors on the processor and memory SATA/SAS signal cables (720 mm) expansion tray Chapter 2 Server components...
  • Page 48 Connecting signal cables to two backplanes When two backplanes are installed, see the following illustrations for cable routing. 8-bay backplane + 8-bay backplane Two options are available for this combination: 1. With SATA/SAS RAID adapter (16i) Figure 31. Cable routing, 8-bay backplane + 8-bay backplane Table 29.
  • Page 49 2. With SATA/SAS RAID adapter (8i) Figure 32. Cable routing, 8-bay backplane + 8-bay backplane Table 30. Cables and adapters for routing SATA/SAS RAID adapter (8i) SATA/SAS signal cables (720 mm) SATA/SAS RAID adapter (8i) SATA/SAS signal cables (720 mm) 8-bay backplane + AnyBay backplane Notes: •...
  • Page 50 Figure 33. Cable routing, 8-bay backplane + AnyBay backplane Table 31. Cables and adapters for routing SATA/SAS RAID adapter (16i) SATA/SAS signal cables (720 mm) PCIe switch card SATA/SAS signal cables (900 mm) NVMe signal cables for PCIe switch card ThinkSystem SR850 Maintenance Manual...
  • Page 51 2. With two SATA/SAS RAID adapters (8i) Figure 34. Cable routing, 8-bay backplane + AnyBay backplane Table 32. Cables and adapters for routing SATA/SAS RAID adapter (8i) SATA/SAS signal cables (720 mm) SATA/SAS RAID adapter (8i) NVMe signal cables for PCIe switch card PCIe switch card SATA/SAS signal cables (720 mm) Chapter 2...
  • Page 52 Four processors installed Two options are available for this combination: 1. With SATA/SAS RAID adapter (16i) Figure 35. Cable routing, 8-bay backplane + AnyBay backplane Table 33. Cables and adapters for routing SATA/SAS RAID adapter (16i) SATA/SAS signal cables (720 mm) NVMe connectors on the processor and memory SATA/SAS signal cables (900 mm) expansion tray...
  • Page 53 2. With SATA/SAS RAID adapter (8i) Figure 36. Cable routing, 8-bay backplane + AnyBay backplane Table 34. Cables and adapters for routing SATA/SAS RAID adapter (8i) Direct NVMe signal cables for processor and memory expansion tray NVMe connectors on the processor and memory SATA/SAS signal cables (720 mm) expansion tray SATA/SAS RAID adapter (8i)
  • Page 54 Figure 37. Cable routing, AnyBay backplane + AnyBay backplane Table 35. Cables and adapters for routing PCIe switch card NVMe signal cables for PCIe switch card SATA/SAS RAID adapter (16i) NVMe signal cables for PCIe switch card PCIe switch card SATA/SAS signal cables (720 mm) SATA/SAS signal cables (900 mm) 2.
  • Page 55 Figure 38. Cable routing, AnyBay backplane + AnyBay backplane Table 36. Cables and adapters for routing PCIe switch card SATA/SAS signal cables (720 mm) SATA/SAS RAID adapter (8i) NVMe signal cables for PCIe switch card SATA/SAS RAID adapter (8i) NVMe signal cables for PCIe switch card PCIe switch card SATA/SAS signal cables (720 mm) Chapter 2...
  • Page 56 Four processors installed Two options are available for this combination: Note: Install the processor and memory expansion tray before connecting the signal cables to NVMe connectors on the expansion tray (see “Install the processor and memory expansion tray” on page 122).

  • Page 57: Parts List

    1. Go to and navigate to the support page for your server. http://datacentersupport.lenovo.com 2. Click Parts & Accessories ➙ Parts Lookup. 3. Enter either the serial number or the machine type model for your server to see the parts for your server.
  • Page 58 Figure 41. Server components The parts listed in the following table are identified as one of the following: ThinkSystem SR850 Maintenance Manual...
  • Page 59 Tier 1 CRU at your request with no service agreement, you will be charged for the installation. • Tier 2 customer replaceable unit (CRU): You may install a Tier 2 CRU yourself or request Lenovo to install it, at no additional charge, under the type of warranty service that is designated for your server.
  • Page 60 Table 39. Parts listing (continued) Index Description Tier 1 CRU Tier 2 CRU Consuma- ble and Structural part Security bezel √ Front VGA assembly √ Memory module √ DC Persistent Memory (DCPMM) √ Processor √ Heatsink √ 2.5-inch SATA/SAS 8-bay backplane √...

  • Page 61: Power Cords

    Several power cords are available, depending on the country and region where the server is installed. To view the power cords that are available for the server: 1. Go to: http://dcsc.lenovo.com/#/ 2. Click Preconfigured Model or Configure to order. 3. Enter the machine type and model for your server to display the configurator page.
  • Page 62 ThinkSystem SR850 Maintenance Manual...

  • Page 63: Chapter 3. Hardware Replacement Procedures

    – Make sure that you can stand steadily without slipping. – Distribute the weight of the object equally between your feet. – Use a slow lifting force. Never move suddenly or twist when you lift a heavy object. © Copyright Lenovo 2017, 2022...

