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Remove the system board (trained technician only)

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

About this task

Important
  • Removing and installing this component requires trained technicians. Do not attempt to remove or install the part without proper training.
  • When replacing the system board, always update the server with the latest firmware or restore the pre-existing firmware. Make sure that you have the latest firmware or a copy of the pre-existing firmware before you proceed.
  • 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.

To avoid potential danger, make sure to read and follow the safety information.

  • S002
    disconnect all power
    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.
  • S012
    hot surface
    CAUTION
    Hot surface nearby.
Attention

  • Do the following before removing the system board to backup important data:

    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. If the server has SED installed, maintain a backup of SED AK. See Manage the Self Encryption Drive Authentication Key (SED AK) for more details.
    3. Use the Lenovo XClarity Essentials OneCLI to save the system configuration to external media.
    4. Log on XCC Web GUI and backup config to external media.
    5. Download the XCC Service Data to external media.

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

  • Remove the shipping bracket or security bezel, if applicable (see Configuration guide); then, power off the server and disconnect the power cords (see Power off the server).

  • Remove the node from the enclosure or node sleeve, if applicable (see Configuration guide); then, carefully lay the node on a flat, static-protective surface.

Procedure

  1. Make preparations 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. If SED encryption is enabled, maintain a backup of SED AK. See Manage the Self Encryption Drive Authentication Key (SED AK).
    3. If applicable, export Lenovo Features on Demand activation key. See the License Management section in the XCC documentation compatible with the server at Lenovo XClarity Controller portal page.
    4. Save the system configuration to an external device with Lenovo XClarity Essentials.
    5. Save the system event log to external media.
    6. If applicable, unlock or remove any locking device that secures the top cover, such as a Kensington lock; then, remove the top cover (see Remove the top cover).
    7. Disconnect all cables from the system board and remove the components listed below:
      1. Disconnect all the drive cables from the system board; then, remove the drive cage from the node (see Remove the drive cage).
      2. Remove the front operator assembly from the node and disconnect the cable from the system board(see Remove the front operator assembly).
      3. Remove the front I/O bezel (see Remove the front I/O bezel).
      4. Remove the I/O module board and disconnect the cable from the system board (see Remove the I/O module board).
      5. Remove the bridge board (see Remove the bridge board).
      6. Remove the MicroSD card (see Remove the MicroSD card).
      7. Remove the air baffle (see Remove the air baffle).
      8. Depending on the configuration, remove the power module board or internal power supply unit (see Remove the power input board (PIB) module or Remove the internal power supply unit (AC PMB)).
      9. Remove the power input board module (see Remove the power input board (PIB) module).
      10. Remove the intrusion switch with cable (see Remove the intrusion switch with cable).
      11. Remove all the memory modules (see Remove a memory module).
        Note
        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.
      12. Remove the keylock switch with cable (see Remove the keylock switch with cable).
  2. Remove the three screws and six hex standoffs that secure the system board.
    Figure 1. Removal of the system board screws and standoffs
    Removing the system board screws
    Note

    The hex standoffs are designed to be used with a common Phillips screwdriver or flat-head screwdriver.

  3. Carefully lift up the system board to disengage it from the chassis pins; then, pull the system board toward the front of the node.
    Figure 2. Removal of the system board
    Removing the system board
  4. Pivot the system board at an angle; then, fully remove it from the chassis.
    Figure 3. Removal of the system board
    Removing the system board

　

After this task is completed

  • Install a replacement unit (see Install a system board (trained technician only)).
  • If you are instructed to return the component, follow all of the packaging instructions and use any packaging materials for shipping that are supplied to you.

　

Demo video

Watch the procedure on YouTube