Remove a processor

This task has instructions for removing an assembled processor. This task requires Torx 10 driver, T20 driver, Philips #1 driver, and Philips #2 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 SD665 V3 Neptune DWC Water Loop Service Kit in hand to perform this task.

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 T20 head screwdriver	Torx T20 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), Remove a PCIe riser assembly (ConnectX-7 NDR 200), or Remove a PCIe riser assembly (ConnectX-7 NDR 400).
2. Remove the five screws to loosen the quick connect.
   Figure 2. Quick connect screw removal
   
   
3. Remove water loop screws and quick connect screws (14x 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. 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 4. Water loop carrier installation
   
   
5. Tighten water loop carrier screws (12x Phillips #2 screws per node).
   Note

   The screw holes on the rear of the carrier are marked with L and R. Select screw holes marked as L when the carrier is on the left node, and R for the right node.

   Figure 5. Water loop carrier screws installation
   
   
6. Remove processor cold plate screws (12x Torx T20 screws per node). Follow the screw sequence specified on the processor cold plate label and loosen the screws with a torque screwdriver set to the proper torque. Fully loosen each screw; then, proceed to the next screw.
   Note

   For reference, the torque required for the screws to be fully tightened/removed is 1.12-1.46 newton-meters, 10-13 inch-pounds

   Figure 6. Processor cold plate label

   Fully loosen each screw in this order: 6 > 5 > 4 > 3 > 2 > 1

   
   
   

   Figure 7. Processor cold plate removal
   
   
7. Rotate the latches on the water loop carrier to separate the processor cold plates from processors.
   Figure 8. Separate water loop from processor
   
   
8. Carefully rotate the water loop so one half is sitting on top of the other half.
   Figure 9. Folding the water loop
   
   
9. Remove the processor
   1. Use a Torx T20 screwdriver to loosen the retention frame screw; then, rotate the retention frame to the open position.n,
   2. Slightly lift up the rail frame in the direction shown. The processor in the rail frame is spring-loaded.
   3. Hold the blue tab of the processor carrier and slide the processor carrier out of the rail frame.
   Figure 10. Processor removal
   
   
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. 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.