  • Page 64: System Reliability Guidelines

    – To avoid straining the muscles in your back, lift by standing or by pushing up with your leg muscles. • Make sure that you have an adequate number of properly grounded electrical outlets for the server, monitor, and other devices. •...

  • Page 65: Working Inside The Server With The Power On

    • When more than one processor is installed, fan population rules for each server must be strictly followed. Working inside the server with the power on You might need to keep the power on with the server cover removed to look at system information on the display panel or to replace hot-swap components.

  • Page 66: Inch Hot-Swap Drive And Drive Backplane

    • Keep the device from others’ reach to prevent possible damages. 2.5-inch hot-swap drive and drive backplane replacement Use this procedure to install or remove 2.5-inch hot-swap drives and drive backplanes. Remove a drive backplane Use this procedure to remove a drive backplane. Before removing the drive backplane: 1.

  • Page 67: Install A Drive Backplane

    Install a drive backplane Use this procedure to install a drive backplane. Before installing a drive backplane: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server;...

  • Page 68: Install A 2.5-Inch Hot-Swap Drive

    • NVMe solid-state drive • SATA/SAS solid-state drive • SATA/SAS hard-disk drive For a complete list of supported optional device for this server, see https://static.lenovo.com/us/en/ serverproven/index.shtml Before installing a 2.5-inch hot-swap drive: 1. Read the safety information and installation guidelines (see “Safety”...

  • Page 69: Cmos Battery (Cr2032) Replacement

    The following notes describe information that you must consider when replacing the battery: • Lenovo has designed this product with your safety in mind. The lithium battery must be handled correctly to avoid possible danger. If you replace the battery, you must adhere to the following instructions.
  • Page 70 S004 CAUTION: When replacing the lithium battery, use only Lenovo specified part number or an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.
  • Page 71 Figure 46. CMOS battery location on the system board Table 40. CMOS battery CMOS battery (CR2032) To remove the CMOS battery, complete the following steps: Step 1. Gently push on one side of the battery until it leaves the seat. Figure 47.

  • Page 72: Install The Cmos Battery (Cr2032)

    S004 CAUTION: When replacing the lithium battery, use only Lenovo specified part number or an equivalent type battery recommended by the manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.

  • Page 73: Fan And Fan Cage Replacement

    Before installing the CMOS battery: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface. To install the CMOS battery, complete the following steps: Step 1.
  • Page 74 CAUTION: The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

  • Page 75: Install The Fan Cage Assembly

    If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Demo video Watch the procedure on YouTube Install the fan cage assembly Use this procedure to install the fan cage assembly. Before installing the fan cage assembly: 1.

  • Page 76: Remove A Hot-Swap Fan

    Watch the procedure on YouTube Remove a hot-swap fan Use this procedure to remove a hot-swap fan. S017 CAUTION: Hazardous moving fan blades nearby. Keep fingers and other body parts away. S033 CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in spattered metal, burns, or both.

  • Page 77: Install A Hot-Swap Fan

    Figure 51. Hot-swap fan removal Attention: When replacing a fan with power on, complete the replacement within 30 seconds to ensure proper operation. Step 2. Lift the fan out from the fan cage. If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

  • Page 78: Front Vga Assembly Replacement

    Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in spattered metal, burns, or both. The server comes with six speed-controlled hot-swap cooling fans. Before installing a hot-swap fan: 1. Read the safety information and installation guidelines (see “Safety”...

  • Page 79: Remove The Front Vga Assembly

    Remove the front VGA assembly Use this procedure to remove the front VGA assembly. Before removing the front VGA assembly: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2. Turn off the server and peripheral devices and disconnect the power cords and all external cables (see “Power off the server”...
  • Page 80 Figure 54. Front VGA assembly removal Step 4. Tilt the cable cover and remove it from the server. Figure 55. Front VGA assembly removal Step 5. Grasp the front VGA assembly, and pull it slightly forward the front of the server to remove it. Figure 56.

  • Page 81: Install The Front Vga Assembly

    If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Install the front VGA assembly Use this procedure to install the front VGA assembly. Before installing the front VGA assembly: 1.
  • Page 82 Step 4. Tile and install the cable cover. Figure 59. Front VGA assembly installation Step 5. Install the front VGA assembly with four screws. Figure 60. Front VGA assembly installation Step 6. Connect the front video cable to the system board. ThinkSystem SR850 Maintenance Manual...

  • Page 83: Lom Adapter Replacement

    Figure 61. Front VGA assembly installation After installing front VGA assembly, complete the following steps: 1. Reinstall the fan cage (see “Install the fan cage assembly” on page 2. Reinstall the top cover (see “Install the top cover” on page 146).
  • Page 84 Figure 62. LOM adapter removal Step 4. Carefully grasp the adapter and pull it out from the connector. Step 5. Close the retention latch. After removing the LOM adapter: • If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

  • Page 85: Install The Lom Adapter

    Install the LOM adapter Follow the instructions in this section to install the LOM adapter. Note: When both LOM adapter and ML2 adapter are installed to the server, the system can support up to two additional network adapters. Before installing the LOM adapter: 1.

