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Lenovo ThinkSystem SR850 V2 Maintenance Manual
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Lenovo ThinkSystem SR850 V2 Maintenance Manual

Lenovo ThinkSystem SR850 V2 Maintenance Manual

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ThinkSystem SR850 V2
Maintenance Manual
Machine Types: 7D31 and 7D32

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Summary of Contents for Lenovo ThinkSystem SR850 V2

  • Page 1 ThinkSystem SR850 V2 Maintenance Manual Machine Types: 7D31 and 7D32...
  • Page 2 Before using this information and the product it supports, be sure to read and understand the safety information and the safety instructions, which are available at: http://thinksystem.lenovofiles.com/help/topic/safety_documentation/pdf_files.html 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 Sixth Edition (April 2021) ©...

  • Page 3: Table Of Contents

    ....107 problems ....236 Installation Guidelines ... . 107 © Copyright Lenovo 2020, 2021...
  • Page 4 Disassemble the server for chassis recycle ..251 Taiwan import and export contact information . . . 260 Index ....261 ThinkSystem SR850 V2 Maintenance Manual...

  • 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 2020, 2021...

  • 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 the Power tab 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. 4. Check inside the server for any obvious unsafe conditions, such as metal filings, contamination, water or other liquid, or signs of fire or smoke damage.
  • Page 8 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 9: Chapter 1. Introduction

    Chapter 1. Introduction The ThinkSystem SR850 V2 is a 2U rack server designed for high-volume network transaction processing. This high-performance, multi-core server is ideally suited for networking environments that require superior processor performance, input/output (I/O) flexibility, and high manageability. Figure 1. ThinkSystem SR850 V2 The server comes with a limited warranty.

  • Page 10: Specifications

    • Two 7mm drive bays support SAS/SATA/NVMe drives. Notes: When the following components are installed in the system, bay 16 to 23 are disabled, and the maximal supported drive quantity is 16. – PMEMs – 256 GB 3DS DRIMMs ThinkSystem SR850 V2 Maintenance Manual...
  • Page 11 • Slot 7: PCI Express 3.0 x8 • Slot 8: PCI Express 3.0 x8 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 • Two DRAM DIMMs in slot 8 and 20 • One power supply • One drive with RAID adapter and backplane (If OS is needed for debugging) • Six system fans (fan 1 to fan 6) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 13 Further, compliance with such government regulations depends on a variety of additional factors, including the duration of employees' exposure and whether employees wear hearing protection. Lenovo recommends that you consult with qualified experts in this field to determine whether you are in compliance with the applicable regulations.
  • Page 14 27°C or lower when PMEMs are installed. Environment ThinkSystem SR850 V2 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 AHSARE A2 specification.

  • Page 15: Particulate Contamination

    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 16: Firmware Updates

    Machine-type-specific firmware-only UXSPs are also available. See the following table to determine the best Lenovo tool to use for installing and setting up the firmware: Note: The server UEFI settings for option ROM must be set to Auto or UEFI to update firmware using Lenovo XClarity Administrator or Lenovo XClarity Essentials.
  • Page 17 • Lenovo XClarity Provisioning Manager V3 From Lenovo XClarity Provisioning Manager V3, you can update the Lenovo XClarity Controller firmware, the UEFI firmware, and the Lenovo XClarity Provisioning Manager V3 software. Note: By default, the Lenovo XClarity Provisioning Manager V3 Graphical User Interface is displayed when you press F1.
  • Page 18 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 19: Configuring The Lan Over Usb Interface

    Return to the Device Manager. Lenovo USB Remote NDIS Network Device appears under Network Adapters. Step 9. Use the Lenovo XClarity Controller interface to view or set the IP address for the LAN adapter. Additional information about using the Lenovo XClarity Controller to configure LAN over USB is available at: http://sysmgt.lenovofiles.com/help/topic/com.lenovo.systems.management.xcc.doc/NN1ia_c_...

  • Page 20: Tech Tips

    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 21: Chapter 2. Server Components

    This section contains information about each of the components associated with the server. Identifying your server When you contact Lenovo for help, the machine type, model, and serial number information helps support technicians to identify your server and provide faster service.
  • Page 22 Figure 4. XClarity Controller network access label on the pull-out information tab ThinkSystem SR850 V2 Maintenance Manual...

  • Page 23: Front View

    “Network activity LED (green)” on page 16 connector” on page 15 “Drive status LED (yellow)” on page 15 “USB 1” on page 16 (USB 2.0 with Lenovo XClarity Controller management) “Drive activity LED (green)” on page 16 “USB 2” on page 16 (USB 3.1) “2.5-inch drive bays”...
  • Page 24 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: External Lcd Diagnostics Handset

    Rack release latches Press on the latch on both sides to disengage the server from the rack and slide it out. External LCD diagnostics handset The external LCD diagnostics handset is an external device that is connected to the server with a cable, and it allows quick access to system information such as errors, system status, firmware, network, and health information.
  • Page 26 Press the plastic clip on the plug forward. Hold the clip and remove the cable from the connector. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 27 Display panel overview The diagnostics device consists of an LCD display and 5 navigation buttons. LCD display Scroll buttons (up/down/left/right) Press the scroll buttons to locate and select system information. Select button Press the select button to select from the options in the menu.
  • Page 28 Option flow diagram Navigate through the options with the scroll keys. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 29 Full menu list Following is the list of available options. Switch between an option and the subordinate information entries with the select button, and switch among options or information entries with the scroll buttons. Home Menu (System Status Dashboard) Home Menu Example System name System status...
  • Page 30 • Static IPv6 IP IPv4 Network Mask • Current IPv6 Gateway :x.x.x.x IPv4 Default Gateway • IPv6 DNS : x.x.x.x Note: Only the MAC address that is currently in use is displayed (extension or shared). ThinkSystem SR850 V2 Maintenance Manual...

  • Page 31: Rear View

    System Environmental Information Sub Menu Example Ambient Temp: 24 C Exhaust Temp: 30 C • Ambient temperature PSU1: Vin= 213 w Inlet= 26 C • Exhaust temperature • PSU status FAN1 Front: 21000 RPM • Spinning speed of fans by RPM FAN2 Front: 21000 RPM FAN3 Front:...
  • Page 32 Riser 2 (PCIe slot 5-6) Install x16/x16 FH/HL PCIe Riser into this zone. Table 6. Riser 2 PCIe slots Slot x16/x16 PCIe riser card PCI Express 3.0 (x8) Install adapters, particularly RAID adapters, to these slots. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 33 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 34 If the shared management connector fails, traffic can automatically switch over to another connector on the adapter. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 35: Identifying Connectors

    Identifying connectors See this section to locate and identify the connectors on the electric boards. Chapter 2 Server components...

