Remove a processor

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

Procedure

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

      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
      
      
   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
      
      
   10. Remove 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.

       Figure 3. 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
       
       
   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
       
       
   13. Tighten water loop carrier screws (12x Phillips #2 screws per node).
       Figure 6. 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.

          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 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
       
       
   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
       
       
2. Remove the processor from the retainer.
   Note

   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
   
   
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.
   Note

   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
   
   
5. Wipe the thermal grease from the bottom of the cold plate with an alcohol cleaning pad.