  • Page 86: M.2 Drive And Backplane Replacement

    Figure 65. LOM adapter installation Step 4. Close the retention latch. After installing the LOM adapter, complete the following steps: 1. Reinstall the top cover (see “Install the top cover” on page 146). 2. Reconnect the power cords and any cables that you removed. 3.

  • Page 87: Remove The M.2 Backplane

    Figure 66. M.2 retainer adjustment Remove the M.2 backplane Use this procedure to remove the M.2 backplane. Before removing the M.2 backplane: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2.

  • Page 88: Install The M.2 Backplane

    Note: Pull the M.2 backplane straight up when removing it from the system board. Figure 68. M.2 backplane removal To remove an M.2 drive from the M.2 backplane, see “Remove an M.2 drive from the M.2 backplane” on page If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
  • Page 89 Figure 69. Removing USB 3.0 connector vertically To install the M.2 backplane, complete the following steps: Note: Before installing the M.2 backplane, make sure an M.2 drive is installed to every available connector on the M.2 backplane. Step 1. Align the openings located at the bottom of the blue plastic supports at each end of the M.2 backplane with the guide pin on the system board and T-head pins on the hard drive cage;...

  • Page 90: Remove An M.2 Drive From The

    Remove an M.2 drive from the M.2 backplane Use this procedure to remove an M.2 drive from the M.2 backplane. With M.2 backplane removed, complete the following steps to remove an M.2 drive from the M.2 backplane: Step 1. Press both sides of the retainer and slide it backward to loosen the M.2 drive from the M.2 backplane.
  • Page 91 Figure 72. M.2 drive slots Table 41. M.2 drive slots Slot 0 Slot 1 Step 2. Insert the M.2 drive at an angle (approximately 30 degrees) into the connector and rotate it until the notch catches on the lip of the retainer; then, slide the retainer forward (toward the connector) to secure the M.2 drive in the M.2 backplane.

  • Page 92: Memory Module Replacement

    After installing an M.2 drive in the M.2 backplane, see “Install the M.2 backplane” on page 80 to complete installation. Memory module replacement Use this procedure to remove or install a memory module. Remove a memory module Use this procedure to remove a memory module. “ATTENTION: Static Sensitive Device Ground package before opening”...
  • Page 93 Figure 75. Air baffle removal from the processor and memory expansion tray 8. If you are removing memory modules from the system board, make sure to remove the expansion tray (see “Remove the processor and memory expansion tray” on page 120) and the air baffle that is installed on the system board.

  • Page 94: Install A Memory Module

    Figure 77. Memory module removal Step 1. Open the memory module connector retaining clips to extract the memory module; then, remove the memory module. If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
  • Page 95 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface. 3. If you are installing memory modules on the processor and memory expansion tray, do not remove the expansion tray.

  • Page 96: Operator Panel Tray Assembly And Front Operator Panel Replacement

    Make sure the DCPMM firmware is the latest version. If not, update it to the latest version (see https:// sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/update_fw.html b. Configure DCPMMs and DRAM DIMMs after all the memory modules are installed (see “Configuring Intel Optane DC Persistent Memory (DCPMM)” in Setup Guide).

  • Page 97: Remove The Operator Panel Tray Assembly

    Remove the operator panel tray assembly Use this procedure to remove the operator panel tray assembly. Before removing the operator panel tray assembly: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55).

  • Page 98: Install The Operator Panel Tray Assembly

    Figure 82. Removing USB 3.0 connector vertically Step 3. Remove the USB 3.0 cable from the cable guide. Step 4. Remove the screw that secures the tray assembly. Step 5. Grasp the tab on the rear of the tray assembly, and push it out from the server. Figure 83.
  • Page 99 To install the operator panel tray assembly, complete the following steps: Step 1. Align the operator panel tray assembly with the slot in the front of the server, and insert the tray assembly until it clicks into place. Figure 84. Operator panel tray assembly installation Step 2.

  • Page 100: Remove The Front Operator Panel

    Figure 86. Connecting USB 3.0 cable After installing the operator panel tray assembly, complete the following steps: 1. Reinstall the top cover (see “Install the top cover” on page 146). 2. Reconnect the power cords and any cables that you removed. 3.

  • Page 101: Install The Front Operator Panel

    If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Install the front operator panel Use this procedure to install the front operator panel. Before installing the front operator panel: 1.
  • Page 102 4. Remove the top cover (see “Remove the top cover” on page 145). 5. Disconnect the USB 3.0 cable of operator panel tray assembly, and remove it vertically from the system board. Figure 89. Removing USB 3.0 connector vertically To remove the PCIe riser-card assembly, complete the following steps: Step 1.
  • Page 103 Figure 91. PCIe riser-card removal After removing the PCIe riser-card assembly: • If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. • If you plan to recycle the riser-card assembly, complete the following steps to disassemble the riser-card assembly, and recycle the components with compliance to local regulations.

