Nvidia ConnectX-6 - Heatsink Interface; Smbus Interface; Voltage Regulators

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Error
4Hz blinking Yellow Indicates an error with the link. The
error can be one of the following:
Error Type Description LED Behavior
I
2
C
I
2
C access to the
networking ports
fails
Blinks until error
is fixed
Over-current
Over-current
condition of the
networking ports
Blinks until error
is fixed
Solid amber Indicates an active link
Solid green Indicates a valid (data activity) link with no active traffic
Blinking green Indicates a valid link with active traffic
Heatsink Interface
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.