Remove a processor

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

About this task

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.

• 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.

• 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.

Note

Ensure you have SD650 V3 Neptune DWC Waterloop Service Kit in hand to install components.

Prepare the following screwdrivers to ensure you can install and remove corresponding screws properly.

Screwdriver Type	Screw Type
Torx T10 head screwdriver	Torx T10 screw
Torx T30 head screwdriver	Torx T30 screw
Phillips #1 head screwdriver	Phillips #1 screw
Phillips #2 head screwdriver	Phillips #2 screw

Figure 1. Processor locations

Watch the procedure

• A video of this procedure is available at YouTube.

Procedure

Note

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

1. Make preparations for this task.
   1. Remove the tray from the enclosure. See Remove a DWC tray from the enclosure.
   2. Remove the tray cover. See Remove the tray cover.
   3. Remove the cross braces. See Remove the cross braces.
   4. Remove the DIMM comb. See Remove a DIMM comb.
   5. Remove memory modules. See Remove a memory module.
   6. Remove the M.2 backplane assembly. See Remove the M.2 backplane assembly.
   7. Remove the drive cage. See Remove a drive cage assembly.
   8. Remove the PCIe riser assembly. Depending on your configuration, see Remove a PCIe riser assembly (ConnectX-6), PCIe riser assembly replacement (ConnectX-7 NDR 200), or Remove a PCIe riser assembly (ConnectX-7 NDR 400).
2. Remove two Torx T10 screws (per node); then, remove the VR (voltage regulator) clamp plate out of the node.
   Figure 2. VR clamp plate removal
   
   
3. Remove water loop screws (9x Torx T10 screws per node) with a torque screwdriver set to the proper torque.
   Note

   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 screw removal
   
   
4. Remove the following screws to loosen the quick connect.

   • Two Torx T10 screws (per node) on the quick connect.

   • Five Torx T10 screws (per node) on the rear of the node.

   Figure 4. Quick connect screw removal
   
   
5. Orient the water loop carrier with the 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
   
   
6. Tighten water loop carrier screws (12x Phillips #2 screws per node).
   Figure 6. Water loop carrier screws installation
   
   
7. Loosen processors properly.

   1. Fully loosen all Torx T30 captive screws (8x Torx T30 captive screws per node) on cold plates in the removal sequence shown on the cold plate label (with a torque screwdriver set to the proper torque).

      Note

      For reference, the torque required for the screws to be fully tightened/removed is 0.9-1.3 newton-meters, 8-12 inch-pounds.

      Attention

      To prevent damage to components, make sure that you follow the indicated loosening sequence.

   2. Rotate all anti-tilt wire bails (8x anti-tilt wire bails per node) inwards to the unlocked position.

   Figure 7. Loosening processors
   
   
8. Carefully rotate the water loop so one half is sitting on top of the other half.
   Figure 8. Folding the water loop
   
   
9. Remove the processor from the retainer. This process differs by processor SKU. Check the processor SKU and follow the applicable procedure.
   Note

   Do not touch the contacts on the processor.

   For non Intel® Xeon® CPU Max processor

   1. Lift the handle to release the processor from the retainer.

   2. Carefully hold the processor by its edges; then, lift the processor from the retainer.

      Figure 9. Processor removal
      
      

   For Intel® Xeon® CPU Max processor

   1. Insert a flat head screwdriver into the TIM breaking cam on the retainer; then, slightly rotate the flat head screwdriver to release the processor from the retainer.

   2. Carefully hold the processor by its edges; then, lift the processor from the retainer.

      Figure 10. Processor removal (Intel® Xeon® CPU Max processor)
      
      

      1 TIM breaking cam

10. 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.
11. Remove the processor retainer from the underside of the cold plate.
    Note

    The processor retainer will be discarded and replaced with a new one.
    1. Carefully release the retaining clips from the cold plate.
    2. Lift the retainer from the cold plate.
    Figure 11. Processor retainer removal
    
    
12. 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.