Install the water loop in SD650 V2 tray

Use this information to install the water loop in SD650 V2 tray.

Procedure

1. 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 approximately 0.65 g of the new thermal grease to the center of the processor top. If you have cleaned the top of the processor with an alcohol cleaning pad, make sure to apply the new thermal grease after the alcohol has fully evaporated.
      Note

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

      Figure 1. Thermal grease application
      
      
2. Install processor retainers onto processors if needed.
   1. Align the triangular mark on the processor retainer with the triangular mark on the processor corner edge.
   2. 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
      
      
3. Remove two plastic grease covers if needed.
   1. ❶ Use a scissors to cut off tapes.
   2. ❷ Remove plastic grease covers from underside of water loop cold plates.
      Figure 3. Plastic grease covers removal
      
      
4. Align the triangular mark on the processor retainer with the triangular slot on the underside of the water loop cold plate; then, attach the processor 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 4. Processor installation
   
   
5. Check the gap pads on the water loop, if any of them are damaged or missing, replace them with the new ones.
   Figure 5. Water loop - Gap pads
   
   
6. Rotate eight anti-tilt wire bails outwards to the unlocked position.
   Figure 6. Processor - unlocked position
   
   
7. Fully loosen two captive thumbscrews located at each end of the water loop carrier.
   Figure 7. Loosening captive thumbscrews
   
   
8. Install the one side of the water loop.
   1. ❶ Carefully hold the water loop and flip it.
   2. ❷ Carefully position the water loop on two guide pins near the rear of the node; then, carefully insert the quick connect tip through the opening in the rear of the tray.
   3. ❸ While holding the water loop with both hands, gently lower down the water loop.
   4. ❹ Gently put the water loop down and ensure it is seated firmly on the system board.
   Figure 8. Water loop carrier installation
   
   
9. Fully loosen two captive thumbscrews located at each end of the water loop carrier.
   Figure 9. Loosening captive thumbscrews
   
   
10. Install the other side of the water loop.
    1. ❶ Carefully lift top side of the water loop and rotate it to the other half of the tray.
    2. ❷ Carefully insert the quick connect into the tray opening as shown.
    3. ❸ Carefully position the water loop on two guide pins near the rear of the node; then, gently put the water loop down and ensure it is firmly seated on the system board.
    Figure 10. Water loop rotation
    
    
11. Ensure the processors are secured properly.

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

    2. ❷ Fully tighten all Torx T30 captive screws (16x Torx T30 captive screws for two nodes) on cold plates with a general screwdriver until they stop, following the installation sequence shown on the cold plate label.

       Note

       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.
       Attention

       To prevent damage to components, make sure that you follow the indicated tightening sequence.
       Figure 11. Processors installation
       
       
12. Loosen water loop carrier screws (24x Phillips #2 screws for two nodes).
    Figure 12. Loosening water loop carrier screws
    
    
13. Carefully lift each water loop carrier up and away from the water loop one at a time.
    Figure 13. Water loop carrier removal
    
    
14. Install the water loop screws (13x Torx T10 screws per node) with a torque screwdriver sets 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.
    • The screw holes that are circled in blue are meant for 9.5 mm screws, while the others that are circled in red are meant for 8.0 mm ones.

    Figure 14. Water loop screws installation
    
    
15. Install the following screws.

    • Eight Torx T10 screws to secure the quick connect.

    • Four Phillips #1 screws on the rear of the node.

    Figure 15. Screws installation
    
    
16. Slide two VR clamp plates into the nodes and install Torx T10 screws (4x Torx T10 screw for two nodes).
    Figure 16. VR clamp plate installation