  • Page 36: System Board Connectors

    OCP connector (PCIe slot 4) On-board SATA connector USB front panel module connector PCIe riser connector (PCIe slot 5 to 6) PCIe signal connector 2 PCIe slot 7 (x8) UPI connectors PCIe slot 8 (x8) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 37 Table 7. System board connectors (continued) Processor and memory expansion tray power Intrusion switch connector connector Front I/O connector 7mm drive signal connector Drive backplane power connectors 7mm drive power connector Chapter 2 Server components...

  • Page 38: Processor And Memory Expansion Tray

    See this section to locate the connectors on the processor and memory expansion tray. Figure 8. Processor and memory expansion tray connectors Table 8. Processor and memory expansion tray connectors PCIe signal connector 3 PCIe signal connector 6 PCIe signal connector 5 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 39: Power Backplane Connectors

    Power backplane connectors See this section to locate the connectors on the power backplane. Figure 9. Power backplane components Table 9. Power backplane components Power backplane sideband connector Power supply unit 2 connector Power LED Power supply unit 1 connector Power switch 2.5-inch 8-bay drive backplane connectors See this section to locate the connectors in the 2.5-inch 8-bay drive backplanes.
  • Page 40 SAS/SATA drive backplane See this section to locate the connectors on the SAS/SATA drive backplanes. SAS/SATA signal connector Backplane power/configuration connector Figure 10. SAS/SATA drive backplane connectors ThinkSystem SR850 V2 Maintenance Manual...

  • Page 41: Pcie Riser Card Connectors

    AnyBay/NVMe drive backplane See this section to locate the connectors on the AnyBay/NVMe drive backplanes. NVMe signal connector (6-7) NVMe signal connector (4-5) SAS/SATA signal connector Backplane power/configuration connector NVMe signal connector (2-3) NVMe signal connector (0-1) Figure 11. AnyBay/NVMe drive backplane connectors PCIe riser card connectors See this section to locate the connectors on the PCIe riser cards.
  • Page 42 Figure 12. x16/x16 (x8 lanes) PCIe riser card connectors Table 10. x16/x16 (x8 lanes) PCIe riser card connectors PCIe full-height riser PCI Express 3.0 x16 (x8 lane) (Slot 2) PCI Express 3.0 x16 (x8 lane) (Slot 1) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 43 x16/x16/x16 PCIe riser card See this section to locate the connectors on the x16/x16/x16 PCIe riser card. Figure 13. x16/x16/x16 PCIe riser card connectors PCIe full-height riser PCIe cable connector PCI Express 3.0 x16 (Slot 3) PCI Express 3.0 x16 (Slot 1) PCIe cable connector PCI Express 3.0 x16 (Slot 2) Chapter 2...

  • Page 44: Switches, Jumpers, And Buttons

    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. Figure 15. Switches, jumpers and buttons “NMI button” on page 37 “SW4” on page 37 “Light path button” on page 37 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 45: System Board Leds

    You might have to use a pen or the end of a straightened paper clip to press the button. 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). Light path button Table 12.

  • Page 46: Leds

    DIMM 1-24 error LEDs XCC heartbeat LED (Green) Fan error LEDs FPGA heartbeat LED (Green) Processor and memory expansion tray LEDs See this section to locate the LEDs on the processor and memory expansion tray. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 47: 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 48 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 49 • Consumable and Structural parts: Purchase and replacement of consumable and structural parts (components, such as a cover or bezel) is your responsibility. If Lenovo acquires or installs a structural component at your request, you will be charged for the service.
  • Page 50 Power backplane √ Chassis √ Upper expansion tray air baffle √ Fan cage √ System board √ System board air baffle √ Processor and memory expansion tray √ External LCD diagnostics handset √ CMOS battery √ ThinkSystem SR850 V2 Maintenance Manual...

  • Page 51: 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 52 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 53: Chapter 3. Internal Cable Routing

    190) • Fan cage (see “Remove the fan cage assembly” on page 130) 2. Make sure to install all the drive backplanes that you plan to installed (see “Install a drive backplane” on page 112). © Copyright Lenovo 2020, 2021...
  • Page 54 Connect power cables to drive backplanes as illustrated. Figure 19. Drive backplane power cables Table 17. Drive backplane power cables Drive backplane 1 to connector 1 Drive backplane 3 to connector 3 Drive backplane 2 to connector 2 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 55 Cable guides Make sure all the signal cables go through the cable guides on the system board and the memory expansion tray. Figure 20. Cable guides on the system board Figure 21. Cable guides on the processor and memory expansion tray SAS/SATA cables for Gen3 and Gen4 RAID adapters When picking cables for 8i and 16i RAID adapters from SAS/SATA cable kits, make sure to choose the cables based on the generation of RAID adapters that you plan to install:...

  • Page 56: Connecting Cables To The Processor And Memory Expansion Tray

    2. Install the expansion tray air baffle. Figure 22. Installing the expansion tray air baffle 3. Align the processor and memory expansion tray with the two pairs of guides on the sides, and lower it into the chassis. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 57 Figure 23. Installing the processor and memory expansion tray 4. Route the two PCIe cables through the side cable guides, and connect them to the processor and memory expansion tray. Figure 24. Connecting cables to the expansion tray Chapter 3 Internal cable routing...

  • Page 58: Connecting Cables To The Nvme Switch

    When working on cable routing plans that involve NVMe switch cards, perform the procedure in the following order. Step 1. Complete the procedure in “Connecting cables to the processor and memory expansion tray” on page 48. Step 2. Connect the four PCIe cables to the two NVMe switch cards. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 59: Sas/Sata Backplane Combinations

    Note: Make sure to match the drive backplane and NVMe switch card connectors as following: Table 18. Drive backplane and NVMe switch card connectors AnyBay/NVMe drive backplane Switch card connector connector Figure 26. Connecting cables to the NVMe switch cards Step 3.
  • Page 60 • “Three backplanes” on page 57 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 61 One backplane One SAS/SATA backplane On-board connector SAS/SATA cable routing Length 845 mm On-board Chapter 3 Internal cable routing...
  • Page 62 8i RAID adapter SAS/SATA cable routing Length • Gen3: 665 mm C0 (8i) • Gen4: 690 mm ThinkSystem SR850 V2 Maintenance Manual...
  • Page 63 16i RAID adapter SAS/SATA cable routing Length • Gen3: 665 mm C0 (16i) • Gen4: 690 mm Chapter 3 Internal cable routing...
  • Page 64 Two backplanes Two SAS/SATA backplanes 16i RAID adapter SAS/SATA cable routing Length • Gen3: 665 mm C0 (16i) • Gen4: 690 mm 860 mm C1 (16i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 65 Three backplanes Three SAS/SATA backplanes On-board connector + 16i RAID adapter SAS/SATA cable routing Length 845 mm On-board 860 mm C0 (16i) 1000 mm C1 (16i) Chapter 3 Internal cable routing...
  • Page 66 8i + 16i RAID adapter SAS/SATA cable routing Length • Gen3: 665 mm C0 (8i) • Gen4: 690 mm 860 mm C0 (16i) 1000 mm C1 (16i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 67 32i RAID adapter SAS/SATA cable routing Length 860 mm C0 (32i) 690 mm C1 (32i) 665 mm C2 (32i) Chapter 3 Internal cable routing...
  • Page 68 16i + 8i RAID adapter SAS/SATA cable routing Length • Gen3: 665 mm C0 (16i) • Gen4: 690 mm 860 mm C1 (16i) 1000 mm C0 (8i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 69 8i + 8i + 8i RAID adapter SAS/SATA cable routing Length 665 mm C0 (8i) 860 mm C0 (8i) 665 mm C0 (8i) Chapter 3 Internal cable routing...
  • Page 70 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 71 Chapter 3 Internal cable routing...

