OCP DC-SCM moves the BMC, root of trust and TPM onto a pluggable module separate from the host processor module; DC-SCM Rev 2.2 (Version 1.0, September 2025) is the current published specification, after the 2.1 specification and the Cloudflare/Lenovo Project Argus DC-SCM 2.0 module design (both 2023)
DC-SCM Rev 2.2observed
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | Rev 2.2 pairs with LTPI 1.2 (LTPI is now a standalone specification). DC-SCM 2.1 (2023) is the previous specification revision; Project Argus is a DC-SCM 2.0-compliant module design contribution, not a specification revision. DC-SCM 3.0 is an OCP sub-project with no published specification as of 2026-10-19. OCP MGX 1.2 (effective 2026-10-06) adds a compact vertical 1RU module on the same SFF-TA-1002 connector with a subset of DC-SCI pins. |
| As of | 2025-09 |
| Source | Open Compute Project, DC-SCM Specification Revision 2.2, Version 1.0 · Title page ('Revision 2.2, Version 1.0') and revision history (2.2 v0.5 February 2025; v1.0 September 2025); OCP Hardware Management wiki: 'The current published specification is DC-SCM Rev 2.2' |
| Review | checking…review by 2027-04-19 · standard cadence |
| Recorded changes | last 2026-10-19 · 3 revisions tracked |
| Claim id | ocp-module-decoupling-bmc-rot-tpm-from-the |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.