  • Page 104: Install The Pcie Riser-Card Assembly

    Figure 93. Disassembling the PCIe riser-card assembly Demo video Watch the procedure on YouTube Install the PCIe riser-card assembly Use this procedure to install the PCIe riser-card assembly. Before installing the PCIe riser-card assembly: 1. Read the safety information and installation guidelines (see “Safety”...
  • Page 105 Figure 95. PCIe riser-card assembly Install the PCIe riser-card to the riser-cage with screws. Figure 96. PCIe riser-card assembly Step 2. Align the PCIe riser-card assembly with the connector on the system board; then, push it in until it clicks in place. Chapter 3 Hardware replacement procedures...

  • Page 106: Remove An Adapter

    Figure 97. PCIe riser-card assembly installation Step 3. Reconnect all the cables disconnected previously. After installing the PCIe riser-card assembly, complete the following steps: 1. Reinstall the top cover (see “Install the top cover” on page 146). 2. Reconnect the power cords and any cables that you removed. 3.

  • Page 107: Install An Adapter

    Step 3. Grasp the adapter by upper corners, and pull it from the system board. Figure 98. Adapter removal from the system board Remove an adapter from the PCIe riser-card assembly To remove an adapter from a PCIe riser-card assembly removed from the server, complete the following steps: Step 1.
  • Page 108 Before installing an adapter: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface. Follow the following instructions accordingly to the location where the adapter is to be installed.

  • Page 109: Power Supply Unit Replacement

    Step 2. Align the adapter with the connector on the PCIe riser-card assembly. Step 3. Push the adapter into the PCIe riser-card assembly until it clicks into place. Figure 101. Adapter installation to the PCIe riser-card assembly Step 4. Close the bracket. After installing an adapter in a PCIe riser-card assembly, complete the following steps: 1.
  • Page 110 DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: • Connect all power cords to a properly wired and grounded electrical outlet/source. • Connect any equipment that will be attached to this product to properly wired outlets/sources. •...
  • Page 111 To Connect: To Disconnect: 1. Turn OFF subject dc power source(s) and equipment 1. Disconnect or turn off the subject dc power source(s) (s) that are attached to this product. (at the breaker panel) before removing the power supply unit(s). 2.
  • Page 112 Figure 102. CMA adjustment If you have installed the 2U CMA Upgrade Kit for Toolless Slide Rail or Toolless Slide Rail Kit with 2U CMA, do the following: a. Press down the stop bracket and rotate it to the open position. b.

  • Page 113: Install A Hot-Swap Power Supply Unit

    Figure 103. Power supply unit removal Step 2. Grasp the handle, pull the power supply out of the server and set it aside. Note: Fill the power supply bay with a filler if you are not replacing a new power supply immediately.
  • Page 114 DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: • Connect all power cords to a properly wired and grounded electrical outlet/source. • Connect any equipment that will be attached to this product to properly wired outlets/sources. •...
  • Page 115 To Connect: To Disconnect: 1. Turn OFF subject dc power source(s) and equipment 1. Disconnect or turn off the subject dc power source(s) (s) that are attached to this product. (at the breaker panel) before removing the power supply unit(s). 2.
  • Page 116 Figure 104. CMA adjustment If you have installed the 2U CMA Upgrade Kit for Toolless Slide Rail or Toolless Slide Rail Kit with 2U CMA, do the following: a. Press down the stop bracket and rotate it to the open position. b.
  • Page 117 Figure 105. Power supply unit installation Notes: • Pull the handle to try if the power supply unit is properly installed. If it slides out, reinstall it. • Power supply 1 is on the bottom, while power supply 2 is on the top. For more details, see “Rear view”...

  • Page 118: Processor And Heat Sink Replacement

    Use the following procedures to replace an assembled processor and heat sink, known as a processor-heat- sink module (PHM), a processor, or a heat sink. Attention: Before reusing a processor or heat sink, make sure you use Lenovo proven alcohol cleaning pad and thermal grease.
  • Page 119 4. Remove the system board air baffle (see “Remove the system board air baffle and the power interposer” on page 126) or the processor and memory expansion tray and the expansion tray air baffle (see “Remove the processor and memory expansion tray” on page 120).
  • Page 120 Figure 107. Removing a PHM Attention: To prevent damage to components, make sure that you follow the indicated loosening sequence. Fully loosen the Torx T30 captive fasteners on the processor-heat-sink module in the removal sequence shown on the heat-sink label. Lift the processor-heat-sink module from the processor socket.
  • Page 121 Figure 108. Separating a heat sink from a processor 1. Press the retaining clip at the corner of the processor retainer closest to the pry point; then, gently pry this corner of the retainer away from the heat sink with a flat-bladed screwdriver, using a twisting motion to break the processor-to-heat-sink seal.

  • Page 122: Install A Processor And Heat Sink

    • See for a list of processors supported for your https://static.lenovo.com/us/en/serverproven/index.shtml server. All processors on the system board must have the same speed, number of cores, and frequency. • Before you install a new PHM or replacement processor, update your system firmware to the latest level.
  • Page 123 Figure 109. Removing a processor retainer Note: When the processor is out of its retainer, hold the processor by the long edges to prevent touching the contacts or the thermal grease, if it is applied. With the processor-contact side up, flex the ends of the retainer down and away from the processor to release the retaining clips;...
  • Page 124 3) If there is any old thermal grease on the processor, gently clean the top of the processor using an alcohol cleaning pad. Note: If you are applying new thermal grease on the top of the processor, make sure to do it after the alcohol has fully evaporated.
  • Page 125 Figure 112. Assembling a PHM in the shipping tray a. Align the triangular marks on the processor retainer and the heat sink or align the triangular mark on the processor retainer with the notched corner of the heat sink. b. Insert the processor-retainer clips into the holes on the heat sink. c.
  • Page 126 Figure 113. Processor locations Table 45. Processor locations Processor 3 Processor 4 Processor 1 Processor 2 Step 1. Remove the processor socket cover, if one is installed on the processor socket, by placing your fingers in the half-circles at each end of the cover and lifting it from the system board. Step 2.

