Lenovo 4XG7A72930 ST650 V2 Silver 4309Y 8C 105W 2.8GHZ

Lenovo 4XG7A72930 Intel Xeon Silver 4309Y 8-Core Server Processor

Overview

The Lenovo 4XG7A72930 is an Intel Xeon Silver 4309Y processor option kit designed for the Lenovo ThinkSystem ST650 V2 tower server. Built on Intel's Ice Lake microarchitecture at 10nm, the 4309Y delivers 8 cores and 16 threads at a 2.8 GHz base clock with a 3.6 GHz boost — the right balance of per-core throughput and parallel capacity for compute-dense workloads in edge server deployments, surveillance recording infrastructure, and compact enterprise environments where a tower footprint makes more sense than rack density.

At 105W TDP and a 10.4 GT/s system bus, this processor fits squarely in the mid-tier Xeon Silver performance band: enough headroom to drive simultaneous video analytics, database queries, or virtualized workloads without the power draw and cooling requirements of a Platinum-class part. The cooler is not included — factor that into your BOM before ordering.

Key Features

• 8 Cores / 16 Threads at 2.8–3.6 GHz: The 4309Y's 16-thread throughput handles concurrent workloads without the core-count premium of higher Xeon Silver SKUs. For a surveillance server running a VMS alongside edge analytics processes, 16 threads give the OS room to schedule tasks without contention spikes during high-motion recording events.
• 3.6 GHz Boost Frequency: Single-threaded workloads — report generation, database index updates, real-time alert processing — get the benefit of a 0.8 GHz clock step-up from base. Applications that aren't fully parallelized still run at competitive speeds.
• 12 MB L3 Cache: A 12 MB last-level cache reduces memory latency for working data sets that fit within it. In VMS environments, this matters for frame buffering and index lookups across active camera streams.
• 10nm Ice Lake Lithography: The smaller process node improves power efficiency relative to the previous 14nm Cascade Lake generation. You get comparable throughput at lower thermal output — relevant when the ST650 V2 is deployed in a closet or edge room without dedicated CRAC cooling.
• 105W TDP: This is a mid-range Xeon Silver TDP — not a low-power T-SKU, but well within the ST650 V2's thermal envelope. Verify your chassis cooling configuration supports it; a cooler must be ordered separately (not included in this kit).
• LGA 4189 Socket (Ice Lake SP): The 4309Y uses the LGA 4189 platform, which supports PCIe 4.0 and DDR4-3200 memory on compatible server boards. Confirm your ST650 V2 board revision supports Ice Lake SP processors before installing.
• 64-bit / 16-Thread Execution: Full 64-bit instruction set with Intel Hyper-Threading. Virtualization workloads — running a VMS, NVR software, and a management VM simultaneously — benefit from the additional logical cores that Hyper-Threading exposes to the hypervisor scheduler.
• 10.4 GT/s UPI Bus Rate: In dual-socket ST650 V2 configurations, the UPI interconnect governs inter-processor bandwidth. The 4309Y's 10.4 GT/s bus rate supports coherent multi-socket operation for workloads that need shared memory access across both CPUs.

Integration & Compatibility

The 4XG7A72930 is a Lenovo option kit validated for the ThinkSystem ST650 V2 platform. As a Lenovo option kit, it is tested and validated against the ST650 V2's firmware and thermal management stack, reducing integration risk versus third-party processor procurement. The LGA 4189 socket is specific to Intel's Ice Lake SP generation — this processor is not backward compatible with Cascade Lake or Cooper Lake boards.

For server infrastructure deployments supporting physical security systems, the ST650 V2 with the 4309Y is a workable platform for mid-scale network video recorder software installations, particularly where a tower form factor avoids rack infrastructure costs. Pair with appropriate DDR4-3200 RDIMMs and a surveillance-grade storage array to round out the build. If you are sizing for a larger channel count or higher analytics density, evaluate the higher-core Xeon Silver options in the Lenovo ThinkSystem processor lineup before committing to an 8-core configuration.

Cooler not included — required for installation. Source the appropriate Lenovo-validated heatsink for the ST650 V2 chassis and TDP class before deploying. Running a 105W processor without an appropriately rated cooler will trigger thermal throttling and reduce effective clock speeds below the rated 2.8 GHz base.

Frequently Asked Questions

Q: Is a CPU cooler included with the Lenovo 4XG7A72930?

A: No. The 4XG7A72930 kit does not include a cooler. You must order a compatible heatsink separately for the ThinkSystem ST650 V2 before installing this processor.

Q: What server is the 4XG7A72930 designed for?

A: This processor option kit is designed for the Lenovo ThinkSystem ST650 V2 tower server. It uses the LGA 4189 socket specific to Intel's Ice Lake SP generation.

Q: What is the base and boost clock speed of the 4309Y processor?

A: The Intel Xeon Silver 4309Y in the 4XG7A72930 runs at a 2.8 GHz base frequency with a 3.6 GHz maximum boost frequency.

Q: How many cores and threads does the 4XG7A72930 processor provide?

A: The Xeon Silver 4309Y delivers 8 physical cores with Intel Hyper-Threading enabled, providing 16 logical threads for the operating system and hypervisor to schedule workloads across.

Q: What is the TDP of the 4XG7A72930, and does it affect cooling requirements?

A: The processor has a 105W Thermal Design Power rating. This is within the ST650 V2's thermal envelope but requires an appropriate Lenovo-validated heatsink — not included in this kit — to maintain rated operating frequencies without thermal throttling.

Q: Is the 4XG7A72930 compatible with PCIe 4.0 and DDR4-3200 memory?

A: The Intel Ice Lake SP platform (LGA 4189) supports PCIe 4.0 and DDR4-3200 on compatible ST650 V2 board revisions. Verify your specific board revision and firmware level support Ice Lake SP processors before installation.

Jerry Tildsen

The 4XG7A72930 is an 8-core Xeon Silver 4309Y processor kit for the ST650 V2 — a reasonable mid-tier upgrade for integrators building out a tower-based VMS or edge analytics server where rack space isn't available. The 105W TDP and 16-thread count position it well for concurrent workloads, but the missing cooler is a BOM item that catches people off guard on first order.

Technical Highlights:

• 2.8–3.6 GHz Clock Range: The 0.8 GHz boost headroom is meaningful for single-threaded segments of VMS processing — alert logic, codec decoding peaks, database queries. You won't be clock-limited on typical surveillance workloads with this range.
• 16 Logical Threads via Hyper-Threading: For a hypervisor running a VMS VM alongside a management or analytics VM, 16 threads give the scheduler enough room to avoid CPU contention during high-motion recording events across many camera streams.
• 10nm Ice Lake Efficiency: Compared to the prior Cascade Lake 14nm generation, Ice Lake SP delivers better throughput-per-watt. In an edge closet without precision cooling, that efficiency difference translates directly to operating temperature headroom.

Deployment Considerations:

• No cooler in the box — this is an option kit, not a full processor tray. Budget for a Lenovo-validated heatsink rated for 105W TDP on the ST650 V2 or you will see immediate thermal throttling at load.
• LGA 4189 is Ice Lake SP only. If your ST650 V2 chassis was originally configured with a Cascade Lake processor, verify the system board revision and firmware compatibility before purchasing this kit — the socket is physically the same but the microarchitecture support is generation-specific.

The 4XG7A72930 is a practical choice for a physical security operations center running a mid-scale VMS on a Lenovo ST650 V2 tower, particularly where the deployment site has limited rack infrastructure and the IT team wants a Lenovo-validated component rather than third-party processor sourcing.