Replacing the system board

Prerequisites

Before you perform this procedure, make sure that you have the following items available:

  • T-15 screwdriver (for system board screws)
  • T-20 screwdriver (processor and heatsink screws)
  • Thermal grease (Spare part number: 777298-001)
Procedure
  1. Install the spare system board.
    1. Install the system board handle on the spare system board.
    2. Place the spare system board in the chassis, holding the handle.
    3. Remove the handle from the system board.
    4. Install the system board screws.
  2. Install the processor:
    1. Hold the processor by its carrier handle and slide the processor into the rail frame until it engages with a click sound.
    2. Remove the pin field cover cap.
      CAUTION:

      To prevent the risk of damaging the pins in the processor socket, do not reinstall the pin field cover cap after removing it.

    3. Hold the lift tabs near the front end of the rail frame, and then pivot the rail frame to the closed position.

      A click sound indicates that the rail frame is properly engaged.


      Installing the processor
  3. Apply new thermal grease to the processor in the pattern shown in the following image. Use the full contents of the thermal grease syringe.

    Thermal grease application pattern

  4. Install the heatsink:
    CAUTION:

    To prevent mechanical damage or depositing oil on your hands or other contaminant to the heatsink contact surface, hold the heatsink only by the edge of its base plate. Do not touch the heatsink fins.

    CAUTION:

    To prevent thermal failure or component damage, do not move the heatsink once the bottom of its base plate touches the top of the processor. Excessive heatsink movement can cause the thermal grease to smear and become uneven. Voids in the compound can adversely impact the transfer of heat away from the processor.

    CAUTION:

    Heatsink screws must be tightened and loosened in alternating sequence. Do not overtighten the screws as this might damage the system board or the processor socket.

    1. Position the heatsink on top of the processor, ensuring that it is properly seated before securing the screws.
    2. Use a T-20 Torx screwdriver to tighten the captive screws in the sequence specified on the heatsink label.

      When using a torque wrench to tighten the screws, apply a torque of 1.58 N-m (14 lbf-in).


    Installing the heatsink
  5. Install all the components removed from the system board.
  6. Install the access panel.
  7. Install the server into the rack.
  8. Connect each power cord to the server.
  9. Connect each power cord to the power source.
  10. Power up the server.
  11. If removed, install the front bezel.
  12. Ensure all firmware, including option cards and embedded devices, is updated to the same versions to ensure that the latest drivers are being used.
  13. Re-enter any Secure Boot Keys that were previously added in the Secure Boot configuration.
  14. Re-enter the server serial number and the product ID.