Lenovo 4XG7A09050 SR550 Xeon 6128 6C/115W/3.4GHZ

Lenovo 4XG7A09050 Xeon Gold 6128 6-Core Server Processor

Overview

The Lenovo 4XG7A09050 is a 1st Generation Intel Xeon Gold 6128 processor designed for the ThinkSystem SR550 server platform. Built on Intel's 14nm Skylake architecture with 6 cores, 12 threads, and a 3.4 GHz base clock that boosts to 3.7 GHz, this processor targets workloads where single-thread performance and moderate parallelism matter more than raw core count — think database query processing, video analytics servers, or VMS hosts running moderate camera counts. The 115W TDP keeps it within the thermal envelope of 2S rack configurations without requiring exotic cooling infrastructure, and Lenovo includes a cooler in the box so you are not sourcing thermal solutions separately.

Key Features

• 6 Cores / 12 Threads at 3.4 GHz Base: The Xeon Gold 6128 runs 12 simultaneous threads at a sustained 3.4 GHz base — meaningful for VMS platforms like Milestone or Genetec where per-camera decode threads compete for CPU cycles. Fewer, faster cores outperform higher core-count options when thread-per-camera concurrency is the bottleneck rather than raw throughput.
• 3.7 GHz Turbo Boost: When workloads concentrate on a subset of cores — common during motion-event bursts or forensic video export — the processor automatically steps up to 3.7 GHz. That 300 MHz headroom reduces export latency without requiring you to overprovision the base clock across all cores.
• 19.25 MB L3 Cache: The large L3 cache keeps frequently accessed data on-die, which matters for database-backed VMS configurations where repeated access to index structures and metadata would otherwise generate DRAM round trips. Less cache pressure translates to more consistent frame decode throughput under load.
• 115W Thermal Design Power: At 115W TDP, the 4XG7A09050 fits within standard SR550 2U power and cooling budgets without requiring upgraded PDUs or additional rack cooling capacity. If you are populating both processor sockets on an SR550, budget 230W for the CPU pair alone — factor that into your UPS and circuit sizing.
• Up to 768 GB Maximum Memory: The Xeon Gold 6128 supports up to 768 GB of RAM across the SR550's memory channels. For VMS deployments running in-memory event indexes, or AI analytics platforms caching model weights, that headroom means you can scale memory aggressively without hitting a processor-side ceiling before the chassis runs out of DIMM slots.
• LGA 3647 Socket P — Platform Lock-In Awareness: This processor installs in the LGA 3647 (Socket P) socket found on the SR550 motherboard. That socket is specific to 1st and 2nd Gen Scalable platforms — it is not compatible with Purley-refresh or Ice Lake boards. Confirm your SR550 firmware and board revision support the H0 stepping of the 6128 before ordering a second unit to populate the second socket.
• 64-Bit Operation / 12 Threads: Full 64-bit execution with 12 logical processors gives Windows Server and Linux hypervisors enough vCPU allocation room to run isolated VMs for VMS, analytics, and network management on a single SR550 host — reducing rack footprint without sacrificing workload isolation.
• Cooler Included: Lenovo includes a compatible cooler with the 4XG7A09050, which eliminates the separate thermal solution sourcing step common with OEM-bare processor purchases. For SR550 deployments, confirm the included cooler matches the chassis airflow direction (front-to-back) before installation.

Integration and Compatibility

The 4XG7A09050 is designed as a component for the Lenovo ThinkSystem SR550 server/workstation platform. The LGA 3647 Socket P interface is shared across Intel's 1st and 2nd Gen Xeon Scalable families, but mixing generations in a dual-socket configuration is not supported — both sockets must be populated with identical processors. Verify BIOS version compatibility via Lenovo's firmware update matrix before deploying in an existing SR550 that may have been originally shipped with a different SKU. The processor ships from Mexico (country of origin MX) and carries UNSPSC code 43201503, classifying it under electronic components for procurement and ERP integration purposes.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A09050 compatible with?

A: The 4XG7A09050 is designed for the Lenovo ThinkSystem SR550 server platform, using the LGA 3647 (Socket P) socket. It is a 1st Generation Intel Xeon Scalable processor (Skylake architecture, H0 stepping).

Q: Does the 4XG7A09050 include a cooler?

A: Yes, Lenovo includes a cooler with the 4XG7A09050. No separate thermal solution purchase is required for a standard SR550 installation.

Q: What is the TDP of the Xeon Gold 6128 in this configuration?

A: The 4XG7A09050 has a Thermal Design Power (TDP) of 115W. In a dual-socket SR550 configuration with both sockets populated, budget approximately 230W for the CPU pair when sizing power and cooling.

Q: Can I mix the 4XG7A09050 with a different Xeon processor in the SR550's second socket?

A: No. Dual-socket Xeon Scalable configurations require identical processors in both sockets. Both must be the same model, stepping, and frequency.

Q: What is the maximum RAM this processor supports?

A: The Intel Xeon Gold 6128 supports up to 768 GB of internal memory, giving SR550 deployments substantial headroom for memory-intensive workloads such as VMS event indexing or AI analytics platforms.

Q: What is the weight and shipping size of the 4XG7A09050?

A: The unit weighs 2.94 lb and ships in packaging with dimensions of 8.50 x 10.25 x 7.25 inches (L x W x H).

Eden Phillips

When customers ask me about the 4XG7A09050, I focus on what the Xeon Gold 6128's 3.4 GHz base clock actually buys you in a surveillance or edge analytics context — this is not a core-density play, it is a clock-speed-per-thread play. Six cores at 3.4 GHz with a 3.7 GHz boost handles the decode-per-channel math well for mid-tier VMS deployments on the SR550 without the licensing overhead of a higher core-count SKU.

Technical Highlights:

• 3.7 GHz Turbo Boost: Motion-event bursts on a VMS host spike CPU briefly — the 300 MHz boost headroom absorbs those spikes without sustained thermal throttling under the 115W TDP ceiling.
• 19.25 MB L3 Cache: Keeps VMS metadata and database index structures on-die, reducing DRAM round trips during concurrent query and decode operations — measurable in forensic search response times on larger retention pools.
• 768 GB Max Memory Support: The 6128's memory ceiling means you can load the SR550 with RAM-heavy analytics workloads — object recognition models, in-memory indexes — without the processor becoming the constraint before the chassis DIMM slots fill up.

Deployment Considerations:

• The H0 stepping of the Xeon Gold 6128 requires a BIOS version on the SR550 that explicitly supports it — check Lenovo's firmware compatibility matrix before installing into an SR550 that shipped with an earlier processor generation.
• At 115W TDP, this processor sits at the upper end of standard 2U airflow budgets — if the SR550 chassis is in a high-ambient-temperature environment (above 35°C inlet), verify the included cooler's rated airflow matches the deployment condition before commissioning.

The 4XG7A09050 is the right call for SR550-based VMS hosts running 32–64 camera channels with moderate analytics offload, where per-thread clock speed matters more than the parallelism of a 12- or 16-core alternative — particularly in single-socket deployments where the second socket stays empty and power efficiency per channel is a design constraint.