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Install the system board

Use this information to install a new system board to the tray..

Note

If you are transferring the system board to another tray, see Transfer the system board.

About this task

Important
Gap pad/putty pad replacement guidelines

  • To identify the gap pad/putty pad location and orientation, see:

  • Before replacing the gap pad/putty pad, gently clean the interface plate or the hardware surface with an alcohol cleaning pad.

  • Hold the gap pad/putty pad carefully to avoid deformation. Make sure no screw hole or opening is blocked by the gap pad/putty pad material.

  • Do not use expired putty pad. Check the expiry date on putty pad package. If the putty pads are expired, acquire new ones to properly replace them.

Required tools

Make sure you have the required tools listed below in hand to properly replace the component.

  • SD665 V3 Water Loop Service Kit (The water loop carrier in the Service Kit is reusable, it is recommended to keep it at the facility where the server operates for future replacement needs.)

  • SD665 V3 Water Loop Putty Pad Kit

  • VR 2.5 mm Putty Pad

  • (Optional, only when there are shielding cables on the defect system board) Shielding cable 1, 2, and 3

    Putty pad cannot be reused. Whenever the water loop is removed, putty pads must be replaced with new ones before reinstalling the water loop.

  • Drive gap pad or putty pad kits according to the drives installed in the tray. See their respective replacement procedures for more information.

  • ConnectX series adapter putty pad kits according to the ConnectX adapter installed in the tray. See their respective replacement procedures for more information.

  • Screws and screwdrivers

    Prepare the following screwdrivers to ensure you can install and remove corresponding screws properly.
    Screwdriver TypeScrew Type
    Torx T10 head screwdriverTorx T10 screw
    Torx T20 head screwdriverTorx T20 screw
    Phillips #1 head screwdriverM3 screw
    Phillips #2 head screwdriverPhillips #2 screw
    3/16" hex head screwdriverM3 screw
Attention

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Turn off the corresponding DWC tray that you are going to perform the task on.

  • Disconnect all external cables from the enclosure.

  • Use extra force to disconnect QSFP cables if they are connected to the solution.

  • To avoid damaging the water loop, always use the water loop carrier when removing, installing or folding the water loop.

Firmware and driver download: You might need to update the firmware or driver after replacing a component.
Note
After XCC and UEFI firmware updates, more than one system reboot cycles are to be expected. Times of reboot cycle depends on firmware update revision. Do not shut down the system until entering UEFI setup menu or the operating system.

Procedure

Note

  • Depending on the model, your solution might look slightly different from the illustration.

  • If you are transferring the system board to another tray, see Transfer the system board.

  1. Replace the VR conduction plate putty pad. Make sure to follow Gap pad/putty pad replacement guidelines.
    1. With an alcohol cleaning pad, remove the residual putty pad from the VR conduction plate removed previously. The putty pads are on the bottom side of the VR conduction plate.
    2. Paste the VR 2.5 mm Putty Pad to the bottom side of the VR conduction plate.
      Figure 1. Replacing the VR conduction plate putty pads

  2. Install the system board.
    1. Carefully hold the front guide pin and tilt the system board at an angle.
    2. Align the connectors with the corresponding holes on the front of the node; then, gently slide the system board forward.
    Note
    Avoid touching the connectors on the system board. Be careful not to damage any surrounding components inside the node.
    Figure 2. System board installation
    System board installation
  3. (Optional) If there are shielding cables on the defect system board, install new shielding cables to the new system board. See Install the shielding cables.
  4. Install and tighten seven M3 screws per node on the system board with a 3/16" hex head screwdriver set to the proper torque.
    Note
    For reference, the torque required for the screws to be fully tightened/removed is 5.0+/- 0.5 lbf-in, 0.55+/- 0.05 N-M.
    Figure 3. System board screws installation

  5. Install the two KVM screws to the front of the node with a torque screwdriver set to the proper torque.
    Note
    For reference, the torque required for the screws to fully tightened/removed is 1.3+/-0.5 lb-in, 0.15+/- 0.05 N-M.
    Figure 4. KVM screws installation
    KVM screws installation
After you finish

  1. Install the power distribution board. See Install the power distribution board.

  2. Install the processor. See Install a processor.

  3. Install the PCIe riser assembly. See Install a PCIe riser assembly (ConnectX-6) , Install a PCIe riser assembly (ConnectX-7 NDR 200), or Install a PCIe riser assembly (ConnectX-7 NDR 400).

  4. Install the drive cage. See Install a drive cage assembly.

  5. Install the M.2 backplane assembly. See Install the M.2 backplane assembly.

  6. Install the memory modules. See Install a memory module.

  7. Install the DIMM comb. See Install a DIMM comb.

  8. Install the cross braces. See Install the cross braces.

  9. Install the tray cover. See Install the tray cover.

  10. Install the tray into the enclosure. See Install a DWC tray in the enclosure.

  11. Connect all required external cables to the solution.
    Note
    Use extra force to connect QSFP cables to the solution.

  12. Check the power LED on each node to make sure it changes from fast blink to slow blink to indicate all nodes are ready to be powered on.

  13. Update the vital product data (VPD). See Update the Vital Product Data (VPD).

    Machine type number and serial number can be found on the ID label, see Identify the solution and access the Lenovo XClarity Controller.

  14. Enable TPM/TCM. See Enable TPM.

  15. If hiding TPM or updating TPM firmware is needed, see Hide/observe TPM or Update the TPM firmware.

  16. Optionally, enable UEFI Secure Boot. See Enable UEFI Secure Boot.

Demo video

Watch the procedure on YouTube