Install the water loop

Use this information to install the water loop in the SD650 V3 tray.

Procedure

1. Attention

   Make sure that the retaining clips on all memory module connectors are in the locked position.
2. Follow the following steps if you are replacing processors:
   1. If there is any old thermal grease on the processor and the cold plate, gently clean the top of the processor and the cold plate using an alcohol cleaning pad.
   2. Remove the processor identification label from the water loop and replace it with the new label that comes with the replacement processor. If you are unable to remove the label and place it on the new water loop, or if the label is damaged during transfer, write the processor serial number from the processor identification label on the new water loop in the same location as the label would be placed using a permanent marker.
   3. Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced dots, while each dot consists of about 0.1 ml of thermal grease
      Note

      Carefully place the processor and retainer on a flat surface with the processor-contact side down.

      Figure 1. Thermal grease application
      
      
3. Install processor retainers onto processor if needed.
   1. Align the triangular mark on the processor retainer with the triangular mark on the processor corner edge.
   2. (Intel® Xeon® CPU Max only) Make sure the slot on the TIM breaking cam is vertical. See Figure 4.
   3. Gently place the processor retainer on the processor; then, carefully press the four sides of the processor retainer to secure the processor.

      Figure 2. Installing a processor retainer

      Figure 3. Installing a Intel® Xeon® CPU Max processor retainer 1 TIM breaking cam

   4. (Intel® Xeon® CPU Max only) After installing the retainer onto processor, make sure the slot on the TIM breaking cam is vertical.
      Figure 4. TIM breaking cam on processor retainer

      1 TIM breaking cam

      
      
      
4. When removing the water loop from the package box, make sure to hold the touch points marked in grey in the illustration below.
   Attention

   Holding the water loop anywhere other than the touch points may cause damage to it.

   Figure 5. Touching points when removing water loop from package box

   Top image	Isometric view of water loop
   Bottom image	Top view of the water loop

   
   
   
5. Remove two plastic grease covers if needed.
   1. Use a pair of scissors to cut off the tape.
   2. Remove plastic grease covers from the underside of water loop cold plates.
   Note

   The right node is shown as example. Remove plastic grease covers if needed when installing processor in either node.

   Figure 6. Plastic grease covers removal
   
   
6. Align the triangular marks on the processor retainers with the triangular slots on the underside of the water loop cold plate; then, attach the processors to the underside of the water loop cold plate by inserting the processor retainer posts and clips features into the openings at the four corners of the cold plate.
   Figure 7. Processor installation
   
   
7. Rotate all anti-tilt wire bails (8x anti-tilt wire bails per node) outwards to the unlocked position.
   Figure 8. Processor unlocked position
   
   
8. Check the gap pads on the water loop, if any of them are damaged or detached, replace them with the new ones.
   Figure 9. Water loop gap pads
   
   

Make sure to follow Gap pad/putty pad replacement guidelines.

9. Install the one side of the water loop.
   1. Carefully hold the water loop with both hands and flip it.
   2. Carefully position the water loop onto the two guide pins near the rear of the node; then, gently lower down the water loop and ensure it is seated firmly on the system board.
   Figure 10. Water loop carrier installation
   
   
10. Repeat step 2 to step 5 to install processors to the other side of the water loop.
11. Repeat step 6 to make sure gap pads are securely attached to water loop.
12. Fully loosen two captive thumbscrews located at each end of the water loop carrier.
    Figure 11. Loosening captive thumbscrews
    
    
13. Unfold and install the other side of the water loop as shown.
    Figure 12. Unfolding water loop
    
    
14. Ensure the processors are secured properly.

    1. Rotate anti-tilt wire bails (16x anti-tilt wire bails for two nodes) outwards to the locked position.

    2. Fully tighten all Torx T30 captive screws (16x Torx T30 captive screws for two nodes) on cold plates in the installation 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 10+/- 2.0 lbf-in, 1.1+/- 0.2 N-m.
       Attention

       To prevent damage to components, make sure that you follow the indicated tightening sequence.
       Figure 13. Securing Torx T30 captive screws
       
       
15. Loosen water loop carrier screws (24x Phillips #2 screws for two nodes).
    Figure 14. Loosening water loop carrier screws
    
    
16. Carefully lift each water loop carrier up and away from the water loop one at a time.
    Figure 15. Water loop carrier removal
    
    
17. Install water loop screws (18x 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 5.0+/- 0.5 lbf-in, 0.55+/- 0.05 N-M.

    Figure 16. Water loop screws installation
    
    
18. Install the following screws to secure the quick connect.

    • Four Torx T10 screws to secure the quick connect.

    • Ten Torx T10 screws on the rear of the node.

    Figure 17. Quick connect screw installation
    
    
19. Install two VR clamp plates into the nodes and install Torx T10 screws (4x Torx T10 screws for two nodes).
    Figure 18. VR clamp plate installation