NVIDIA ConnectX-7 Adapter Cards User Manual

Monitoring

The adapter card incorporates the ConnectX IC, which operates in the range of temperatures between 0°C and 105°C.

Three thermal threshold definitions impact the overall system operation state and are designed to ensure timely application of server-level corrective actions, such as increased cooling, to keep the device temperature in the working range:

  • Warning – 97°C (default) When the device crosses this threshold, an Over-Temperature Warning message is issued by the management SW. This may be used to increase the cooling of the system (e.g. - by increased Fans RPM). Note that this temperature threshold does not require nor lead to any action by hardware (such as adapter card shutdown).

  • Critical – 102°C (default): When the device crosses this threshold, an Over-Temperature Critical message is issued by the management SW.

  • Fatal – 110°C: Upon reaching this temperature, an Over-temperature Fatal message is issued. If the device continues to heat-up, the FW will automatically shut down upon reaching 110°C threshold. Specification functionality is no longer guaranteed, though there is no risk of permanent damage.

The heatsink is attached to the ConnectX-7 IC to dissipate the heat from the ConnectX-7 IC. It is attached by spring-loaded screws.

ConnectX-7 IC has a thermal shutdown safety mechanism that automatically shuts down the ConnectX-7 card in cases of high-temperature events, improper thermal coupling, or heatsink removal.

For the required airflow (LFM) per OPN, please refer to the Specifications chapter.

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