Install the OSFP module

Use this information to install the OSFP module.

About this task

Required tools

Make sure that you have the SD665-N V3 OSFP Putty Pad Kit to properly replace the component.

Attention

Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
Turn off the corresponding DWC tray that you are going to perform the task on.

Important

Gap pad/putty pad replacement guidelines

To identify the gap pad/putty pad location and orientation, see:
- Required Tools list in the following section.
- 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.

Firmware and driver download: You might need to update the firmware or driver after replacing a component.

Go to Drivers and Software download website for ThinkSystem SD665-N V3 to see the latest firmware and driver updates for your server.
Go to Update the firmware for more information on firmware updating tools.

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

Screw Type/Usage	Screwdriver Type
Hex screw	4.5 mm hex head screwdriver

Procedure

Replace the putty pad on the OSFP module conduction plate with a new one. Make sure to follow Gap pad/putty pad replacement guidelines.
Attention
Putty pad cannot be reused. Whenever the water loop is removed, putty pads must be replaced with new ones before reinstalling the water loop.
Figure 1. Replacing the putty pad on the OSFP module
Connect the two OSFP module power cables. Connect power cable labeled as P1 to Power connector 1 on the OSFP module, and P2 to Power connector 2.
OSFP module connects to Power cable
1 Power connector 1 2 P1
4 Power connector 2 4 P2
Figure 2. OSFP module power cables installation
Install the OSFP module.
1. Align the OSFP module to the guide pins, and install the OSFP module to the compute node.
2. Tighten the three screws to secure the OSFP module to the compute node.
Figure 3. OSFP module installation

Connect the OSFP module cables to the network board on the GPU node.

CAUTION

Hold the cable connector at 45 degree angle when inserting it into the port.
Have extremely precaution when reseating the connectors that have a 45 degree label on them as they are fragile and will get damage if not installed in the correct 45 degree angle.

Figure 4. Connecting the OSFP module cables to the network board

Cable	From OSFP module connectors	To Network board connectors
`1` Network cable (long)	Network connector (near GPU node)	Port 0
`2` Power cable	Power connector P1	OOB port 0
`3` Power cable	Power connector P2	OOB port 1 (on network board) and power connector (on carrier board)
`4` Network cable (short)	Network connector (near Compute node)	Port 1

Press the network cable connector to properly connect the cable plug to the connector. Make sure the latch is fully engaged to the connector.
Figure 5. Pressing network cable plug
Connect MCIO cables to the carrier board. Carrier board cable routing is different for one-processor configuration and two-processor configuration, see the following for details.
One-processor configuration: connect all MCIO cables to the carrier board
Figure 6. One-processor configuration—Connecting all MCIO cables to the carrier board

Cable index From (carrier board in GPU node) To (system board in compute node)
1 MCIO 1 cable PCIe 4
2 MCIO 2 cable
3 MCIO 3 cable PCIe 3
4 MCIO 4 cable
Two-processors configuration: connect MCIO 1, MCIO 2, and MCIO 3 cables
Figure 7. Two-processor configuration—Connecting MCIO 2, MCIO 3, and MCIO 4 cable to the GPU node
Make sure to follow the sequence 3 → 1 → 2.

Cable index From (carrier board in GPU node) To (system board in compute node)
1 MCIO 2 cable PCIe 5
2 MCIO 3 cable PCIe 4
3 MCIO 4 cable PCIe 3
Connect the drive cable.
Figure 8. Connecting drive cage cables

Figure 9. Connecting 7mm drive cage cables

Figure 10. E3.S drives cable routing

Cable index	From (carrier board in GPU node)	To (system board in compute node)
`1`	MCIO 1 cable	PCIe 4
`2`	MCIO 2 cable
`3`	MCIO 3 cable	PCIe 3
`4`	MCIO 4 cable

Cable index	From (carrier board in GPU node)	To (system board in compute node)
`1`	MCIO 2 cable	PCIe 5
`2`	MCIO 3 cable	PCIe 4
`3`	MCIO 4 cable	PCIe 3

After you finish

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.
Note
Use 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.

Demo video

Watch the procedure on YouTube

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