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LED and State Description
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 the error
is fixed
Over-current Over-current condition
of the networking ports
Blinks until the error
is fixed
LED0 -
Link Speed
A constant Green indicates a link withthe maximum
networking speed.
A constant Yellow indicates a link withless than the
maximum networking speed
If LED0 is off, then the link has not been established.
LED1 -
Activity
A blinking Green indicates a valid link with data transfer.
If LED1 is off, then there is no activity
FRU EEPROM
FRU EEPROM allows the baseboard to identify different types of Mezzanine cards. FRU EEPROM is
accessible through SMCLK and SMDATA. FRU EEPROM address is defined according SLOT_ID0 and
SLOT_ID1 and its capacity is 4Kb.
Heat Sink Interface
A heatsink is attached to the ConnectX-6 IC in order 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.
ConnectX-6 IC has a thermal shutdown safety mechanism which automatically shuts down the
ConnectX-6 card in case of a high-temperature event, improper thermal coupling or heatsink removal.
SMBus Interface
ConnectX-6 technology maintains support for manageability through a BMC. ConnectX-6 OCP 3.0
adapter can be connected to a BMC using MCTP over SMBus or MCTP over PCIe protocols as if it is a
standard Mellanox OCP 3.0 adapter. For configuring the adapter for the specific manageability solution
in use by the server, please contact Mellanox Support.
Voltage Regulators
The voltage regulator power is derived from the OCP 3.0 edge connector 12V and 3.3V supply pins.
These voltage supply pins feed onboard regulators that provide the necessary power to the various
components on the card.
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