Install the Lenovo Compute Complex Neptune Core Module

Follow the instructions in this section to install the Compute Complex Neptune Core Module.

Important

• This task must be operated by trained technicians that are certified by Lenovo Service. Do not attempt to remove or install the part without proper training and qualification.

• Contact Lenovo Professional Services team for help when installing the part for the first time.

About this task

S011

CAUTION

Sharp edges, corners, or joints nearby.

Attention

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

• Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.

• 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.

CAUTION

When removing a new Compute Complex Neptune Core Module from the shipping box, lift out the cold plate assembly with the shipping tray attached to prevent thermal grease on the cold plate assembly from damage.

Torque screwdriver type list	Screw Type
Torx T30 head screwdriver	Torx T30 screw
#2 Phillips screwdriver	#2 Phillips screw

Procedure

1. Install the hose holder to the chassis.
   Figure 1. Installing the hose holder
   

   

   
   
   1. Remove the screws on the system board assembly if needed.
   2. Align the screw holes in the hose holder with the screw holes on the system board assembly and the guiding pins on the holder with the holes on the rear wall.
   3. Install the screws to secure the hose holder to the system board assembly.
2. (Optional) To install a new module on the current processor, make sure you have an alcohol cleaning pad available.
   Attention

   If there is any old thermal grease on the processors, gently clean the top of the processors with an alcohol cleaning pad.
3. Install the processor to the Compute Complex Neptune Core Module. For more information, see Install a processor and heat sink.
   Figure 2. Installing the processor
   
   

   1. Align the triangular mark on the cold plate assembly label with the triangular mark on the processor carrier and processor.

   2. Install the processor-carrier onto the module.

   3. Press the carrier into place until the clips at all four corners engage.

4. (Optional) To install a new module, peel off the release paper of thermal pads.
   Note

   If the thermal pads are stained, damaged or lost, apply for the new thermal pad FRUs.

   Figure 3. Peeling off the release paper
   
   
5. Install the processor-module to the system board assembly.
   Figure 4. Installing the module
   
   

   1. Rotate the anti-tilt wire bails inward.

   2. Align the triangular mark and four Torx T30 nuts on the cold plate assembly with the triangular mark and threaded posts of the processor socket; then, insert the cold plate assembly into the processor socket.

   3. Rotate the anti-tilt wire bails outward until they engage with the hooks in the socket.

6. Remove the shipping tray from the module.
   Figure 5. Removing the shipping tray
   
   
   1. Loosen the screws that secure the shipping tray.
   2. Separate the shipping tray from the module.
7. Tighten the six screws and eight Torx T30 nuts on the module.
   Note

   Users should tighten the Torx T30 nuts in the installation sequence shown on the cold plate assembly. Tighten the screws until they stop; then, visually inspect to make sure that there is no gap between the screw shoulder beneath the cold plate assembly and the processor socket. (For reference, the torque required for the fasteners to fully tighten is 0.9-1.3 newton-meters, 8-12 inch-pounds.)

   Figure 6. Tightening screws
   
   
8. Place the hoses and the leakage detection sensor module on the hose holder.
   Figure 7. Placing the hoses and leakage detection sensor module
   

   

   
   

   Figure 8. Installation details

   1 Outlet hose 2 Inlet hose 3 Leakage detection sensor module Note For leakage detection sensor module working status, see LED on the leakage detection sensor module.

9. Connect the cable of the leakage detection sensor module to the connector on the system board assembly. See Internal cable routing.
10. Install the 3FH riser cage.
    Figure 9. Installing the 3FH riser cage
    

    

    
    
    1. Lower the riser cage into the chassis.
    2. Tighten the screw to secure the riser cage.
11. Install the rear drive cage assembly if needed. See Rear drive cage replacement.
12. Install the air baffle or middle drive cage. See Install the air baffle or Install the middle drive backplane and drive cage.
13. Install the top cover. See Install the top cover.
14. Install the server into the rack. See Server replacement.
15. Install the quick connect plugs to the manifolds. See Install the manifold (in-rack system) or Install the manifold (in-row system).