Lenovo 4H47B03711 SR650/A V4 2U Entry Heatsink

Lenovo 4H47B03711 SR650/A V4 2U Entry Heatsink

Overview

The Lenovo 4H47B03711 is the entry-level processor heatsink for the ThinkSystem SR650 and SR650 V4 platforms — a direct-replacement thermal component for 2U rack deployments where proper CPU cooling is non-negotiable for sustained server performance. If you are commissioning or servicing an SR650/A V4 chassis and need a genuine, factory-sourced heatsink that slots into the existing bracket geometry, this is the part to specify.

Weighing 10 lb, the 4H47B03711 ships from Lenovo's Mexico manufacturing facility and carries UNSPSC code 43201538, confirming classification as a server rack component. Sourced factory-new through channel-direct distribution — no grey-market, no parallel imports.

Key Features

• 2U Rack Form Factor: Designed for the 2U chassis envelope of the ThinkSystem SR650 and SR650 V4, so it fits the existing tooled mounting points without modification. Swapping to a heatsink sized for a different chassis generation risks poor contact pressure and thermal throttling.
• Entry-Level Thermal Rating: Sized for standard (non-high-core-count) processor configurations in the SR650 V4 family. If your deployment uses high-wattage or many-core CPUs that exceed the entry thermal envelope, Lenovo's performance heatsink variant is the correct spec — not this unit.
• 10 lb Shipping Weight: At 10 lb, this is a substantial copper-and-aluminum assembly. Factor that into rack service logistics — field technicians replacing heatsinks in dense chassis should have two-person access for safe handling and torque-controlled installation.
• Factory-New Genuine Component: Sourced direct from Lenovo's manufacturing supply chain out of Mexico. A non-genuine or refurbished heatsink on a production server carries thermal contact risk — the 4H47B03711 eliminates that variable.
• UNSPSC 43201538 Classification: Correctly classified as a rack-mount server component, which matters for procurement systems that validate commodity codes against approved hardware categories.

Integration and Compatibility

The 4H47B03711 is validated for the Lenovo ThinkSystem SR650 and SR650 V4 (2U) server platforms. Before ordering, verify your chassis generation and processor TDP class against Lenovo's current SR650 V4 compatibility matrix — the entry heatsink is appropriate for processors within its rated thermal envelope only. Pair this component with Lenovo's SR650 V4 processor and memory options for a complete validated configuration. For rack server components across the Lenovo ThinkSystem line, confirm part numbers against your chassis service manual before installation.

Frequently Asked Questions

Q: Which server platforms is the Lenovo 4H47B03711 compatible with?

A: The 4H47B03711 is designed for the Lenovo ThinkSystem SR650 and SR650 V4 2U rack servers. Verify your specific chassis revision and processor TDP against Lenovo's compatibility documentation before installing.

Q: Is this an entry or performance heatsink?

A: The 4H47B03711 is the entry-level heatsink for the SR650/A V4 platform. High-core-count or high-TDP processor configurations require Lenovo's performance heatsink variant — not this part.

Q: What does this part weigh?

A: The 4H47B03711 weighs 10 lb. Plan for two-person handling when servicing dense rack environments.

Q: Where is the 4H47B03711 manufactured?

A: Manufactured in Mexico (Country of Origin: MX) through Lenovo's production supply chain.

Q: Is this a genuine Lenovo part or an aftermarket component?

A: This is a genuine, factory-new Lenovo component sourced through channel-direct distribution — not aftermarket or refurbished.

Marty Allison

The 4H47B03711 is a straightforward but consequential part — at 10 lb, it is the thermal foundation for the processor in a ThinkSystem SR650 V4 chassis, and getting the heatsink spec wrong (entry vs. performance) is the kind of mistake that shows up as intermittent thermal throttling under load, not a clean failure you can diagnose quickly.

Technical Highlights:

• 2U Chassis Fit: Matched to the SR650/A V4's 2U internal geometry — drop-in replacement that respects existing bracket and retention clip positions without chassis modification.
• Entry Thermal Class: Rated for standard-TDP processors in the SR650 V4 family; if your BOM calls for a 200W+ or many-core CPU, cross-check Lenovo's heatsink selection guide before specifying this SKU.
• Factory-New Sourcing: Genuine Lenovo component from Mexico production, sourced channel-direct — relevant when a data center's change management process requires documented component provenance.

Deployment Considerations:

• Always torque the heatsink retention screws to Lenovo's specified value using a calibrated torque driver — over-tightening deforms the IHS contact surface; under-tightening causes hot-spot thermal resistance.
• The 10 lb weight is significant in a populated 2U chassis with other components already installed — clear adjacent drive bays before attempting a heatsink swap to avoid cable or backplane damage.

Best fit for SR650 V4 deployments running standard-TDP processors in data center or server room environments where a like-for-like field replacement is needed and component provenance documentation is required by IT policy.