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Remove a processor

This task has instructions for removing an assembled processor. This task requires a Torx T30 driver.

About this task

  • Read the following sections to ensure that you work safely.
  • Turn off the corresponding DWC tray that you are going to perform the task on.
    If Shared I/O adapters are installed, power off the auxiliary node (node 1/3/5/7/9/11) first, and then power off the primary node (node 2/4/6/8/10/12).
  • Disconnect all external cables from the enclosure.
    Use extra forces to disconnect QSFP cables if they are connected to the solution.
  • If the Intel® Xeon® Platinum 8368Q processor is installed, the supported water temperature is 2°C - 35°C (35.6°F - 95°F).

  • Each processor socket must always contain a cover. When removing or installing a processor, protect empty processor sockets with a cover.

  • Do not touch the processor socket or processor contacts. Processor-socket contacts are very fragile and easily damaged. Contaminants on the processor contacts, such as oil from your skin, can cause connection failures.

  • Do not allow the thermal grease on the processor or water loop to come in contact with anything. Contact with any surface can compromise the thermal grease, rendering it ineffective. Thermal grease can damage components, such as electrical connectors in the processor socket. Do not remove the grease cover from the cold plate until you are instructed to do so.

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

  • Before you install a new or replace a processor, update your system firmware to the latest level. See Update the firmware.

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

Prepare the following screwdrivers to ensure you can install and remove corresponding screws properly.
Screwdriver TypeScrew Type
Torx T10 head screwdriverTorx T10 screw
Torx T30 head screwdriverTorx T30 screw
Phillips #1 head screwdriver or 3/16" hex head screwdriverPhillips #1 screw
Phillips #2 head screwdriverPhillips #2 screw


  1. Make preparations for this task.
    1. Remove the tray (see Remove a DWC tray from the enclosure).

      For safety, use the lift tool to remove the tray from the rack.

    2. Remove the tray cover (see Remove the tray cover).
    3. Remove the front and the rear cross braces (14x Phillips #1 screws).
      Figure 1. Cross brace removal
      Cross brace removal
    4. Remove the DIMM comb from the affected node (see Remove a DIMM comb).
    5. Remove DIMMs from the affected node (see Remove a memory module).
    6. Remove M.2 Backplanes from the node (see Remove the M.2 backplane).
    7. Remove drive cage assemblies from the node if applicable (see Remove a drive cage assembly).
    8. Remove PCIe riser assemblies from the node if applicable (see Remove a PCIe adapter).
    9. Remove two Torx T10 screw (per node); then, slide the VR (voltage regulator) clamp plate out of the node.
      Figure 2. VR clamp plate removal
      VR clamp plate removal
    10. Remove water loop screws (13x Torx T10 screws per node) with a torque screwdriver sets to the proper torque.
      For reference, the torque required for the screws to be fully tightened/removed is 0.5-0.6 newton-meters, 4.5-5.5 inch-pounds.
      Figure 3. Water loop screws removal
      Water loop screws removal
    11. Remove the following screws to loosen the quick connect.
      • Four Torx T10 screws (per node) to loosen the quick connect.

      • Two Phillips #1 screws (per node) on the rear of the node.

      Figure 4. Screws removal
      Screws removal
    12. Orient the water loop carrier with the M.2 backplane guide pin; then, gently put the water loop carrier down and ensure it is seated firmly on the water loop.
      Figure 5. Water loop carrier installation
      Water loop carrier installation
    13. Tighten water loop carrier screws (12x Phillips #2 screws per node).
      Figure 6. Water loop carrier screws installation
      Water loop carrier screws installation
    14. Loosen processors properly.
      1. ❶ Fully loosen all Torx T30 captive screws (8x Torx T30 captive screws per node) on cold plates with a general screwdriver until they stop, following the removal sequence shown on the cold plate label.

        For reference, the torque required for the screws to be fully tightened/removed is 1.1-1.15 newton-meters, 9.8-10.2 inch-pounds.
        To prevent damage to components, make sure that you follow the indicated loosening sequence.
      2. ❷ Rotate all anti-tilt wire bails (8x anti-tilt wire bails per node) inwards to the unlocked position.

      Figure 7. Loosening processors
      Loosening processors
    15. Fold the water loop.
      1. ❶ Carefully unhook the quick connect and slide it out of the opening in the rear of the tray; then, lift the water loop up off the system board.

      2. ❷ Carefully rotate the water loop so one half is sitting on top of the other half.

      Figure 8. Folding the water loop
      Folding the water loop
  2. Remove the processor from the retainer.
    Do not touch the contacts on the processor.
    1. ❶ Lift the handle to release the processor from the retainer.
    2. ❷ Carefully hold the processor by its edges; then, lift the processor from the retainer.
    Figure 9. Processor removal
    Processor removal
  3. 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.
  4. Remove the processor retainer from the underside of the cold plate.
    The processor retainer will be discarded and replaced with a new one.
    1. ❶ Carefully release the retaining clips from the cold plate.
    2. ❷ Lift the retainer from the cold plate.
    Figure 10. Processor retainer removal
    Processor retainer removal
  5. Wipe the thermal grease from the bottom of the cold plate with an alcohol cleaning pad.
After you finish

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.

Demo video

Watch the procedure on YouTube