How to apply thermal paste for optimal PC cooling

When applying thermal paste to a CPU, there are a lot of considerations to make. The thermal paste application procedure is easy, and we have explained how to do it correctly and step by step.

How to apply thermal paste for optimal PC cooling
Applying thermal paste is now easier with this guide. (Photo: Technopat)

If you're familiar with PC building, you may have heard of thermal paste, which is also known by other names such as thermal grease, heat paste, CPU paste, thermal gel, and thermal interface material (TIM). The proper application of thermal paste is critical to ensuring that your CPU or GPU functions correctly.

When should thermal paste be applied?

The application of thermal paste is needed when building a PC to ensure the proper functioning of the CPU. Thermal paste helps to transfer heat from the CPU to the heatsink for cooling.

How to apply thermal paste, step by step guide

Applying thermal paste correctly is important for ensuring that your computer's components remain cool and functioning properly. Here is a detailed guide on how to apply thermal paste.

Materials needed:

  • Thermal paste
  • Clean surface
  • Isopropyl Alcohol (99% pure)
  • Lint-free cloth or paper towels
  • A flat and clean surface to work on

Step 1: Cleaning the surface

The first and most important step in applying thermal paste is to clean the surface that the paste will be applied to. Dirt and debris on the surface can interfere with the thermal paste's ability to properly transfer heat.

How to apply thermal paste
Cleaning CPU surface. (Photo: TechNewsToday)

To clean the surface, you'll need to use isopropyl alcohol (99% pure) and a lint-free cloth or paper towels. Dampen the cloth or paper towel with the alcohol and thoroughly clean the surface of the CPU or GPU that the thermal paste will be applied to, making sure to remove all dust and debris. Let the surface dry completely before moving on to the next step.

Step 2: Applying the thermal paste

There are several methods for applying thermal paste, but the most common method is the "pea method". This involves putting a small pea-sized dot of thermal paste in the center of the surface you are applying it to.

Another method is the "spread method". This involves spreading a thin and even layer of thermal paste across the surface of the CPU or GPU.

How to apply thermal paste
Applying thermal paste. (Photo by Mika Baumeister on Unsplash)

Regardless of the method you choose, it's important to use a small amount of thermal paste. Too much thermal paste can actually reduce heat transfer and create air pockets that can trap heat.

Step 3: Mounting the cooler

Once the thermal paste has been applied, you can mount the CPU cooler or GPU heatsink back onto the surface.

How to apply thermal paste
Mounting the CPU sink and fan. (Photo: Instructables)

Make sure to tighten the mounting screws or clips evenly and securely, but don't over tighten as this can cause damage to the CPU or GPU.

Step 4: Boot and test

Finally, turn on your computer and run a stress test or benchmark program to ensure that the thermal paste is working properly and that the components are staying within safe temperature ranges.

In conclusion, applying thermal paste is a simple and straightforward process, but it's important to follow these steps carefully to ensure that the thermal paste is applied correctly and that your computer's components remain cool and functioning properly.