  • Page 127: Processor And Memory Expansion Tray

    Figure 114. Installing a PHM Align the triangular marks and guide pins on the processor socket with the PHM; then, insert the PHM into the processor socket. Attention: To prevent damage to components, make sure that you follow the indicated tightening sequence.

  • Page 128: Remove The Processor And Memory

    Note: If your server comes with two processors, skip this section and go to “System board air baffle and the power interposer replacement” on page 126. Remove the processor and memory expansion tray Use this procedure to remove the processor and memory expansion tray. Before removing the processor and memory expansion tray: 1.
  • Page 129 Figure 116. Processor and memory expansion tray removal Step 3. Loosen the two screws that secure the expansion tray to the chassis. Step 4. Grasp the handle and slowly lift the expansion tray from the server; then, set it on a flat surface. After removing the processor and memory expansion tray: •...

  • Page 130: Install The Processor And Memory Expansion

    Watch the procedure on YouTube Install the processor and memory expansion tray Use this procedure to install the processor and memory expansion tray. Before installing the processor and memory expansion tray: 1. Read the safety information and installation guidelines (see “Safety”...
  • Page 131 Figure 118. Processor and memory expansion tray installation Step 6. Slide the power supply 2 back into the chassis. Step 7. Install DIMMs (see “Install a memory module” on page 86), PHMs (see “Install a processor and heat sink” on page 114), and the expansion tray air baffle on the expansion tray.

  • Page 132: Security Bezel Replacement

    Figure 119. Expansion tray air baffle installation Attention: 1. For the optimal performance, make sure both PHMs and corresponding DIMMs are installed to the processor and memory expansion tray. 2. Air baffle is required for airflow that creates proper cooling. Make sure proper air baffles for system configuration is installed before the power is turned on.

  • Page 133: Install The Security Bezel

    Step 1. Insert the key that comes with the server and rotate it clockwise to unlock the security bezel to the open position. Figure 120. Unlocking the security bezel Step 2. Press on the release latch and pivot the security bezel outward to remove it from the chassis. Figure 121.

  • Page 134: System Board Air Baffle And The Power Interposer

    Figure 122. Security bezel installation Step 2. Use the key to lock the security bezel to the closed position. Figure 123. Locking the security bezel After installing the security bezel, push or install the server into the rack if necessary. See ThinkSystem SR850 Rack Installation Guide that comes with the rail kit.
  • Page 135 2. Turn off the server and peripheral devices and disconnect the power cords and all external cables (see “Power off the server” on page 11). 3. If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the server from the rack.

  • Page 136: Install The System Board Air Baffle And The Power Interposer

    Figure 125. System board air baffle removal If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you. Install the system board air baffle and the power interposer Use this procedure to install the system board air baffle and the power interposer.
  • Page 137 Figure 126. Power interposer installation Step 3. Align the two pairs of nailheads of the system board air baffle to slots, and lower it into the server. Attention: Air baffle is required for airflow that creates proper cooling. Make sure proper air baffles for system configuration is installed before the power is turned on.

  • Page 138: System Board Replacement

    Before removing the system board: 1. Record all system configuration information, such as Lenovo XClarity Controller (XCC) IP addresses, vital product data, and the machine type, model number, serial number, Universally Unique Identifier, and asset tag of the server.
  • Page 139 Step 9. Disconnect the USB 3.0 cable of operator panel tray assembly and remove it vertically from the system board. Figure 128. Disconnecting USB 3.0 vertically Step 10. Remove all the PHMs installed on the system board (see “Install a processor and heat sink” on page 114).

  • Page 140: Install The System Board

    Figure 130. System board removal Note: This handle only serves the purpose of removing system board. Do not attempt to lift the whole server with it. After removing the system board: • If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
  • Page 141 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface. To install the system board, complete the following steps: Step 1. Lower the short side of the system board and align it with the slots in the server;...

  • Page 142: Update The Machine Type And Serial

    3. Install any components that you removed from the failing system board. See the related topics in “Hardware replacement procedures.” 4. Update the machine type and serial number with new vital product data (VPD). Use the Lenovo XClarity Provisioning Manager to update the machine type and serial number. See “Update the machine type...
  • Page 143 The server machine type and model number. Type xxxxyyy, where xxxx is the machine type and yyy is the server model number. <s/n> The serial number on the server. Type zzzzzzz, where zzzzzzz is the serial number. <system model> The system model. Type system yyyyyyyy, where yyyyyyyy is the product identifier. [access_method] The access method that you select to use from the following methods: –...

