Lenovo 4XG7A37926 Xeon Silver 4215 W/o FAN

Lenovo 4XG7A37926 Intel Xeon Silver 4215 8-Core Server Processor

Overview

The Lenovo 4XG7A37926 is an OEM-configured Intel Xeon Silver 4215 processor designed for Lenovo ThinkSystem server platforms. Rated at 2.5 GHz base with a 3.5 GHz Turbo Boost ceiling, this 8-core, 16-thread chip sits in the middle of the Xeon Silver 4000 series — enough compute headroom for multi-channel video analytics workloads, VMS server duties, or general enterprise application hosting without the premium price of a Gold-tier part. If you are expanding or refreshing a server platform that needs a single-socket or dual-socket 2nd Gen Xeon Scalable upgrade, this is a purpose-matched option worth evaluating against your workload profile.

One non-negotiable detail before ordering: the 4XG7A37926 ships without a heatsink or cooling fan. You must source a compatible Lenovo ThinkSystem heatsink separately — skipping this step means the processor cannot be commissioned. Factor that into your bill of materials and lead time before placing the order.

Key Features

• 8 Cores / 16 Threads at 2.5 GHz Base: The core count supports true parallel workloads — running a VMS engine, database backend, and analytics service concurrently without contention. The 16-thread count via Hyper-Threading means lighter I/O-bound tasks share cores efficiently, keeping utilization headroom for burst events like alarm-triggered recording spikes.
• 3.5 GHz Turbo Boost Frequency: When thermal and power headroom allows, individual cores ramp to 3.5 GHz — a 40% frequency lift over base that benefits latency-sensitive operations like live video decoding or real-time analytics inference on a small number of active threads.
• 11 MB L3 Cache: A larger last-level cache reduces main memory round-trips for frequently accessed data sets — important for VMS servers cycling through active recording buffers or any workload with hot data that fits in cache. Less memory bandwidth pressure translates to more consistent frame processing under load.
• 85W Thermal Design Power (TDP): At 85W, this processor fits within standard ThinkSystem chassis thermal budgets. Compared to higher-core-count Gold processors that can exceed 150W, the 85W envelope reduces per-server cooling demands and power draw — a meaningful factor in dense rack deployments where power allocation per U is constrained.
• LGA 3647 (Socket P) — 2nd Gen Xeon Scalable Platform: Socket P is the standard for 2nd Gen Intel Xeon Scalable (Cascade Lake) servers. This socket generation supports up to 6-channel DDR4 memory and two UPI links for dual-socket configurations, giving the platform memory bandwidth and inter-socket communication that scales with workload growth — relevant if you plan to add a second socket CPU later.
• 14 nm Lithography (Stepping L1): The mature 14nm process node offers a predictable power-performance curve and long-term silicon reliability under continuous server operation — appropriate for 24/7 environments like security operations centers or always-on surveillance recording infrastructure.
• 64-Bit Operating Mode: Full 64-bit support is required for any modern enterprise OS and all major NVR and VMS platforms. No 32-bit-only workload constraints to worry about.
• UPI Bus Interconnect: Intel's UPI (Ultra Path Interconnect) handles cache-coherent communication in dual-socket configurations. For two-socket ThinkSystem builds, UPI ensures both CPUs share a unified memory namespace without software-level NUMA complexity becoming a bottleneck in multi-threaded analytics or database workloads.

Integration & Compatibility

The 4XG7A37926 is a Lenovo OEM processor option intended for compatible Lenovo ThinkSystem servers using the LGA 3647 / Socket P platform — such as the SR530, SR550, SR630, and SR650 lines that support 2nd Gen Intel Xeon Scalable processors. Verify your specific server model's compatibility matrix before ordering, as not every ThinkSystem chassis qualifies for every Cascade Lake stepping.

On the software side, this processor supports all major VMS and video analytics platforms running on Windows Server or Linux — including Milestone XProtect, Genetec Security Center, Hanwha Wisenet WAVE, and similar enterprise-grade systems. The 8-core / 16-thread profile is consistent with Milestone's recommended server hardware for mid-tier deployments handling 32–64 camera channels with edge analytics offloaded to the cameras themselves.

