Used Heatsinks

Heatsinks are crucial in managing the thermal output of various components like CPUs, GPUs, and even some high-performance ICs. They come in various forms, such as active, passive, and phase-change heatsinks.

Types of Heatsinks for Workstations and Servers

Active Heatsinks:

  • These typically use a fan or a peltier device to cool the component actively. They are efficient in managing higher thermal loads.
  • Example: The Cooler Master Hyper 212 Evo is a widely used active cooler for CPUs.

Passive Heatsinks:

  • These rely on conduction and natural convection to dissipate heat. They don’t have any moving parts, which makes them silent and maintenance-free, but their cooling capacity is generally lower.
  • Example: NoFan CR-95C is a renowned example of passive heatsinks, providing silent operation.

Phase-Change Heatsinks:

  • These utilize the phase change of a material to absorb heat. These are found in more specialized scenarios due to their complexity and cost but offer superior cooling.
  • Example: The use of heat pipes in many cooling solutions can be considered a form of phase-change cooling, as it involves the vaporization and condensation of a working fluid.

Considerations in Selecting Heatsinks:

When selecting a heatsink, several factors should be considered:

Brand and Model of Workstation or Server

  • Each brand and model of workstation or server has a specific heatsink that it manufactured for that model. Be sure to select the heatsink that is specifically made to fit your model. There is some overlap however, some heatsinks made for the Z series workstations will fit on a number of models and are interchangable.

Thermal Design Power (TDP):

  • The component’s TDP will largely dictate the necessary cooling capacity. Matching a heatsink’s capability to the component’s TDP is crucial.

Space and Compatibility:

  • The physical dimensions and mounting options must be compatible with the component and the surrounding environment (case, motherboard, etc.).

Noise Level:

  • For some environments, noise level is crucial. Passive heatsinks or active ones with quiet fans may be preferred.


  • Cost is always a factor; it’s about finding the right balance between performance and price.


  • In modern builds, particularly for gaming or high-end workstations, the visual appeal of a heatsink can also be a deciding factor.

Performance and Efficiency:

  • The efficiency of a heatsink is critical. It should be able to dissipate heat effectively to maintain the component within operational temperature levels.


  • Depending on the environment, maintenance (such as cleaning) can be a significant factor in selection. Passive heatsinks, for instance, may be preferred in environments where regular maintenance isn’t feasible.