  • Page 72: Nvme Backplane Combinations

    PCIe cables to the PCIe switch cards. See the following sections for cable routing combinations with only NVMe drive backplanes. • “One backplane” on page 65 • “Two backplanes” on page 67 • “Three backplanes” on page 69 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 73 One backplane One NVMe backplane System board PCIe cable routing Length NVMe connector 0-1, 2-3 670 mm PCIe 1 (on- board) 4-5, 6-7 910 mm PCIe 2 (on- board) Chapter 3 Internal cable routing...
  • Page 74 Processor and memory expansion tray PCIe cable routing Length NVMe connector 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 75 Two backplanes Two NVMe backplanes System board + processor and memory expansion tray PCIe cable routing Length NVMe connector 0-1, 2-3 670 mm PCIe 1 (on- board) 4-5, 6-7 910 mm PCIe 2 (on- board) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray)
  • Page 76 PCIe cable routing NVMe Length connector 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 77 Three backplanes Three NVMe backplanes System board + processor and memory expansion tray + PCIe switch cards PCIe cable routing NVMe Length connector 0-1, 2-3 670 mm PCIe 1 (on- board) 4-5, 6-7 910 mm PCIe 2 (on- board) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7...
  • Page 78 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 79: One-Anybay-Backplane Combinations

    One-AnyBay-backplane combinations Follow the instructions in this section to learn how do cable routing for combinations with one AnyBay backplane. See the following sections for cable routing combinations with one AnyBay drive backplane. • “With two processors” on page 72 –...

  • Page 80: With Two Processors

    One backplane One AnyBay backplane On-board connector SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 670 mm On-board PCIe 1 (on-board) 4-5, 6-7 910 mm PCIe 2 (on-board) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 81 8i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (8i) 0-1, 2-3 670 mm PCIe 1 (on-board) 4-5, 6-7 910 mm PCIe 2 (on-board) Chapter 3 Internal cable routing...
  • Page 82 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector • Gen3: 665 mm C0 (16i) 0-1, 2-3 670 mm PCIe 1 (on-board) • Gen4: 690 mm 4-5, 6-7 910 mm PCIe 2 (on-board) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 83: Two Backplanes

    Two backplanes One AnyBay and one SAS/SATA backplane 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (16i) 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm C1 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) Chapter 3 Internal cable routing...

  • Page 84: Three Backplanes

    SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 670 mm On-board PCIe 1 (on-board) 860 mm C0 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 1000 mm C1 (16i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 85 8i + 16i RAID adapters SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (8i) 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm 4-5, 6-7 910 mm C0 (16i) PCIe 2 (on-board) 1000 mm C1 (16i) Chapter 3 Internal cable routing...
  • Page 86 SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 860 mm 0-1, 2-3 670 mm C0 (32i) PCIe 1 (on-board) 690 mm C1 (32i) 4-5, 6-7 910 mm PCIe 2 (on-board) 665 mm C2 (32i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 87 16i + 8i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (16i) 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm C1 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 1000 mm C0 (8i) Chapter 3 Internal cable routing...

  • Page 88: With Four Processors

    PCIe cables to the processor and memory expansion tray. One backplane One AnyBay backplane On-board connector SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 530 mm On-board PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 89 8i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (8i) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) Chapter 3 Internal cable routing...
  • Page 90 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector • Gen3: 665 mm C0 (16i) 0-1, 2-3 530 mm PCIe 3 (tray) • Gen4: 690 mm 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 91: Two Backplanes

    Two backplanes One AnyBay and one SAS/SATA backplane 8i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 860 mm 0-1, 2-3 530 mm C0 (8i) PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) Chapter 3 Internal cable routing...
  • Page 92 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (16i) 0-1, 2-3 530 mm PCIe 3 (tray) 860 mm 4-5, 6-7 670 mm C1 (16i) PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 93: Three Backplanes

    Three backplanes One AnyBay and two SAS/SATA backplanes On-board connector + 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 530 mm On-board PCIe 3 (tray) 860 mm 4-5, 6-7 670 mm C0 (16i) PCIe 6 (tray) 1000 mm...
  • Page 94 SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm On-board 0-1, 2-3 530 mm PCIe 3 (tray) 860 mm C0 (16i) 4-5, 6-7 670 mm PCIe 6 (tray) 1000 mm C1 (16i) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 95 32i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 860 mm 0-1, 2-3 530 mm C0 (32i) PCIe 3 (tray) 690 mm C1 (32i) 4-5, 6-7 670 mm PCIe 6 (tray) 665 mm C2 (32i) Chapter 3 Internal cable routing...
  • Page 96 SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (16i) 0-1, 2-3 530 mm PCIe 3 (tray) 860 mm 4-5, 6-7 670 mm C1 (16i) PCIe 6 (tray) 1000 mm C0 (8i) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 97: Two-Anybay-Backplane Combinations

    Two-AnyBay-backplane combinations Follow the instructions in this section to learn how do cable routing for combinations with two AnyBay backplanes. Note: These combinations require four installed processors. See the following sections for cable routing combinations with two AnyBay drive backplanes. •...
  • Page 98 665 mm C0 (16i) 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm C1 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 99: Three Backplanes

    Three backplanes Two AnyBay and one SAS/SATA backplane On-board connector + 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 670 mm On-board PCIe 1 (on-board) 860 mm C0 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 1000 mm...
  • Page 100 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm 4-5, 6-7 910 mm C0 (16i) PCIe 2 (on-board) 1000 mm C1 (16i) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 101 32i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 860 mm 0-1, 2-3 670 mm C0 (32i) PCIe 1 (on-board) 690 mm C1 (32i) 4-5, 6-7 910 mm PCIe 2 (on-board) 665 mm 0-1, 2-3 530 mm C2 (32i) PCIe 3 (tray) 4-5, 6-7...
  • Page 102 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm C1 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 1000 mm C0 (8i) 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 103: With Pcie Switch Card

    With PCIe switch card With one PCIe switch card installed, there is one more option for NVMe cable connection. Follow the instructions in this section to learn how do cable routing for combinations with two AnyBay backplanes and a PCIe switch card. Notes: •...

