Supermicro 1U Passive CPU Heatsink FCLGA3647 Narrow ILM for X11 SNK-P0067PSM

The Supermicro SNK-P0067PSM is a 1U passive CPU heatsink designed specifically for Intel Xeon Scalable processors on the X11 Purley platform. It is engineered for FCLGA3647 (Socket P) with a Narrow ILM mounting mechanism and features a proprietary Middle-Air-Channel design optimized for high-density multi-node server architectures.

Technical Specifications

• Socket Compatibility: FCLGA3647-0 (Socket P) – Narrow ILM only

• Platform: Intel Xeon Scalable (X11 Purley Platform)

• Maximum TDP: Up to 165W

• Form Factor: 1U low-profile

• Dimensions: 108mm (L) x 78mm (W) x 25.5mm (H)

• Cooling Type: Passive (no fan attached; relies on chassis airflow)

• Material: Aluminum heatsink fins

System & Motherboard Compatibility

This heatsink is not universal; it is validated for specific Supermicro high-density systems.

Officially Validated Systems

• Supermicro SYS-2029TP-HTR

• Supermicro SYS-F619P2-RT

Compatible Motherboards

• Supermicro X11DPFR-S

• Supermicro X11DPT-PS

While primarily validated for the TwinPro and BigTwin series, compatibility is technically defined by:

• X11 generation motherboards

• LGA3647 Narrow ILM socket

• Chassis airflow that matches its passive cooling design

It may be installed on other X11 boards using Narrow ILM, provided the chassis airflow is sufficient.

Key Proprietary Feature: Middle-Air-Channel (M)

The “M” in SNK-P0067PSM indicates a 26mm wide Middle-Air-Channel.

• Designed to align with specialized air shrouds in 2U 4-node multi-node chassis

• Optimized for Twin architecture airflow paths

• Improves cooling efficiency in dense configurations

For standard 1U rackmount servers (non-Twin architecture), the
Supermicro SNK-P0067PS
is often preferred, as it uses a traditional fin array without the middle air gap and supports higher airflow flexibility.

Technical Constraints

• TDP Limit: Rated up to 165W

  • High-wattage Xeon Gold or Platinum CPUs exceeding 165W may require a higher-capacity heatsink such as the SNK-P0067PS (supports up to 205W).

• Mounting Limitation: Fits LGA3647-0 Narrow ILM only

  • Not compatible with Square ILM versions of the same socket

Summary

The Supermicro SNK-P0067PSM is a purpose-built 1U passive heatsink optimized for X11 Purley multi-node platforms using Narrow ILM. Its proprietary Middle-Air-Channel design makes it ideal for TwinPro and BigTwin 2U 4-node systems, but less suitable for standard single-node 1U chassis unless airflow conditions are carefully verified.