  • Page 144: Enable Tpm/Tcm

    • From Lenovo XClarity Provisioning Manager To set the TPM policy from Lenovo XClarity Provisioning Manager: 1. Start the server and press the key according to the on-screen instructions to display the Lenovo XClarity Provisioning Manager interface. 2. If the power-on Administrator password is required, enter the password.
  • Page 145 Note: Please note that a Local IPMI user and password must be setup in Lenovo XClarity Controller for remote accessing to the target system. To set the TPM policy from Lenovo XClarity Essentials OneCLI: 1. Read TpmTcmPolicyLock to check whether the TPM_TCM_POLICY has been locked: OneCli.exe config show imm.TpmTcmPolicyLock --override --imm <userid>:<password>@<ip_address>...
  • Page 146 Set the TPM version To be able to set the TPM version, Physical Presence must be asserted. The Lenovo XClarity Provisioning Manager or the Lenovo XClarity Essentials OneCLI can be used to set the TPM version. To set the TPM version: 1.

  • Page 147: Enable Uefi Secure Boot

    To enable UEFI Secure Boot from Lenovo XClarity Provisioning Manager: 1. Start the server and press the key specified in the on-screen instructions to display the Lenovo XClarity Provisioning Manager interface. (For more information, see the “Startup” section in the LXPM documentation compatible with your server at https://sysmgt.lenovofiles.com/help/topic/lxpm_frontend/...

  • Page 148: Tcm/Tpm Adapter Replacement

    OneCli.exe config set SecureBootConfiguration.SecureBootSetting Enabled --bmc <userid>:<password>@<ip_ address> where: – <userid>:<password> are the credentials used to access the BMC (Lenovo XClarity Controller interface) of your server. The default user ID is USERID, and the default password is PASSW0RD (zero, not an uppercase o) –...
  • Page 149 Figure 132. Removing USB 3.0 connector vertically To remove the TCM/TPM adapter, complete the following steps: Step 1. Locate the TCM/TPM connector on the system board (see “System-board connectors” on page 25). Chapter 3 Hardware replacement procedures...

  • Page 150: Install The Tcm/Tpm Adapter

    Step 2. Press and hold the release latch, and then lift the TCM/TPM adapter straight up. Notes: • Carefully handle the TCM/TPM adapter by its edges. • Your TCM/TPM adapter might look slightly different from the illustration. Figure 133. TCM/TPM adapter removal If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
  • Page 151 Before installing the TCM/TPM adapter: 1. Read the safety information and installation guidelines (see “Safety” on page iii “Installation Guidelines” on page 55). 2. Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface. 3.

  • Page 152: Top Cover Replacement

    Step 2. Insert the TCM/TPM adapter into the TCM/TPM connector on the system board. Notes: • Carefully handle the TCM/TPM adapter by its edges. • Your TCM/TPM adapter might look slightly different from the illustration. Figure 135. TCM/TPM adapter installation After installing the TCM/TPM adapter, complete the following steps: 1.

  • Page 153: Remove The Top Cover

    Remove the top cover Follow the instructions in this section to remove the top cover. S014 CAUTION: Hazardous voltage, current, and energy levels might be present. Only a qualified service technician is authorized to remove the covers where the label is attached. S033 CAUTION: Hazardous energy present.

  • Page 154: Install The Top Cover

    Figure 137. Top cover removal Step 4. Lift the cover, remove it from the server, and set it aside. Demo video Watch the procedure on YouTube Install the top cover Use this procedure to install the server top cover. S014 CAUTION: Hazardous voltage, current, and energy levels might be present.

  • Page 155: Complete The Parts Replacement

    2. Make sure all the removed components are installed, and all the disconnected cables are reconnected. To install the top cover, complete the following steps: Step 1. Press and hold on the blue tab of cover release latch; then, rotate the tip of the latch up. Step 2.
  • Page 156 • Reconfigure the disk arrays if you have installed or removed a hot-swap drive or a RAID adapter. See the Lenovo XClarity Provisioning Manager User Guide, which is available for download at: http:// datacentersupport.lenovo.com Note: Make sure the latest version of ThinkSystem M.2 with Mirroring Enablement Kit Firmware is applied to avoid virtual disk/array missing after system board replacement.

  • Page 157: Chapter 4. Problem Determination

    An alert is a message or other indication that signals an event or an impending event. Alerts are generated by the Lenovo XClarity Controller or by UEFI in the servers. These alerts are stored in the Lenovo XClarity Controller Event Log. If the server is managed by the Chassis Management Module 2 or by the Lenovo XClarity Administrator, alerts are automatically forwarded to those management applications.

  • Page 158: Light Path Diagnostics

    Lenovo XClarity Controller event log The Lenovo XClarity Controller monitors the physical state of the server and its components using sensors that measure internal physical variables such as temperature, power-supply voltages, fan speeds, and component status. The Lenovo XClarity Controller provides various interfaces to systems management software and to system administrators and users to enable remote management and control of a server.

