Using thermal grease on VRMs (voltage regulator modules) is generally not recommended. VRMs are responsible for regulating and supplying power to the CPU or GPU on a motherboard. While thermal grease is commonly used for CPU and GPU applications, VRMs have different requirements.

VRMs typically have small, closely spaced components that generate significant heat during operation. These components include power mosfets, inductors, capacitors, and other circuitry. The heat dissipation requirements and thermal management considerations for VRMs differ from those of CPUs and GPUs.

Instead of thermal grease, VRMs often require specialized thermal pads or thermal interface materials (TIMs) designed specifically for VRM applications. These materials are typically softer and more compressible than thermal grease. They provide efficient heat transfer, conform to the irregular surfaces of VRM components, and help dissipate heat effectively.

Thermal pads or TIMs for VRMs are often pre-cut to fit the specific layout and size of the VRM components. They provide a consistent and controlled thermal interface, ensuring optimal heat dissipation and thermal performance for the VRMs.

Using thermal grease on VRMs may not provide sufficient thermal conductivity or conformability, leading to suboptimal heat transfer and potentially affecting the VRM's performance and reliability. Therefore, it's generally recommended to follow the manufacturer's guidelines and use the appropriate thermal pads or TIMs specifically designed for VRM applications.

If you would like to learn more about AOK performance thermal materials, please visit our website at www.aok-technologies.com