The heatsink is attached to the ConnectX-6 IC to dissipate the heat from the ConnectX-6 IC. It is attached either by using four spring-loaded push pins that
insert into four mounting holes or by screws.
ConnectX-6 IC has a thermal shutdown safety mechanism that automatically shuts down the ConnectX-6 card in cases of high-temperature events,
improper thermal coupling or heatsink removal.
For the required airflow (LFM) per OPN, please refer to Specifications.
For MCX653105A-HDAL and MCX653106A-HDAL cards, the heatsink is compatible with a cold plate for liquid-cooled Intel® Server System D50TNP platforms
only.
SMBus Interface
ConnectX-6 technology maintains support for manageability through a BMC. ConnectX-6 PCIe stand-up adapter can be connected to a BMC using MCTP over
SMBus protocol as if it is a standard NVIDIA PCIe stand-up adapter. For configuring the adapter for the specific manageability solution in use by the server,
please contact NVIDIA Support.
Voltage Regulators
The voltage regulator power is derived from the PCI Express edge connector 12V supply pins. These voltage supply pins feed on-board regulators that
provide the necessary power to the various components on the card.