  • Page 104: Two Backplanes

    C0 (16i) 0-1, 2-3 530 mm PCIe 3 (tray) 860 mm C1 (16i) 4-5, 6-7 670 mm PCIe 6 (tray) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 105: Three Backplanes

    Three backplanes Two AnyBay and one SAS/SATA backplane On-board connector + 16i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 845 mm 0-1, 2-3 530 mm On-board PCIe 3 (tray) 860 mm 4-5, 6-7 670 mm C0 (16i) PCIe 6 (tray) 1000 mm...
  • Page 106 530 mm PCIe 3 (tray) 860 mm C0 (16i) 4-5, 6-7 670 mm PCIe 6 (tray) 1000 mm 0-1, 2-3 1100 mm C1 (16i) C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 107 32i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 860 mm 0-1, 2-3 530 mm C0 (32i) PCIe 3 (tray) 690 mm C1 (32i) 4-5, 6-7 670 mm PCIe 6 (tray) 665 mm C2 (32i) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7...
  • Page 108 530 mm PCIe 3 (tray) 860 mm 4-5, 6-7 670 mm C1 (16i) PCIe 6 (tray) 1000 mm C0 (8i) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...

  • Page 109: Three-Anybay-Backplane Combinations

    Three-AnyBay-backplane combinations Follow the instructions in this section to learn how do cable routing for combinations with three AnyBay backplanes. Notes: • These combinations require four installed processors. • See “Connecting cables to the processor and memory expansion tray” on page 48 to perform the procedure properly while connecting PCIe cables to the processor and memory expansion tray.
  • Page 110 PCIe 2 (on-board) 1000 mm 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 111 8i + 16i RAID adapters SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm on-board 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm 4-5, 6-7 910 mm C0 (16i) PCIe 2 (on-board) 1000 mm 0-1, 2-3 530 mm PCIe 3 (tray) 4-5, 6-7...
  • Page 112 PCIe 2 (on-board) 665 mm 0-1, 2-3 530 mm C2 (32i) PCIe 3 (tray) 4-5, 6-7 670 mm PCIe 6 (tray) 0-1, 2-3 1100 mm C0, C1 (Slot 5) 4-5, 6-7 1100 mm C0, C1 (Slot 6) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 113 16i + 8i RAID adapter SAS/SATA cable routing PCIe cable routing NVMe Length Length connector 665 mm C0 (16i) 0-1, 2-3 670 mm PCIe 1 (on-board) 860 mm C1 (16i) 4-5, 6-7 910 mm PCIe 2 (on-board) 1000 mm C0 (8i) 0-1, 2-3 530 mm PCIe 3 (tray)
  • Page 114 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 115: Chapter 4. Hardware Replacement Procedures

    Go to to download firmware updates for your server. ThinkSystem SR850 V2 Drivers and Software Important: Some cluster solutions require specific code levels or coordinated code updates. If the component is part of a cluster solution, verify that the latest level of code is supported for the cluster solution before you update the code.

  • Page 116: 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 117: System Reliability Guidelines

    Click the Power tab 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. 4. Check inside the server for any obvious unsafe conditions, such as metal filings, contamination, water or other liquid, or signs of fire or smoke damage.

  • Page 118: Handling Static-Sensitive Devices

    Follow instructions in this section to install or remove 2.5-inch hot-swap drives and backplanes. Remove a 2.5-inch hot-swap drive Follow instructions in this section to remove a 2.5-inch hot-swap drive. About this task Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 119 Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Remove the security bezel (see “Remove the security bezel” on page 198). Step 2. Gently rotate the release latch away to unlock the drive handle. Figure 27.
  • Page 120 • 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. Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG ThinkSystem SR850 V2 Maintenance Manual...
  • Page 121 • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Install the drive backplane. Figure 29. Installing the drive backplane Align the tabs on the bottom of the drive backplane with the slots on the system board, and insert them into the slots. Push the top of the drive backplane forward until it clicks in place. After this task is completed Proceed to complete the parts replacement (see “Complete the parts replacement”...
  • Page 122 1. Check the drive status LED to verify if the drive is operating correctly: • If the yellow LED is lit continuously, it is malfunctioning and must be replaced. • If the green LED is flashing, the drive is functioning. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 123: 7Mm Drive And Drive Cage Replacement

    Note: If the server is configured for RAID operation through a ThinkSystem RAID adapter, you might have to reconfigure your disk arrays after you install drives. See the ThinkSystem RAID adapter documentation for additional information about RAID operation and complete instructions for using ThinkSystem RAID adapter.
  • Page 124 Disconnect the cables from the 7mm drive cage. Remove the PCIe riser assembly in riser zone 1 (see “Remove the PCIe riser assembly from zone 1” on page 158). Step 2. Remove the 7mm drive cage from the riser. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 125 Figure 34. Removing the 7mm drive cage from the riser Remove the two screws that secure the drive cage to the riser. Rotate the drive cage to remove it from the riser. After this task is completed • 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 126 If necessary, secure the two drive backplanes to the drive cage with three screws. Figure 36. Installing the 7mm drive backplanes Install the 7mm drive cage to the x16/x16 (x8 lanes) PCIe riser with 7mm drive cage bracket. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 127 Figure 37. Installing the 7mm drive cage to the riser Align the drive cage with the slot on the riser. Rotate the other end of the cage inwards. Secure the drive cage to the riser with two screws. Step 2. If you plan to install other adapters to the riser, do it now (see “Install an adapter in the PCIe riser assembly”...
  • Page 128 Note: If the server is configured for RAID operation through a ThinkSystem RAID adapter, you might have to reconfigure your disk arrays after you install drives. See the ThinkSystem RAID adapter documentation for additional information about RAID operation and complete instructions for using ThinkSystem RAID adapter. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 129: 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 130 190). Remove the PCIe riser assembly in riser zone 1 (see “Remove the PCIe riser assembly from zone 1” on page 158). If OCP adapter air baffle has been installed, remove it. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 131 Figure 40. Remove the OCP adapter air baffle Grasp and lift the handle to disconnect the USB cable from the system board. Lift the air baffle to remove it. Locate the CMOS battery on the system board. Chapter 4 Hardware replacement procedures...
  • Page 132 Figure 42. Removing the CMOS battery Step 3. Pick up the battery with finger tips. After this task is completed • Install a replacement unit (see “Install the CMOS battery (CR2032)” on page 125). ThinkSystem SR850 V2 Maintenance Manual...
  • Page 133 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 134: External Lcd Diagnostics Handset

    Follow instructions in this section to remove or install the external LCD diagnostics handset. Remove the external LCD diagnostics handset Follow instructions in this section to remove the external LCD diagnostics handset. About this task S014 CAUTION: ThinkSystem SR850 V2 Maintenance Manual...
  • Page 135 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. S017 CAUTION: Hazardous moving fan blades nearby. Keep fingers and other body parts away. S033 CAUTION: Hazardous energy present.
  • Page 136 • 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. Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 137 Procedure Step 1. Align the connector on the cable with that on the server, and push it in. Figure 45. Connecting the external LCD diagnostics handset cable Step 2. Attach the external LCD diagnostics handset to a metal surface with the magnetic bottom. Figure 46.