  • Page 159: Power Supply Leds

    Identification button/ This LED is used as a presence detection Use this LED to locate the server among LED (blue) LED. You can use Lenovo XClarity other servers visually. Controller to light this LED remotely. System error LED LED on: An error has occurred.
  • Page 160 • Two processors installed • At least one 2.5-inch drive installed • One power supply • Power cord The following table describes the problems that are indicated by various combinations of the power-supply LEDs and the power-on LED on the front operator panel and suggested actions to correct the detected problems.
  • Page 161 The system is on: Power- It usually 1. Reseat the power supply. supply not fully seated, indicates the 2. Replace the power- faultystandard I/O book, or power supply is supply. faulty power-supply. not fully seated. 3. Replace the standard I/O book.

  • Page 162: System-Board Leds

    3. Save the log if necessary, and clear the log afterward. Identification LED (blue) This LED is used as a presence detection LED. You can use Lenovo XClarity Controller to light this LED remotely. Use this LED to locate the server among other servers visually.

  • Page 163: General Problem Determination Procedures

    • Any external devices. • Surge-suppressor device (on the server). • Printer, mouse, and non-Lenovo devices. • Each adapter. • Hard disk drives. • Memory modules until you reach the minimum configuration that is supported for the server.

  • Page 164: Resolving Suspected Ethernet Controller Problems

    Complete the following steps to diagnose and resolve a suspected power problem. Step 1. Check the event log and resolve any errors related to the power. Note: Start with the event log of the application that is managing the server. For more information about event logs, see “Event logs”...

  • Page 165: Troubleshooting By Symptom

    1. Check the event log of the application that is managing the server and follow the suggested actions to resolve any event codes. • If you are managing the server from the Lenovo XClarity Administrator, begin with the Lenovo XClarity Administrator event log.
  • Page 166 Multiple hard drives fail Complete the following steps until the problem is solved: • View the Lenovo XClarity Controller event log for events related to power supplies or vibration issues and resolve those events. • Make sure that the device drivers and firmware for the hard disk drive and server are at the latest level Important: Some cluster solutions require specific code levels or coordinated code updates.

  • Page 167: Fan Problems

    Green hard disk drive activity LED does not represent actual state of associated drive Complete the following steps until the problem is solved: 1. If the green hard disk drive activity LED does not flash when the drive is in use, run the diagnostics tests for the hard disk drives.

  • Page 168: Keyboard, Mouse, Kvm Switch Or Usb-Device

    149 for information about viewing the event log. If you are using Linux base operating system, then capture all logs back to Lenovo support for further investigation. Keyboard, mouse, KVM switch or USB-device problems Use this information to solve problems related to a keyboard, mouse, KVM switch or USB-device problems.

  • Page 169: Memory Problems

    • “KVM switch problems” on page 161 • “USB-device does not work” on page 161 All or some keys on the keyboard do not work 1. Make sure that: • The keyboard cable is securely connected. • The server and the monitor are turned on. 2.
  • Page 170 • “Extra namespace appears in an interleaved region” on page 163 Displayed system memory is less than installed physical memory Complete the following steps until the problem is solved: Note: Each time you install or remove a memory module, you must disconnect the server from the power source;...

  • Page 171: Monitor And Video Problems

    Run both Memory Test and DCPMM Test for DCPMMs. 5. Reverse the modules between the channels (of the same processor), and then restart the server. If the problem is related to a memory module, replace the failing memory module. Note: When DCPMMs are installed, only adopt this method in Memory Mode. 6.
  • Page 172 2. If the server installed with the graphical adapters while turning on the server, the Lenovo logo displays on the screen after approximately 3 minutes. This is normal operation while the system loads.

  • Page 173: Network Problems

    If the system hangs during the UEFI boot process with the message UEFI: DXE INIT on the display, make sure that Option ROMs were not configured with a setting of Legacy. You can remotely view the current settings for Option ROMs by running the following command using the Lenovo XClarity Essentials OneCLI: onecli config show EnableDisableAdapterOptionROMSupport --bmc xcc_userid:xcc_password@xcc_ipaddress...
  • Page 174 You can view processor details from system setup. To determine if the processor is supported for the server, see https://static.lenovo.com/us/en/ serverproven/index.shtml 3. (Trained technician only) Make sure that processor 1 is seated correctly 4. (Trained technician only) Remove processor 2 and restart the server.
  • Page 175 Complete the following steps until the problem is solved. 1. An unusual smell might be coming from newly installed equipment. 2. If the problem remains, contact Lenovo Support. Server seems to be running hot Complete the following steps until the problem is solved.

  • Page 176: Optional-Device Problems

    • “Insufficient PCIe resources are detected.” on page 168 • “A Lenovo optional device that was just installed does not work.” on page 169 • “A Lenovo optional device that worked previously does not work now” on page 169 External USB device is not recognized Complete the following steps until the problem is resolved: 1.

  • Page 177: Power On And Power Off Problems

    9. DC cycle the system and ensure the system is enter UEFI boot menu or the operating system; then, capture the FFDC log. 10. Contact Lenovo technical support. A Lenovo optional device that was just installed does not work. 1. Make sure that: • The device is supported for the server (see https://static.lenovo.com/us/en/serverproven/index.shtml...
  • Page 178 Embedded hypervisor is not in the boot list Complete the following steps until the problem is resolved: 1. Make sure that the optional embedded hypervisor flash device is selected on the boot manager <F12> at startup. Select Boot Device 2. Make sure that the embedded hypervisor flash device is seated in the connector correctly. 3.

