Dynatron A51 Passive Copper CPU Heatsink for Intel LGA 771/775 Servers and Workstations

Overheating in dense server environments can lead to throttling, instability, and premature hardware failure. The Dynatron A51 addresses this by offering a purely passive cooling solution that relies on your chassis's existing airflow to dissipate heat effectively. Crafted entirely from copper with skived fins, this heatsink maximizes thermal transfer without adding noise or power draw.

Who is it for

System integrators and IT administrators building or maintaining 1U and 2U rack-mounted servers or workstations based on Intel LGA 771 or LGA 775 processors. It is ideal for environments where silence is critical and sufficient forced airflow is already present, such as data centers, network appliances, or high-density computing clusters.

Main features

• Passive cooling design – no fan, zero noise, and no moving parts to fail.
• Solid copper construction with skived fins for excellent heat conductivity.
• Supports Intel LGA 771 and LGA 775 sockets, covering Xeon and Core 2 Duo platforms.
• Handles processors up to 95W TDP when paired with adequate system airflow.
• Screw-down mounting ensures secure attachment in vibration-prone rack environments.
• Compact profile fits 1U and 2U server chassis without clearance issues.

Specifications

• Product type: CPU heatsink
• Cooler type: Passive
• Material: Copper (base and fins)
• Socket compatibility: Intel LGA 771, Intel LGA 775
• Thermal design power (TDP) support: Up to 95W (with adequate system airflow)
• Fan included: No
• Mounting type: Screw-down
• Fin type: Skived fins
• Base plate material: Copper
• Heat pipe material: N/A (no heat pipes)
• Recommended chassis type: 1U/2U server chassis
• Thermal interface material (TIM) included: No
• Number of units: 1

Tips

Before installation, verify that your chassis provides sufficient airflow across the heatsink—typically at least 20–30 CFM directed over the CPU area. Apply a high-quality thermal paste (not included) in a thin, even layer to ensure optimal heat transfer. For best results, position the heatsink so that the fin channels align with the direction of airflow in your chassis. Periodically inspect for dust buildup, as accumulated dust can reduce cooling efficiency in passive systems.