  • Page 138: Fan And Fan Cage Replacement

    Make preparations for this task. Remove the top cover (see “Remove the top cover” on page 214). Step 2. Lift and rotate the fan cage release latches to disengage the fan cage assembly from the server. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 139 Figure 47. Removing the fan cage assembly Step 3. Lift the fan cage assembly to remove it. After this task is completed 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 fan cage assembly Follow instructions in this section to install the fan cage assembly.
  • Page 140 Figure 48. Installing the fan cage assembly Step 2. Rotate the fan cage release latches down until they stop. After this task is completed Proceed to complete the parts replacement (see “Complete the parts replacement” on page 218). ThinkSystem SR850 V2 Maintenance Manual...
  • Page 141 Remove a fan Follow instructions in this section to remove a fan. About this task S002 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 142 • 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 a fan Follow instructions in this section to install a hot-swap fan. About this task S002 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 143 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 144: Flash Power Module Replacement

    • 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. Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure ThinkSystem SR850 V2 Maintenance Manual...
  • Page 145 Step 1. Make preparations for this task. Remove the top cover (see “Remove the top cover” on page 214). Remove the PCIe riser (see “Remove the PCIe riser assembly” on page 157) where the flash power module is located. Step 2. Remove the flash power module.
  • Page 146 Slide the holder forward slightly to disengage it from the riser, and remove the holder. – Horizontal holder 1. Remove the screw that secures the holder bracket to the riser, and remove the bracket from the riser. Figure 54. Removing the holder bracket from the PCIe riser ThinkSystem SR850 V2 Maintenance Manual...
  • Page 147 2. Remove the holder from the bracket. Remove the screw that secures the holder to the bracket. Slide the holder forward slightly to disengage it from the bracket, and remove the holder. Figure 55. Removing the horizontal holder from the bracket Then, recycle the component in compliance with local regulations.

  • Page 148: Heat Sink Torx T30 Nut Replacement

    Follow the instructions in this section to remove and install a heat sink Torx T30 nut. Remove a heat sink Torx T30 nut Follow the instructions in this section to remove a PEEK (Polyether ether ketone) Torx T30 nut on the heat sink. About this task ThinkSystem SR850 V2 Maintenance Manual...
  • Page 149 Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • Turn off the server and peripheral devices and disconnect the power cords and all external cables (see “Power off the server” on page 12). •...
  • Page 150 – System air baffle (see “Remove the system board air baffle” on page 200) – Processor and memory expansion tray and expansion tray air baffle (see “Remove the processor and memory expansion tray” on page 190) 2. Remove the expansion tray air baffle. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 151 Figure 59. Removing the expansion tray air baffle Remove the PHM. See “Remove a processor and heat sink” on page 177. Step 2. Remove the Torx T30 nut. Figure 60. Removing a Torx T30 nut from the heat sink Note: Do not touch the gold contacts on the bottom of the processor. Rotate the anti-tilt wire bail inwards.
  • Page 152 Note: The heat sink, processor, and processor carrier for the system might be different from those shown in the illustrations. Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Install the Torx T30 nut. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 153: Intrusion Switch Replacement

    Figure 61. Installing a Torx T30 nut into the heat sink Note: Do not touch the gold contacts on the bottom of the processor. Rotate the anti-tilt wire bail inwards. Orient the Torx T30 nut under the anti-tilt wire bail; then, align the Torx T30 nut with the socket at an angle as shown.
  • Page 154 • 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 intrusion switch Follow instructions in this section to install the intrusion switch. About this task ThinkSystem SR850 V2 Maintenance Manual...

  • Page 155: Memory Module Replacement

    Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • 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. Watch the procedure.
  • Page 156 Figure 64. Memory module slot 1-24 on the system board Figure 65. Memory module slot 25-48 on the expansion tray Remove a memory module Follow instructions in this section to remove a memory module. About this task ThinkSystem SR850 V2 Maintenance Manual...
  • Page 157 “ATTENTION: Static Sensitive Device Ground package before opening” on page 110 Attention: Memory modules are sensitive to static discharge and require special handling. In addition to the standard guidelines for “Handling static-sensitive devices” on page 110: • Always wear an electrostatic-discharge strap when removing or installing memory modules. Electrostatic- discharge gloves can also be used.
  • Page 158 Remove the following components depending on the location of the processor that is to be removed: • If the processor is located on the processor and memory expansion tray, do not remove the expansion tray. Only remove the air baffle from the expansion tray. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 159 Figure 66. Removing the air baffle from the expansion tray • If the processor is located on the system board: 1. Remove one of the following components. – System air baffle (see “Remove the system board air baffle” on page 200) –...
  • Page 160 Figure 67. Removing the expansion tray air baffle Step 2. Remove the memory module from the slot. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 161 Figure 68. Removing a memory module Open the retaining clip on each end of the memory module slot. Grasp the memory module at both ends, and gently lift and remove it from the slot. After this task is completed 1. Install a replacement unit (see “Install a memory module” on page 153). 2.
  • Page 162 (for both Linux and Windows). ipmctl delete -pcd Notes: See the following links to learn how to download and use impctl in different operating systems: • Windows: https://datacentersupport.lenovo.com/us/en/videos/YTV101407 • Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642 5. Reboot the system. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 163: Ocp Ethernet Adapter Replacement

    Step 2. Install the memory module into the slot. Figure 69. Installing a memory module Gently open the retaining clip on each end of the memory module slot. Align the memory module with the slot, and gently place the memory module on the slot. Firmly press both ends of the memory module straight down until the retaining clips snap into the locked position.
  • Page 164 Install the OCP Ethernet adapter Follow instructions in this section to install the OCP Ethernet adapter. About this task Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 165: Pcie Riser Assembly And Adapter

    • 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. Watch the procedure. A video of this procedure is available from the following links: •...
  • Page 166 Figure 72. Removing the PCIe riser assembly from zone 1 Remove the PCIe riser assembly from zone 2 Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Make preparations for this task. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 167 Remove the top cover (see “Remove the top cover” on page 214). Disconnect cables that are connected to the adapters. Step 2. Remove the PCIe riser assembly. Figure 73. Removing the PCIe riser assembly from zone 2 Grasp the PCIe connector, and lift it gently and evenly to remove it from the processor and memory expansion tray.
  • Page 168 Step 1. Make preparations for this task. Remove the top cover (see “Remove the top cover” on page 214). Disconnect all the cables (including external ones) from the adapter. Step 2. Open the retaining latch. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 169 Step 3. Remove the screw that secures the adapter. Step 4. Grasp the adapter by upper corners, and remove it from the system board. Figure 75. Removing an adapter from the system board Remove an adapter from the PCIe riser card assembly Watch the procedure.
  • Page 170 If a filler has been installed in the PCIe slot, remove the screw that secures it, and remove the filler. Step 3. Align the adapter with the connector on the system board, and push it in. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 171 Figure 77. Installing an adapter to the system board Step 4. Secure the adapter with a screw. Step 5. Close the retention latch. Install an adapter in the PCIe riser assembly Watch the procedure. A video of this procedure is available from the following links: •...
  • Page 172 – ThinkSystem RAID 940-8i 8GB Flash PCIe Gen4 12Gb Adapter – ThinkSystem RAID 940-16i 8GB Flash PCIe 12Gb Adapter – ThinkSystem RAID 940-32i 8GB Flash PCIe 12Gb Adapter • Proceed to complete the parts replacement (see “Complete the parts replacement” on page 218). ThinkSystem SR850 V2 Maintenance Manual...
  • Page 173 Install the PCIe riser assembly Follow instructions in this section to install the PCIe riser assembly. About this task Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • Touch the static-protective package that contains the component to any unpainted metal surface on the server;...
  • Page 174 Figure 80. Connecting PCIe cables from x16/x16/x16 riser to the system board PCIe connector 1 PCIe connector 2 Install the PCIe riser assembly to zone 2 Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG ThinkSystem SR850 V2 Maintenance Manual...

