ConnectX-7 OCP 3.0 technical selection questions
Technical evaluation questions with variant-specific scope and sources.
ConnectX-7 OCP 3.0 technical selection questions
These questions are prepared from the cited technical documentation and clearly scoped owner inputs. They are not a measured frequency ranking. Keep the applicability line with each answer; do not transfer board, cooling, crypto, protocol, cable length or firmware facts between variants.
Can this replace a stand-up HHHL card?
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It uses an OCP3 SFF connector and thumbscrew/pull-tab retention. It requires the corresponding OCP server interface rather than an ordinary stand-up PCIe installation.
Public references
- ConnectX-7 OCP 3.0 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual
How does HEAB differ from HEBB?
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The opened ordering table identifies HEBB as a port-split-capable variant; HEAB is a separate dual-QSFP112 OCP configuration. Do not transfer HEBB port-splitting claims to HEAB.
Public references
- ConnectX-7 OCP 3.0 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual
Which security variant is MS?
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MCX753436MS-HEAB enables secure boot and disables hardware crypto. MCX753436MC-HEAB is the crypto-enabled counterpart.
Public references
- ConnectX-7 OCP 3.0 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual
Will Multi-Host work in any OCP slot?
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No automatic compatibility is established. Baseboard lane routing, server firmware and supported adapter configuration determine whether the advertised Multi-Host/Socket Direct capabilities can be used.
Public references
- ConnectX-7 OCP 3.0 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual
Which typical-power condition is documented?
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24.5 W with passive cables and PCIe Gen 5 x16. The document’s connector power ceiling is marked not thermally supported; it must not be used as an optics thermal qualification.
Public references
- ConnectX-7 OCP 3.0 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Cards for OCP Spec 3.0 User Manual
Which network mode should be checked at installation?
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The ordering row specifies Ethernet by default, with 200 GbE and NDR200/HDR InfiniBand support. Record the actual firmware, PSID and configured protocol before link testing.