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Remove the system board

Follow instructions in this section to remove the system board. The procedure must be executed by a trained technician.

About this task

Important
  • This task must be operated by trained technicians that are certified by Lenovo Service. Do not attempt to remove or install the part without proper training and qualification.
  • When removing the memory modules, label the slot number on each memory module, remove all the memory modules from the system board, and set them aside on a static-protective surface for reinstallation.
  • When disconnecting cables, make a list of each cable and record the connectors the cable is connected to, and use the record as a cabling checklist after installing the new system board.
Attention

Procedure

  1. Make preparation for this task.
    1. Record all system configuration information, such as Lenovo XClarity Controller IP addresses, vital product data, and the machine type, model number, serial number, Universally Unique Identifier, and asset tag of the server.
    2. Save the system configuration to an external device with Lenovo XClarity Essentials.
    3. Save the system event log to external media.
  2. Remove the following components.
    1. Remove the 2U compute shuttle. See Remove the 2U compute shuttle.
    2. Remove the processor air baffle. See Remove the processor air baffle.
    3. Remove all the processors and the heat sinks. See Remove a processor and heat sink.
    4. Make sure to label the slot number on each memory module, remove all the memory modules from the system board, and set them aside on a static-protective surface for reinstallation. See Remove a memory module.
      Important
      It is advised to print out the layout of memory module slots for reference.
    5. If applicable, remove the PCIe riser assembly(ies). See Remove a PCIe riser assembly.
    6. If applicable, remove the system I/O board. See Remove the system I/O board.
  3. Disconnect all the cables from the system board. As you disconnect the cables, make a list of each cable and record the connectors the cables are connected to, and use the record as a cabling checklist after installing the new system board.
  4. Remove the two cable guides.
    1. Unfasten the two screws that secure the cable guide to the 2U compute shuttle; then, lift the cable guide out of the 2U compute shuttle.
      Figure 1. Cable guide removal
      Cable guide removal
    2. Repeat to remove the other cable guide.
  5. Disengage the system board.
    1. Loosen the (1) thumbscrew to release the system board.
    2. Slide the system board towards the front of the 2U compute shuttle as illustrated to disengage it from the shuttle.
      Figure 2. System board disengagement
      System board engagement
      1 Thumbscrew
  6. Remove the system board from the 2U compute shuttle.
    Figure 3. System board removal
    System board removal

After you finish

  1. Install a replacement unit. See Install the system board

  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.
    Important
    Before you return the system board, make sure that you install the processor socket covers from the new system board. To replace a processor socket cover:
    1. Take a socket cover from the processor socket assembly on the new system board and orient it correctly above the processor socket assembly on the removed system board.
    2. Gently press down the socket cover legs to the processor socket assembly, pressing on the edges to avoid damage to the socket pins. You might hear a click on the socket cover when it is securely attached.
    3. Make sure that the socket cover is securely attached to the processor socket assembly.

  3. If you plan to recycle the component, see Disassemble the system board for recycle.