  • Page 175: Power Backplane Replacement

    • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Install the PCIe riser assembly to zone 2. Figure 81. Installing the PCIe riser assembly to zone 2 If a filler has been installed, remove it. Align the PCIe riser assembly with the connector on the system board, and push it in. Connect the PCIe cable to PCIe connector 5 on the processor and memory expansion tray.
  • Page 176 Gently pull and disengage every installed power supply unit. Step 2. Disconnect the power backplane cable and remove if from the cable clip. Figure 82. Disconnecting the power backplane cable Step 3. Grasp and lift the power backplane to remove it. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 177 Figure 83. Removing the power backplane After this task is completed • Install a replacement unit (see “Install the power backplane” on page 170). • 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 178 Align the bottom connector on the backplane to the corresponding connector on the system board, and push the backplane in. Figure 85. Installing the power backplane Step 2. Route the power backplane cable through the cable clip, and connect it to the power backplane. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 179: Power Supply Unit Replacement

    Figure 86. Connecting the power backplane cable After this task is completed Proceed to complete the parts replacement (see “Complete the parts replacement” on page 218). Power supply unit replacement Follow instructions in this section to install or remove power supply units. Remove a hot-swap power supply unit Follow instructions in this section to remove a hot-swap power supply unit.
  • Page 180 Then, remove the power cord. Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Make preparations for this task. If CMA has been installed, do the following: ThinkSystem SR850 V2 Maintenance Manual...
  • Page 181 Figure 87. Adjusting CMA 1. Press down the stop bracket and rotate it to the open position. 2. Rotate the CMA out of the way to gain access to the power supply bay. Note: Make sure the cables are secured to the CMA with cable straps. Step 2.
  • Page 182 2. 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 a hot-swap power supply unit Follow instructions in this section to install a hot-swap power supply unit. About this task S002 CAUTION: ThinkSystem SR850 V2 Maintenance Manual...
  • Page 183 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 184 If CMA has been installed, do the following: Figure 89. Adjusting CMA 1. Press down the stop bracket and rotate it to the open position. 2. Rotate the CMA out of the way to gain access to the power supply bay. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 185: Processor And Heat Sink Replacement

    Note: Make sure the cables are secured to the CMA with cable straps. If you are installing the power supply into an empty bay, remove the power supply filler panel from the power supply bay. If more than one units are to be installed, start with the lowest available power supply bay. Step 2.
  • Page 186 • Remove and install only one PHM at a time. If the system board supports multiple processors, install the PHMs starting with the first processor socket. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 187 Figure 91. Processor 1 and 2 location on the system board Figure 92. Processor 3 and 4 location on the processor and memory expansion tray Note: The heat sink, processor, and processor carrier for your system might be different from those shown in the illustrations.
  • Page 188 Remove the following components depending on the location of the processor that is to be removed: • If the processor is located on the processor and memory expansion tray, do not remove the expansion tray. Only remove the air baffle from the expansion tray. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 189 Figure 94. Removing the air baffle from the expansion tray • If the processor is located on the system board: 1. Remove one of the following components. – System air baffle (see “Remove the system board air baffle” on page 200) –...
  • Page 190 Figure 95. Removing the expansion tray air baffle Step 2. Remove the PHM from the system board. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 191 Figure 96. Removing a PHM Fully loosen the Torx T30 nuts on the PHM in the removal sequence shown on the heat-sink label. Rotate the anti-tilt wire bails inward. Carefully lift the PHM from the processor socket. If the PHM cannot be fully lifted out of the socket, further loosen the Torx T30 nuts and try lifting the PHM again.
  • Page 192 Without putting the processor down, wipe the thermal grease from the top of the processor with an alcohol cleaning pad; then, place the processor on a static protective surface with the processor-contact side up. Step 2. Separate the processor carrier from the heat sink. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 193 Figure 98. Separating a processor carrier the from heat sink Note: The processor carrier will be discarded and replaced with a new one. Release the retaining clips from the heat sink. Lift the carrier from the heat sink. Wipe the thermal grease from the bottom of the heat sink with an alcohol cleaning pad. If you are instructed to return the defective component, please package the part to prevent any shipping damage.
  • Page 194 • The heat sink, processor, and processor carrier for the system might be different from those shown in the illustrations. • PHMs are keyed for the socket where they can be installed and for their orientation in the socket. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 195 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. See “Update the firmware” in the ThinkSystem SR850 V2 Setup Guide. The following illustration shows the components of the PHM.
  • Page 196 Press the processor and secure the sides under the clips on the carrier. Note: To prevent the processor from falling out of the carrier, keep the processor-contact side up and hold the processor-carrier assembly by the sides of the carrier. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 197 Step 3. Apply the thermal grease. Carefully place the processor and carrier in the shipping tray with the processor-contact side down. Make sure the triangular mark on the carrier is aligned with the triangular mark in the shipping tray. If there is any old thermal grease on the processor, gently wipe the top of the processor with an alcohol cleaning pad.

  • Page 198: Processor And Memory Expansion Tray

    • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • Turn off the server and peripheral devices and disconnect the power cords and all external cables (see “Power off the server” on page 12). ThinkSystem SR850 V2 Maintenance Manual...
  • Page 199 • 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. Watch the procedure. A video of this procedure is available from the following links: •...
  • Page 200 Figure 107. Disconnecting PCIe cables Step 4. Lift the expansion tray and remove it. Figure 108. Removing the processor and memory expansion tray After this task is completed ThinkSystem SR850 V2 Maintenance Manual...
  • Page 201 • Install a replacement unit (see “Install the processor and memory expansion tray” on page 194) or the system board air baffle (see “Install the system board air baffle” on page 201). • 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 202 Watch the procedure. A video of this procedure is available from the following links: • https://www.youtube.com/playlist?list=PLYV5R7hVcs-C6QgmsUMRG6ul0bHzrGmsG • https://list.youku.com/albumlist/show/id_54461099 Procedure Important: To avoid component damage, DO NOT remove or install memory modules or PHMs when the tray is removed from the server. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 203 Step 1. Make sure the expansion tray air baffle is installed on the system board. If not, install it. Attention: Air baffle is required for airflow that creates proper cooling. Make sure to install proper air baffles for system configuration before the power is turned on. Figure 110.
  • Page 204 If you plan to install memory modules and PHMs, do it now (see “Install a memory module” on page 153 and “Install a processor and heat sink” on page 185). Step 4. If applicable, route the two PCIe cables through the cable guides, and connect them to the expansion tray. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 205 Figure 112. Connecting cables to the expansion tray Step 5. Secure the processor and memory expansion tray. Figure 113. Securing the processor and memory expansion tray Rotate the handle all the way down. This connects and fixes the expansion tray to the system board.

