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Leakage sensor module cable routing

Use this section to understand the cable routing of the leakage sensor module.

Attention
Strictly observe the following instructions to avoid damaging cable sockets on the system board. Any damage to the cable sockets might require replacing the system board.

  • Connect cable connectors vertically or horizontally in alignment with the orientations of the corresponding cable sockets, avoiding any tilt.

  • To disconnect cables from the system board, do as follows:

    1. Press and hold all latches, release tabs, or locks on cable connectors to release the cable connectors.

    2. Remove the cable connectors vertically or horizontally in alignment with the orientations of the corresponding cable sockets, avoiding any tilt.
      Note
      The cable connectors might look different from those in the illustration, but the removal procedure is the same.






Front and rear GPU leakage cable routing is the same for H100/H200 and B200 GPU, while NVSwitch leakage cable routing is different. Based on the location of the leakage sensor module, select the corresponding routing plan:
Note
  • Connections between connectors; 1↔1, 2↔2, 3↔3, ... n↔n
  • When routing the cables, ensure that all cables are routed appropriately through the cable guides.

H100/H200 NVSwitch leakage sensor module cable routing​

Route the NVSwitch leakage sensor module cable according to the type of power distribution board. There are two types of power distribution board. Ensure to check the silk screen before routing.

Figure 1. NVSwitch leakage sensor module cable routing for type 1 PDB
NVSwitch leakage sensor module cable routing for type 1 PDB
CableFromTo
1 NVSwitch leakage sensor module cableNVSwitch leakage sensor modulePower distribution board: NVSwitch leakage sensor module connector (LEAK CONN)
Figure 2. NVSwitch leakage sensor module cable routing for type 2 PDB
NVSwitch leakage sensor module cable routing for type 2 PDB
CableFromTo
1 NVSwitch leakage sensor module cableNVSwitch leakage sensor modulePower distribution board: NVSwitch leakage sensor module connector (LEAK1)
Note
When securing cables on the hose holder, ensure not to route the cables on top of the hoses.

B200 NVSwitch and retimer leakage sensor module cable routing​

Figure 3. B200 NVSwitch and retimer leakage sensor module cable routing
B200 NVSwitch and retimer leakage sensor module cable routing
CableFromTo
1 NVSwitch and retimer leakage sensor module cableNVSwitch and retimer leakage sensor modulePower distribution board: NVSwitch leakage sensor module connector (LEAK1)

Front GPU leakage sensor module cable routing​

Figure 4. Front GPU leakage sensor module cable routing
Front GPU leakage sensor module cable routing
CableFromTo
1 Front GPU leakage sensor module cableFront GPU leakage sensor modulePSU interposer: Front GPU leakage sensor module connector (FAN2 LEAK2)
Attention
Ensure not to place the sensor cables on the right and left ends of the manifold.

Rear GPU leakage sensor module cable routing​

Figure 5. Rear GPU leakage sensor module cable routing
Rear GPU leakage sensor module cable routing
CableFromTo
1 Rear GPU leakage sensor module cableRear GPU leakage sensor modulePSU interposer: Rear GPU leakage sensor module connector (FAN1 LEAK1)

Lenovo Processor Neptune® Core Module leakage sensor module cable routing​

Note
For better cable arrangement, it is required to install the hoses and leakage sensor module to a designated holder, and make sure that the module is secured in holder clips. Use the illustration below or Install the Lenovo Processor Neptune® Core Module for details.
Figure 6. Processor Neptune® Core Module leakage sensor module cable routing
Processor Neptune® Core Module leakage sensor module cable routing
CableFromTo
1 Processor Neptune® Core Module leakage sensor module cableProcessor Neptune® Core Module leakage sensor moduleSystem board: Processor Neptune® Core Module leakage sensor module connector (OUTLET TEMP SENSOR)
Note
Manage redundant sensor cable in the cable clip as illustrated.