ConnectX-7 technical selection questions
Technical evaluation questions with variant-specific scope and sources.
ConnectX-7 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.
Which connector and host slot does this order code require?
Applicable canonical content subjects: 900-9X766-003N-ST0.
MCX75310AAS-HEAT uses 1 OSFP port and PCIe 5.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references
Does it support Ethernet as well as InfiniBand?
Applicable canonical content subjects: 900-9X766-003N-ST0.
The exact ordering table lists 200 GbE and NDR200 InfiniBand. Both protocols require hardware revision A7 or higher.
Public references
Are crypto and secure boot the same option?
Applicable canonical content subjects: 900-9X766-003N-ST0, 900-9X766-003N-SQ0.
No. Secure boot is enabled on this order code; crypto is disabled. These are separately identified capabilities, so retain the exact suffix when ordering.
Public references
How should a link that will not come up be checked?
Applicable canonical content subjects: 900-9X766-003N-ST0, 900-9X766-003N-SQ0.
Check seating, cable connection, the intended port configuration and supported firmware/driver combination. Compare cable or module compatibility and the peer switch settings before treating a missing link as hardware failure.
Public references
Can the quoted typical power be used as the server thermal limit?
Applicable canonical content subjects: 900-9X766-003N-ST0.
No. NVIDIA lists 16.7 W with passive cables in PCIe Gen 5 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references
What special selection check applies to this variant?
Applicable canonical content subjects: 900-9X766-003N-ST0.
Confirm hardware revision A7 or higher for Ethernet/InfiniBand operation.
Public references
- NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
- Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual
Which connector and host slot does this order code require?
Applicable canonical content subjects: 900-9X766-003N-SQ0.
MCX75310AAS-NEAT uses 1 OSFP port and PCIe 5.0 x16. The card is HHHL and ships with a tall bracket. Match the cage, optics or cable, lane width and chassis clearance.
Public references
Does it support Ethernet as well as InfiniBand?
Applicable canonical content subjects: 900-9X766-003N-SQ0.
The exact ordering table lists 400 GbE and NDR InfiniBand. Both protocols require hardware revision AA or higher.
Public references
Can the quoted typical power be used as the server thermal limit?
Applicable canonical content subjects: 900-9X766-003N-SQ0.
No. NVIDIA lists 24.9 W with passive cables in PCIe Gen 5 x16 for this variant. Maximum power and required airflow need the full product specifications and the exact server/optics configuration.
Public references
What special selection check applies to this variant?
Applicable canonical content subjects: 900-9X766-003N-SQ0.
Confirm hardware revision AA or higher for Ethernet/InfiniBand operation.
Public references
- NVIDIA ConnectX-7 Adapter Cards User Manual | NVIDIA ConnectX-7 Adapter Cards User Manual
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
- Supported Interfaces | NVIDIA ConnectX-7 Adapter Cards User Manual
Is this the single-OSFP MCX75310AAS-HEAT?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
No. MCX755106AS-HEAT has two QSFP112 ports and Socket Direct readiness. MCX75310AAS-HEAT is the single-OSFP configuration.
Public references
- ConnectX-7 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
Which protocol is the default?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
The exact specification lists Ethernet as the default and supports 200 GbE and NDR200 InfiniBand. Confirm the configured port mode before selecting the switch and interconnect.
Public references
- ConnectX-7 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
Is the auxiliary card included?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
No. NVIDIA explicitly excludes the passive auxiliary connection card and two harnesses from the Socket-Direct-ready primary-card kit. Select those components separately.
Public references
- ConnectX-7 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
Does the optional path have the same interface as the primary slot?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
The primary slot is PCIe 5 x16. The optional connection is described as an additional Gen 4 x16 path. The printed optional signal rate is inconsistent and remains a field-level qualification item.
Public references
- ConnectX-7 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
Does secure boot mean this variant enables crypto?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
No. The AS suffix is explicitly secure-boot-enabled and crypto-disabled; the AC variant has a different crypto configuration.
Public references
- ConnectX-7 ordering information
- ConnectX-7 firmware compatible products 28.45.1020
- Specifications | NVIDIA ConnectX-7 Adapter Cards User Manual
How should its power figure be used?
Applicable canonical content subjects: 900-9X7AH-0078-DTZ.
The published typical power is 24.9 W with passive cables in PCIe Gen 5 x16. It is not a maximum-system-power figure and does not establish the budget for an arbitrary active optic or auxiliary assembly.