Remove the Lenovo Processor Neptune® Core Module

Follow the instructions in this section to remove the Processor Neptune® Core Module. The procedure must be executed by a trained technician.

About this task

Safety information for leakage sensor module cable

S011

CAUTION

Sharp edges, corners, or joints nearby.

Attention

• Read Installation Guidelines and Safety inspection checklist to make sure that you work safely.

• Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

• Depending on the specific configuration, the hardware might look slightly different from the illustrations in this section.

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

Torque screwdriver type list	Screw Type
Torx T20 head screwdriver	Torx T20 screw

Procedure

1. Make preparations for this task.
   1. Remove the quick connect plugs from the manifolds. See Remove the manifold (in-rack system) or Remove the manifold (in-row system).
   2. Power off the node (see Power off the node); then, disconnect all external cables from the node.
   3. Remove the node from the chassis (see Remove a node from the chassis); then, carefully lay the node on a flat, static-protective surface, orienting the node with the front toward you.
      Note

      • When removing the node, note the node tray number and make sure to install the node in the same tray from which it was removed. Reinstalling the node into a different tray requires the node to be reconfigured.
      • For safety, make sure to hold the node with both hands when lifting the node.
   4. Remove the top cover (see Remove the top cover).
   5. Disconnect the leakage sensor module cable of the Processor Neptune® Core Module from the connector on the system board. See Leakage sensor module cable routing.
2. Remove the rubber air baffle from the heat sink.
   Figure 1. Removing rubber air baffle
   
   
3. Disengage the leakage sensor module.
   1. Push the holder latches to both sides to unlock the module.
   2. Disengage the leakage sensor module from the holder.
   Figure 2. Disengage the leakage sensor module
   
   
4. Remove the first hose cover.
   1. Unfasten the two screws that secure the hose cover to the chassis.
   2. Grasp and remove the hose cover from the chassis.
   Figure 3. Removing hose cover
   
   
5. Remove the second hose cover.
   1. Unfasten the two screws that secure the hose cover to the chassis.
   2. Grasp and remove the hose cover from the chassis.
   Figure 4. Removing hose cover
   
   
6. Fully loosen all the screws on the cold plate in the removal sequence shown on the label.
   Note

   • Do not touch the contacts on the bottom of the processor.

   • Keep the processor socket clean from any object to prevent possible damages.

   • If necessary, use a flat screwdriver to gently separate the cold plate and the CPU from the corner of the cold plate. Ensure not the damage the CPU or the cold plate.

   Figure 5. Removing a cold plate
   
   
7. Remove the Processor Neptune® Core Module from the chassis.
   1. Disengage the hoses from the hose holders.
      Figure 6. Disengaging the hoses
      
      
   2. Remove the Processor Neptune® Core Module from the chassis.
      Figure 7. Removing the module
      
      
8. Remove the processor.
   1. Use a Torx T20 screwdriver to loosen the screw.
   2. Slightly lift up the retention frame in the direction shown.
   3. Slightly lift up the rail frame in the direction shown. The processor in the rail frame is spring-loaded.
   4. Hold the blue tab of the processor carrier and slide the processor carrier out of the rail frame.
   Figure 8. Removing a processor