  • Page 206: Security Bezel Replacement

    Insert and rotate the key clockwise to unlock the security bezel. Figure 114. Unlocking the security bezel Step 2. Press on the release latch, and rotate the security bezel away to remove it from the chassis. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 207 Figure 115. Removing the security bezel Install the security bezel Follow the instructions in this section to install the security bezel. About this task Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • 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 208: System Board Air Baffle Replacement

    • https://list.youku.com/albumlist/show/id_54461099 Procedure Step 1. Make preparations for this task. Remove the top cover (see “Remove the top cover” on page 214). Step 2. Lift the system air baffle to remove it from the server. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 209 Figure 118. Removing the system board air baffle After this task is completed • Install the processor and memory expansion tray (see “Install the processor and memory expansion tray” on page 194). • 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 210: System Board Replacement

    Remove the system board Follow instructions in this section to remove the system board. Attention: • Removing and installing this component requires trained technicians. Do not attempt to remove or install it without proper training. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 211 Step 1. Make preparations for this task. 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 212 Note: This handle only serves the purpose of removing system board. Do not attempt to lift the whole server with it. Step 3. Slide the system board left and up, and remove it from the chassis. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 213 Figure 121. Removing the system board After this task is completed • 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. Important: Before returning the system board, make sure that you install the processor socket dust covers from the new system board.
  • Page 214 Refer to local environmental, waste or disposal regulations to ensure compliance. Step 2. Remove the following components as illustrated: • 22 slotted screws • Two standoffs (with 12 mm wrench) • One plunger (with 11 mm and 16 mm wrench) ThinkSystem SR850 V2 Maintenance Manual...
  • Page 215 Figure 122. Disassembling the system board Step 3. Separate the system board from the supporting sheet metal. After this task is completed Recycle the unit in compliance with local regulations. Install the system board Follow instructions in this section to install the system board. Attention: Chapter 4 Hardware replacement procedures...
  • Page 216 Place the system board above the front VGA and diagnostics assembly, and slide the board right and forward into the chassis. Figure 123. Installing the system board Step 2. Slide the system board forward until it stops. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 217 7. Reconnect all the required cables, and boot the server. 8. Update the machine type and serial number with new vital product data (VPD). Use the Lenovo XClarity Provisioning Manager V3 to update the machine type and serial number. See “Update the machine type and serial number”...
  • Page 218 • From Lenovo XClarity Essentials OneCLI Lenovo XClarity Essentials OneCLI sets the machine type and serial number in the Lenovo XClarity Controller. Select one of the following methods to access the Lenovo XClarity Controller and set the machine type and serial number: –...
  • Page 219 If you do not specify any of these parameters, OneCLI will use the default values. When the default values are used and OneCLI is unable to access the Lenovo XClarity Controller using the online authenticated LAN access method, OneCLI will automatically use the unauthenticated KCS access method.
  • Page 220 Note: Although the setting undefined is available as a policy setting, it should not be used. • From Lenovo XClarity Essentials OneCLI Note: Please note that a Local IPMI user and password must be setup in Lenovo XClarity Controller for remote accessing to the target system.
  • Page 221 2. Configure the TPM_TCM_POLICY into XCC: – For customers in Chinese Mainland with no TPM, or customers that require to disable TPM: OneCli.exe config set imm.TpmTcmPolicy "NeitherTpmNorTcm" --override --imm <userid>:<password>@<ip_address> – For customers in Chinese Mainland that require to enable TPM: OneCli.exe config set imm.TpmTcmPolicy "NationZTPM20Only"...

  • Page 222: Top Cover Replacement

    The default user ID is USERID, and the default password is PASSW0RD (zero, not an uppercase o) – <ip_address> is the IP address of the BMC. For more information about the Lenovo XClarity Essentials OneCLI s s e e t t command, see: http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_set_command.html Top cover replacement Follow instructions in this section to install or remove the top cover.
  • Page 223 CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in spattered metal, burns, or both. Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • Turn off the server and peripheral devices and disconnect the power cords and all external cables (see “Power off the server”...
  • Page 224 Follow instructions in this section to install the server top cover. About this task 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 ThinkSystem SR850 V2 Maintenance Manual...
  • Page 225 CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in spattered metal, burns, or both. Attention: • Go over “Installation Guidelines” on page 107 to ensure that you work safely. • Touch the static-protective package that contains the component to any unpainted metal surface on the server;...

  • Page 226: Complete The Parts Replacement

    3. Make sure to install one of the following: • With two installed processors: system air baffle. • With four installed processors: – Processor and memory expansion tray – Expansion tray air baffle and upper expansion tray air baffle ThinkSystem SR850 V2 Maintenance Manual...
  • Page 227 Figure 129. Installing the air baffle to the system board Chapter 4 Hardware replacement procedures...
  • Page 228 • Update the UEFI configuration. • Reconfigure the disk arrays if you have installed or removed a hot-swap drive or a RAID adapter. See the Lenovo XClarity Provisioning Manager V3 User Guide, which is available for download at: http:// datacentersupport.lenovo.com...

  • Page 229: Chapter 5. 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 230: 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 231 Location Callouts The external LCD diagnostics handset is connected to the External LCD diagnostics handset server with an external cable. Magnetic bottom With this component, the diagnostic handset can be attached to the top or side of the rack with hands spared for service tasks.

  • Page 232: Power Supply Leds

    Power supply LEDs This topic provides information about various power supply LED status and corresponding action suggestions. The following minimum configuration is required for the ac power LED on the power supply to be lit: ThinkSystem SR850 V2 Maintenance Manual...
  • Page 233 • Power supply • Power cord • Appropriate input power from the power source The following minimum configuration is required for the server to start: • 16 GB DIMM • Two processors installed • At least one 2.5-inch drive installed •...
  • Page 234 2. Replace the power faulty power supply. not fully seated. supply unit. 3. Replace the standard I/O book. Faulty power supply. Replace the power supply. Faulty power supply. Replace the power supply. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 235: System Board Leds

    System board LEDs The following illustrations show the light emitting diodes (LEDs) on the system board. Chapter 5 Problem determination...
  • Page 236 Figure 133. System board and expansion board LEDs ThinkSystem SR850 V2 Maintenance Manual...