Memory configuration is handled at the server level, not by this processor option alone. The 2nd Gen Xeon Scalable platform supports DDR4 speeds up to 2933 MHz in optimized configurations — but actual memory speed depends on DIMM count, rank, and server firmware settings, not solely on the CPU model.

Frequently Asked Questions

Q: Does the Lenovo 4XG7A37926 include a heatsink or cooling fan?

A: No. The 4XG7A37926 is explicitly listed as W/O FAN (without fan/heatsink). You must purchase and install a compatible Lenovo ThinkSystem heatsink before the processor can operate. Do not commission this CPU without confirming your cooling solution is in place.

Q: What server models is the 4XG7A37926 compatible with?

A: This is a Lenovo OEM part for ThinkSystem servers using the LGA 3647 (Socket P) platform that support 2nd Generation Intel Xeon Scalable processors. Compatible platforms include select configurations of the SR530, SR550, SR630, and SR650. Always verify against Lenovo's official server compatibility matrix for your specific chassis and firmware revision.

Q: How does the Xeon Silver 4215 compare to other processors in the 4000 series?

A: The Xeon Silver 4215 is an 8-core part at 85W TDP — positioned between lower-core-count entry Silver models and higher-TDP Gold processors. It offers a reasonable balance of core count, clock speed (2.5 GHz base / 3.5 GHz boost), and power envelope for mid-range server workloads. If your application is heavily threaded and needs more than 8 cores, consider a higher-core-count Gold-tier option in the same socket generation.

Q: Is this processor suitable for running a VMS or NVR server?

A: Yes. The 8-core / 16-thread configuration at 2.5–3.5 GHz is a workable fit for enterprise VMS servers handling mid-range camera counts — particularly where edge analytics offloads inference to the cameras and the server handles recording, storage I/O, and client streaming. For large deployments with heavy server-side analytics, evaluate whether a higher-core-count processor better matches the workload.

Q: What is the TDP of the 4XG7A37926?

A: The Thermal Design Power is 85W. This fits within standard ThinkSystem chassis thermal budgets and is lower than many Gold-tier processors, which is relevant when calculating rack-level power and cooling capacity.

Q: Does the 4XG7A37926 support dual-socket configurations?

A: The Xeon Silver 4215 uses the LGA 3647 / Socket P platform with UPI interconnect, which supports dual-socket server builds. Whether your specific ThinkSystem chassis supports dual-socket population depends on the server model. Consult Lenovo's documentation for your target platform.

Karl Wilson

The Lenovo 4XG7A37926 is a processor option I see specified regularly for ThinkSystem mid-range server refreshes — specifically because the Xeon Silver 4215's 85W TDP keeps it inside standard chassis thermal envelopes while still delivering 8 cores and a 3.5 GHz boost ceiling that handles VMS server duties without thermal throttling under sustained load.

Technical Highlights:

• 8C/16T at 2.5 GHz base / 3.5 GHz boost: The 40% frequency headroom above base matters for bursty VMS operations — alarm-triggered multi-stream decoding, client connects, and analytics correlation all benefit from cores that can sprint to 3.5 GHz when thermal budget allows.
• 11 MB L3 Cache: Larger than many entry-level server CPUs, the 11 MB L3 keeps active recording buffer metadata and frequently accessed VMS database indices closer to the cores — reducing DDR4 latency round-trips under multi-channel load.
• 85W TDP on LGA 3647: In dual-socket ThinkSystem configurations, two of these processors total 170W — comfortably within most 2nd Gen Xeon Scalable chassis power budgets and well below the 200W+ ceiling of higher-core Gold options, leaving margin for a full DIMM and storage complement.

Deployment Considerations:

• No heatsink is included with the 4XG7A37926 — this is a W/O FAN part. Source a compatible Lenovo ThinkSystem heatsink (standard or performance tier depending on chassis airflow) before scheduling installation. This is the most common oversight on this SKU.
• The Stepping L1 designation matters for mixed-CPU dual-socket builds — Intel requires matching steppings across both sockets on Cascade Lake platforms. Confirm your existing or companion CPU stepping before ordering a second unit.

This processor is a strong fit for a ThinkSystem SR630 or SR650 deployed as a dedicated VMS recording and management server for a 32–64 camera security installation — where the server handles recording, client streaming, and light server-side analytics while cameras with edge AI handle on-device detection.