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BlueField-3 PTP solution allows you to run any PTP stack on your host.
With respect to testing and measurements, selected BlueField-3 boards allow you to use the PPS-out
signal from the onboard MMCX RA connecter. The BlueField-3 board also allow measuring PTP in
scale with the PPS-In signal. The PTP HW clock on the Network adapter is sampled on each PPS-In
signal, and the timestamp is sent to the SW.
3.3.11 External PCIe Power Supply Connector
Applies to following DPUs only. The external ATX power cable is not supplied with the DPU
package; however, this is a standard cable usually available in servers.
•
B3220 DPUs: 900-9D3B6-00CV-AA0 and 900-9D3B6-00SV-AA0
•
B3240 DPUs: 900-9D3B6-00CN-AB0 and 900-9D3B6-00SN-AB0
•
B3210 DPUs: 900-9D3B6-00CC-AA0 and 900-9D3B6-00SC-AA0
•
B3210E DPUs: 900-9D3B6-00CC-EA0 and 900-9D3B6-00SC-EA0
The FHHL P-Series DPUs incorporate an external 12V power connection through an ATX 8-pin PCI
connector (Molex 455860005). The DPU includes a special circuitry that provides current balancing
between the two power supplies; the 12V from the PCIe x16 standard slot and the 12V from the ATX
8-pin connector. Since the power provided by the PCIe golden fingers is limited to 75W, a total
maximum of up to 150W is enabled through the ATX 8-pin connector and the PCIe x16 golden fingers
(the ATX 8-pin connector draws its power from the server and can supply up to 150W, per ATX
specifications).
The maximum power consumption which does not exceed 150W, is in accordance with the mode of
operation of the DPU, and is split between the two power sources as follows:
•
Up to 66W from the PCIe golden fingers (12V)
•
The rest of the consumed power is drawn from the external PCIe power supply connector
Important Notes and Warnings
•
The BlueField-3 DPU accommodates a standard PCIe Aux power connection. However, certain
servers may necessitate a custom setup to enable ATX power compatibility.
•
Prior to connecting the Aux power, it is advisable to use a multi-meter to measure the power
supply.
•
Do not link the CPU power cable to the BlueField-3 DPU's PCIe Aux power, as their pin
configurations differ. Utilizing the CPU power cable in this manner is strictly prohibited and
can potentially damage the BlueField-3 DPU. Please refer to
Connector Pins
•
It is preferable that the x16 PCIe golden fingers and the PCI ATX connector power supply both
draw from the same power source. For more information on how to power-up the card, refer
to
DPU Power-Up
•
If you are uncertain about your server's compatibility with the PCI ATX connection, please
reach out to your NVIDIA representative for assistance.
for the external PCIe power supply pins.
Instructions.
External PCIe Power Supply
24
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