The recommended amount of thermal paste to apply on a CPU is generally a small, pea-sized dot placed in the center of the CPU. This amount is sufficient because when the heatsink or cooler is installed, the pressure will spread the paste evenly over the CPU surface, filling microscopic gaps for optimal heat transfer
. For most CPUs, including Intel and AMD mainstream processors, a single 3-4mm dot in the center is advised. For newer Intel 12th to 14th Gen and Core Ultra CPUs with larger or more complex heat spreaders, you can apply one small dot in the center plus four smaller dots near the corners to ensure coverage
. Applying too much thermal paste is not recommended because it can spill over onto the motherboard and reduce thermal efficiency by keeping the metal surfaces too far apart. However, the idea that a little excess paste drastically harms cooling is somewhat a myth; only extreme over-application causing spillage or preventing proper contact is problematic
. In summary:
- Use a pea-sized amount (about 3-4mm diameter) in the center of the CPU.
- For larger or hybrid Intel CPUs, add four smaller dots near the corners.
- Let the cooler's pressure spread the paste; no need to spread it manually.
- Avoid excessive amounts that spill over or prevent good contact.
This approach ensures optimal thermal transfer and prevents overheating issues