  • Page 237: General Problem Determination Procedures

    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 238: Resolving Suspected Power Problems

    • If you set the Ethernet controller to operate at 100 Mbps or 1000 Mbps, you must use Category 5 cabling. Step 3. Determine whether the hub supports auto-negotiation. If it does not, try configuring the integrated Ethernet controller manually to match the speed and duplex mode of the hub. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 239: 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 240 • If the adapter fails the test, replace the adapter. Multiple drives fail Complete the following procedure to solve the problem. • View the Lenovo XClarity Controller event log for events related to power supplies or vibration issues and resolve those events. ThinkSystem SR850 V2 Maintenance Manual...
  • Page 241 Multiple drives are offline Complete the following procedure to solve the problem. • View the Lenovo XClarity Controller event log for events related to power supplies or vibration issues and resolve those events. • View the storage subsystem log for events related to the storage subsystem and resolve those events.
  • Page 242 RAID adapter is configured correctly. 4. If the problem remains: a. Reseat the backplane(s), SAS signal cable(s), and backplane power cable(s). b. Restart the server. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 243: Fan Problems

    2. For a USB device: a. Make sure that the device is configured correctly. Restart the server and press F1 to display the Lenovo XClarity Provisioning Manager V3 system setup interface. Then, click System Settings ➙ Devices and I/O Ports ➙ USB Configuration.

  • Page 244: Keyboard, Mouse, Or Usb-Device Problems

    (POST Watchdog Timer). To check the POST watchdog time, restart the server and press F1 to display the Lenovo XClarity Provisioning Manager V3 system setup interface. Then, click BMC Settings ➙ POST Watchdog Timer.

  • Page 245: Memory Problems

    2. Make sure that the USB configuration options are set correctly in system setup. Restart the server and press F1 to display the Lenovo XClarity Provisioning Manager V3 system setup interface. Then, click System Settings ➙ Devices and I/O Ports ➙ USB Configuration.
  • Page 246 • If a memory module was disabled by the user or by POST, reseat the memory module; then, run the Setup utility and enable the memory module. 4. Run memory diagnostics. When you start a solution and press F1, the Lenovo XClarity Provisioning Manager V3 interface is displayed by default. You can perform memory diagnostics with this interface.
  • Page 247 (for both Linux and Windows). ipmctl delete -pcd Notes: See the following links to learn how to download and use impctl in different operating systems: • Windows: https://datacentersupport.lenovo.com/us/en/videos/YTV101407 • Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642 6. Reboot the system, and press F1 to enter Setup Utility.
  • Page 248 Clear Platform Configuration Data (PCD) and Namespace Label Storage Area (LSA) with the following ipmctl command (for both Linux and Windows). ipmctl delete -pcd Notes: See the following links to learn how to download and use impctl in different operating systems: • Windows: https://datacentersupport.lenovo.com/us/en/videos/YTV101407 • Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 249: Monitor And Video Problems

    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 250: Network Problems

    To prevent diskette drive read/write errors, make sure that the distance between the monitor and any external diskette drive is at least 76 mm (3 in.). b. Non-Lenovo monitor cables might cause unpredictable problems. 2. Reseat the monitor cable.

  • Page 251: Observable 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.
  • Page 252 You can specify the number of consecutive restart attempts in System Setup. Restart the server and press F1 to display the Lenovo XClarity Provisioning Manager V3 system setup interface. Then, click System Settings ➙ Recovery and RAS ➙ POST Attempts ➙ POST Attempts Limit. Available options are 3, 6, 9, and disable.

  • Page 253: Optional-Device Problems

    • “PCIe adapter is not recognized or is not functioning” on page 245 • “A Lenovo optional device that was just installed does not work.” on page 246 • “A Lenovo optional device that worked previously does not work now. ” on page 246 External USB device not recognized Complete the following steps until the problem is resolved: 1.

  • Page 254: Power On And Power Off Problems

    7. Ensure any adapter external connections are correct and that the connectors are not physically damaged. A Lenovo optional device that was just installed does not work. 1. Check the XCC event log for any events associated with the device.
  • Page 255 1. Make sure that the optional embedded hypervisor flash device is selected on the boot manager <F12> Select Boot Device at startup. 2. Make sure that the embedded hypervisor flash device is seated in the connector correctly. 3. See the documentation that comes with the optional embedded hypervisor flash device to validate that the device is configured correctly.

  • Page 256: Processor Problems

    • “Serial device does not work” on page 249 Number of displayed serial ports is less than the number of installed serial ports Complete the following procedure to solve the problem. 1. Make sure that: ThinkSystem SR850 V2 Maintenance Manual...

  • Page 257: 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 258 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 259: Appendix A. Hardware Disassembling For Recycle

    Step 12. Remove the power backplane from the system board (see “Remove the power backplane” on page 167). Step 13. Remove the system board (see “Remove the system board” on page 202). After disassembling the server, recycle the unit in compliance with local regulations. © Copyright Lenovo 2020, 2021...
  • Page 260 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 261: Appendix B. Getting Help And Technical Assistance

    Gathering information needed to call Support If you believe that you require warranty service for your Lenovo product, the service technicians will be able to assist you more efficiently if you prepare before you call. You can also see http:// for more information about your product warranty.

  • Page 262: 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 263: Contacting Support

    Contacting Support You can contact Support to obtain help for your issue. You can receive hardware service through a Lenovo Authorized Service Provider. To locate a service provider authorized by Lenovo to provide warranty service, go to https://datacentersupport.lenovo.com/ and use filter searching for different countries. For Lenovo support telephone numbers, see serviceprovider for your region support details.
  • Page 264 ThinkSystem SR850 V2 Maintenance Manual...

  • Page 265: 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 266: 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 267: 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 BSMI RoHS declaration Appendix C. Notices...

  • Page 268: Taiwan Import And Export Contact Information

    Taiwan import and export contact information Contacts are available for Taiwan import and export information. ThinkSystem SR850 V2 Maintenance Manual...

  • Page 269: Index

    110, 113 diagnostics panel hardware service and support telephone numbers heat sink © Copyright Lenovo 2020, 2021...
  • Page 270 PCIe riser-car assembly replacement power backplane replace PEEK T30 nut 140, 144 installing keyboard problems removing installing removing separating LAN over USB power backplane configuring manually install Windows driver installation remove power cords diagnostics panel power interposer ThinkSystem SR850 V2 Maintenance Manual...
  • Page 271 DIMM solid-state drive 110, 113 heat sink solving heat sink nut Ethernet controller problems memory module solving power problems removing Specifications microprocessor static-sensitive devices © Copyright Lenovo 2020, 2021...
  • Page 272 241, 248 Torx T30 nut TPM 2.0 firmware TPM policy TPM version Windows driver, LAN over USB trademarks troubleshooting 241, 245, 248–249 working inside the server by symptom power on DRAM ThinkSystem SR850 V2 Maintenance Manual...

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