1 of 8

2 of 8

SERVER

OCP NIC Community Update�February 2023

For Server Project�����Sub-group Project wiki: https://www.opencompute.org/wiki/Server/NIC�

Mailing List: https://ocp-all.groups.io/g/OCP-NIC

NIC3.0

3 of 8

Agenda

  • TSFF thermal test fixture update
  • I3C & USB2 OCP NIC direction
  • PCIe Gen5 on Thermal Test Fixture

​

​

4 of 8

Thermal Test Fixture for TSFF feedbacks

We have feedbacks that Thermal Test Fixture for TSFF has air leak

There is a proposal to include additional air-baffle

​

No alignment in OCP NIC discussion yet. Having offline conversations

5 of 8

I3C & USB side-band update

Did not see a need to rush and define I3C pins for NIC 3.0

OCP NIC to monitor and participate PCIe CEM discussion, seek solution to resolve I2C & I3C voltage level delta

Monitor for I3C ecosystem adoptions

​

USB2 already defined in NIC 3.0

USB2 as sideband and BMC OOB is an interesting concept

Similar discussion in SFF-TA-1034 seeking USB2 to potentially replace NCSI in the future

6 of 8

Test setup started this month– results expected soon

​

TTF was designed to support speeds up to PCIe® 5.0 32GT/s

    • Uses very low-loss material

Cable assembly must be updated for 32GT/s signaling transmission

    • Received cable assemblies from two vendors
    • Lab experimentation requires NIC 3.0 PCIE Gen5 unit
    • NVIDIA samples received end of Nov
    • Dell arranging test with two cable assemblies

PCIe® 5.0 Thermal Test Fixture (TTF)

OCP NIC 3.0 TTF in use

Example cable assembly from Samtec

Jason

7 of 8

8 of 8

Gather feedback throughout the year

Provide your feedback at:�https://tinyurl.com/feedback2ocpnic