Install the power distribution board
Use this information to install the power distribution board.
About this task
Make sure you have the required tools listed below in hand to properly replace the component.
SD665 V3 Water Loop Service Kit (The water loop carrier in the Service Kit is reusable, it is recommended to keep it at the facility where the server operates for future replacement needs.)
SD665 V3 Water Loop Putty Pad Kit
Drive gap pad or putty pad kits according to the drives installed in the tray. See their respective replacement procedures for more information.
ConnectX series adapter putty pad kits according to the ConnectX adapter installed in the tray. See their respective replacement procedures for more information.
Screws and screwdriversPrepare the following screwdrivers to ensure you can install and remove corresponding screws properly.
Screwdriver Type Screw Type Torx T10 head screwdriver Torx T10 screw Torx T20 head screwdriver Torx T20 screw Phillips #2 head screwdriver Phillips #2 screw 3/16" hex head screwdriver M3 screw
To identify the gap pad/putty pad location and orientation, see Gap pad/Putty pad identification and location.
Before replacing the gap pad/putty pad, gently clean the interface plate or the hardware surface with an alcohol cleaning pad.
Hold the gap pad/putty pad carefully to avoid deformation. Make sure no screw hole or opening is blocked by the gap pad/putty pad material.
Do not use expired putty pad. Check the expiry date on putty pad package. If the putty pads are expired, acquire new ones to properly replace them.
Go to Drivers and Software download website for ThinkSystem SD665 V3 to see the latest firmware and driver updates for your server.
Go to Update the firmware for more information on firmware updating tools.
- Install the power distribution board.
- Tilt the power distribution board and align it with the hole; then, slide it into place.
- Gently push the power distribution board connector to ensure it is connected to the system board.
- Fasten the five M3 screws with a 3/16" hex head screwdriver.
Use a 3/16" hex head screwdriver to ensure the proper removal and installation.Figure 1. Power distribution board installation
- Apply the thermal grease on the top of the processor with syringe by forming four uniformly spaced dots, while each dot consists of about 0.1 ml of thermal greaseNoteCarefully place the processor and retainer on a flat surface with the processor-contact side down.Figure 2. Thermal grease application
- Check the gap pads on the bottom side and top side of the water loop, if any of them are damaged, missing, or fallen off, replace them with the new ones. Figure 3. Water loop gap pads (bottom side)Figure 4. Water loop gap pads (top side)
Make sure to follow Gap pad/putty pad replacement guidelines.
- Replace the putty pads on the water loop with new ones.Figure 5. Water loop putty pads
Make sure to follow Gap pad/putty pad replacement guidelines.
- Carefully rotate the top side of the water loop, position the water loop on the 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.AttentionMake sure to align the water loop with the three guide pins on the right side compute node.Figure 6. Guide pins on the right side compute nodeAttention
Figure 7. Water loop installation
Slightly lift the water loop, then rotate it.
Do not tilt the water loop. Keep the water loop horizontal with the tray.
Install the water loop to the tray
- Install processor cold plate screws (12x Torx T20 screws per node). Follow the screw sequence specified on the processor cold plate label and tighten the screws with a general screwdriver. Fully tighten each screw; then, proceed to the next screw.NoteFor reference, the torque required for the screws to be fully tightened/removed is 1.12-1.46 newton-meters, 10-13 inch-poundsFigure 8. Processor cold plate installationFully tighten each screw the order below:
Processor Screw sequence A B C D
- Loosen water loop carrier screws (12x Phillips #2 screws per node).NoteThe screw holes on the rear of the carrier are marked with
L and R. Select screw holes marked as L when the carrier is on the left node, and R for the right node.Figure 9. Loosening water loop carrier screws
- Carefully lift the water loop carrier up and away from the water loop.Figure 10. Water loop carrier removal
- Install water loop screws and quick connect screws (14x Torx T10 screws per node) with a torque screwdriver set to the proper torque.Note
Figure 11. VR cold plate screws with washersFigure 12. Water loop screws and quick connect screws installation
For reference, the torque required for the screws to be fully tightened/removed is 5.0+/- 0.5 lbf-in, 0.55+/- 0.05 N-M.
Install the 1 VR cold plate screws (x2) with washers.
Installing a new water loop:
Use the washers previously removed from the defect water loop. If there were no washers on the VR cold plate originally, use the washers in VR Conduction Plate 12.4 (including washers).
Reinstalling the water loop:
You may not be installing a new water loop, but is reinstalling the water loop after replacing the system board, processor, or power distribution board. In this case, use the washers previously removed from the water loop. If there were no washers on the VR cold plate originally, it is not required to install VR cold plate with washers.
- Install the five Torx T10 screws to secure the quick connect.Figure 13. Quick connect screw installation
Install the PCIe riser assembly. See Install a PCIe riser assembly (ConnectX-6) , Install a PCIe riser assembly (ConnectX-7 NDR 200), or Install a PCIe riser assembly (ConnectX-7 NDR 400).
Install the drive cage. See Install a drive cage assembly.
Install the M.2 backplane assembly. See Install the M.2 backplane assembly.
Install the cross braces. See Install the cross braces.
Install the tray cover. See Install the tray cover.
Install the tray into the enclosure. See Install a DWC tray in the enclosure.
- Connect all required external cables to the solution.NoteUse extra force to connect QSFP cables to the solution.
Check the power LED on each node to make sure it changes from fast blink to slow blink to indicate all nodes are ready to be powered on.