  • Page 179: Processor Problems

    You can view processor details from system setup. To determine if the processor is supported for the server, see https://static.lenovo.com/us/en/serverproven/index.shtml 3. (Trained technician only) Make sure that processor 1 is seated correctly 4. (Trained technician only) Remove processor 2 and restart the server. (3 and 4) 5.

  • Page 180: Software Problems

    Note: If you have just installed an adapter or memory, the server might have a memory-address conflict. • The operating system is on the ServerProven list (see https://static.lenovo.com/us/en/serverproven/ index.shtml ) and supported by your hardware. • The software is designed to operate on the server.

  • Page 181: Appendix A. Hardware Disassembling For Recycle

    • One plunger (with 11 mm and 16 mm wrench) • Four PH2 captive screws on the heat sink Figure 143. Disassembling the system board Step 2. Separate the system board from the supporting sheet metal. © Copyright Lenovo 2017, 2022...

  • Page 182: Disassemble The Processor And Memory Expansion Tray For Recycle

    After disassembling the system board, comply with local regulations when recycling. Disassemble the processor and memory expansion tray for recycle Follow the instructions in this section to disassemble the processor and memory expansion tray before recycle. Before disassembling the processor and memory expansion tray: 1.

  • Page 183: Disassemble The Server For Chassis Recycle

    After disassembling the processor and memory expansion tray, comply with local regulations when recycling. Disassemble the server for chassis recycle Follow the instructions in this section to disassemble the server before recycling the chassis. Before disassembling the server: 1. Read the safety information and installation guidelines (see “Safety”...
  • Page 184 ThinkSystem SR850 Maintenance Manual...

  • Page 185: Appendix B. Getting Help And Technical Assistance

    Appendix B. Getting help and technical assistance If you need help, service, or technical assistance or just want more information about Lenovo products, you will find a wide variety of sources available from Lenovo to assist you. On the World Wide Web, up-to-date information about Lenovo systems, optional devices, services, and support are available at: http://datacentersupport.lenovo.com...

  • Page 186: Collecting Service Data

    Collecting service data To clearly identify the root cause of a server issue or at the request of Lenovo Support, you might need collect service data that can be used for further analysis. Service data includes information such as event logs and hardware inventory.

  • Page 187: Contacting Support

    • Lenovo XClarity Essentials OneCLI Lenovo XClarity Essentials OneCLI has inventory application to collect service data. It can run both in- band and out-of-band. When running in-band within the host operating system on the server, OneCLI can collect information about the operating system, such as the operating system event log, in addition to the hardware service data.
  • Page 188 ThinkSystem SR850 Maintenance Manual...

  • Page 189: Appendix C. Notices

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.

  • Page 190: Trademarks

    (TBW). A device that has exceeded this limit might fail to respond to system-generated commands or might be incapable of being written to. Lenovo is not responsible for replacement of a device that has exceeded its maximum guaranteed number of program/erase cycles, as documented in the Official Published Specifications for the device.

  • Page 191: Electronic Emission Notices

    Electronic emission notices When you attach a monitor to the equipment, you must use the designated monitor cable and any interference suppression devices that are supplied with the monitor. Taiwan Region BSMI RoHS declaration Appendix C. Notices...

  • Page 192: Taiwan Region Import And Export Contact Information

    Taiwan Region import and export contact information Contacts are available for Taiwan Region import and export information. ThinkSystem SR850 Maintenance Manual...

  • Page 193: Index

    PCIe riser-card force NMI button RAID adapter function rear front operator panel connectors, internal system board controls and LEDs contamination, particulate and gaseous install © Copyright Lenovo 2017, 2022...
  • Page 194 remove security bezel front operator panel with LCD display TCM/TPM adapter front VGA assembly installPCIe riser-card assembly install insufficient PCIe resource remove solving replacement intermittent problems front view internal, system board connectors LED location 13–14 Introduction front view of the server 13–14 jumpers, switches, and buttons gaseous contamination...
  • Page 195 LED processor heat sink module power-supply LED 21, 23 processor-heat-sink module presence detection button removing problems memory module Ethernet controller security bezel © Copyright Lenovo 2017, 2022...
  • Page 196 TCM/TPM adapter solving power problems replace Specifications PCIe static-sensitive devices PCIe riser-card assembly, adapter handling replacement support web page, custom air baffle switch block, on the system board backplane, drive switches CMOS battery on the system board fan, fan cage switches, jumpers, and buttons front VGA assembly on the system board...
  • Page 197 163, 171 video connector Trusted Cryptographic Module front 13–14 Trusted Platform Module rear 21, 24 video problems 163, 171 UEFI Secure Boot updating, working inside the server machine type power on connector 21, 23 USB-device problems © Copyright Lenovo 2017, 2022...
  • Page 198 ThinkSystem SR850 Maintenance Manual...
  • Page 200 Part Number: SP47A24295 Printed in China (1P) P/N: SP47A24295 *1PSP47A24295*...

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