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 it without proper training and qualification.
Contact Lenovo Professional Services team for help when installing the part for the first time.
About this task
Safety information for leakage detection sensor module
Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
Keep static-sensitive parts in their static-protective packages until installation to prevent exposure to static electricity. Handle the parts with an electrostatic-discharge wrist strap or other grounding systems. Place the parts on a static-protective surface.
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.
Prepare the following screwdrivers to ensure you can install and remove the corresponding screws properly.
Torque screwdriver type list
Screw Type
Torx T30 head screwdriver
Torx T30 screw
#2 Phillips screwdriver
#2 Phillips screw
Procedure
Prepare your server.
Install the hose holder to the chassis.
Figure 1. Installing the hose holder
Loosen the screw on the system I/O board and processor board.
Align the screw holes on the hose holder to the system I/O board and processor board. And align the guiding pin of the holder to the rear wall.
Tighten the screw to secure the holder to the system I/O board and processor board.
Open the hose holder cover.
Figure 2. Opening the holder cover
Loosen the thumbscrew on the hose holder.
Open the latch.
(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.
Align the triangular mark on the cold plate assembly label with the triangular mark on the processor carrier and processor.
Install the processor-carrier onto the module.
Press the carrier into place until the clips at all four corners engage.
(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 4. Peeling off the release paper
Install the processor-module to the system board assembly.
Figure 5. Installing the module
Rotate the anti-tilt wire bails inward.
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.
Rotate the anti-tilt wire bails outward until they engage with the hooks in the socket.
Remove the shipping tray from the module.
Figure 6. Removing the shipping tray
Loosen the screws that secure the shipping tray.
Separate the shipping tray from the module.
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 7. Tightening screws
Place the hoses, the leakage detection sensor module and the cable.
Figure 8. Placing the hoses and module
Note
Figure 9. Installation details
The hoses: place the middle part of the hose against the blue latch; and insert the 1 outlet and 2 inlet hoses into the holder.
The leakage detection sensor module 3: Insert the module to the holder beside the hoses. And make sure that the side with a status LED is up and route the cable as illustrated above.
Note
Do not install the leakage detection sensor module cable into the holder clips; otherwise the cable might be damaged.