OCP NIC Community Update�March 2026

for Server Project

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

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

Agenda

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• IPMI FRU Mfg Date/Time rollover
• Thermal Test Fixture update
• Signal Integrity workstream update
• Thermal workstream update

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Board Info Area Format Mfg Date/Time Rollover

• Defined by the IPMI FRU Storage Information Specification. Last updated March 2015.
• Board Info Area Format has a 3-byte Mfg Date/Time field.
• Defined as the number of minutes from 0:00 hrs 1/1/1996.
• Rolls over Nov 24th, 2027.

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Option 1: OCP NIC leaves the Mfg Date/Time field as-is and allows the value to roll over with a start year ambiguity (1996, 2027, 2058, etc). Possibly following the OpenBMC format: https://gerrit.openbmc.org/c/openbmc/entity-manager/+/87782

Option 2: OCP NIC cards may start using the value of 00_00_00h (“unspecified”) going forward and is required to use 00_00_00h after Nov 24th, 2027.

Option 3: OCP NIC amends the 0xC0 Base OEM Record with a four byte manufacturing date field that starts from 0:00 hrs Jan 1st, 1996.

Option 4: OCP NIC amends the 0xC0 Base OEM Record with a four byte manufacturing date field that starts from 0:00 hrs Nov 24th, 2027.

E-mail reflector thread: https://ocp-all.groups.io/g/OCP-NIC/message/324

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Company Input:

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add DMTF option 5

OCP TTF contribution

Dell is contributing the latest OCP TTF.

Update: OCP Server Group to review March 25th

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• Supports all active form-factors: SFF, TSFF, DSFF, TDSFF
• Up to PCIe Gen 6
• Design files: < Google Drive Link >
• Github for the MCU: https://github.com/bentprong/ocp_ttf_dsff

Proposed OCP NIC 1.7 Inputs for PCIe Budgets

PCIe CEM 7.0 Draft 0.5

Page 17 of the

Draft 0.5 Spec

Now Rev 1.0

Also refer to PCIe Base Spec 7.0 section: 8.3.5

The following informative limits for PCIe Gen 7 at 128 GT/s are to be specified. Current investigative efforts are ongoing by the OCP NIC sub-group to determine a specified set of values to cover Insertion Loss, Return Loss, PSNEXT and PSFEXT.

New Section 6.1.3.4 PCIe Gen 7 Informative Limits

Proposed OCP NIC 1.7 Inputs for Informative Limits

Thermal Workstream Update

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• Liquid cooling feasibility study close to complete
• Detailed mechanical design is close to complete
• Pending refinement post DFM/DFA checks
• Updated thermal model is WIP
• Plan to formally present proposed liquid cooled TSFF reference design in April’s monthly NIC meeting
• If goes well, will take to MHS server group for feedback

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Thank You

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