Thermal Grizzly Ryzen 7000 Lapping Tool

• Simplifies the lapping of the AM5 CPU
• Made from CNC-milled acrylic glass
• Complete set with sandpaper
• For single use

The Thermal Grizzly AM5 Lapping Tool in detail

The AM5 lapping tool has been designed for lapping the heat spreaders of AMD's AM5 processor series. The tolerances of the AM5 lapping tool allow for incremental lapping of the heat spreader by 0.4 mm, up to a total height of 1.6 mm. When using the standard AMD mounting frame (SAM), a maximum lapping of 1.0 mm is intended until the intermediate steps are reached.

Another 0.6 mm is only possible if the CPU is mounted, for example, with a suitable AM5 contact frame (product to follow shortly). The steps of the AM5 lapping tool are diamond-milled to achieve high transparency. This makes it clear during lapping which steps have already been achieved and which have not.

Lower temperatures thanks to lapping the heat spreader

The American content creator and tech YouTuber "JayzTwoCents" was able to achieve up to 5 degrees Celsius lower temperatures with minimal higher boost clocks across all cores using a Ryzen 9 7950X with a 360 mm AIO by lapping the heat spreader. In combination with the Kryonaut Extreme thermal paste, even 10 degrees Celsius lower temperatures were achieved (compared to conventional thermal paste).

Even with moderate overclocking of all cores of the Ryzen 9 7950X to 5.4 GHz, the test system remained 4 degrees Celsius below the temperature limit of 95 °C.

These temperature improvements from lapping the heat spreader are partly due to the heat spreaders of the AM5 platform. The heat spreaders introduced with Ryzen 7000 are thicker than the AM4 heat spreaders to ensure that AM4-compatible CPU coolers remain compatible with the AM5 platform. Additionally, the surface area of the Ryzen 7000 heat spreaders is significantly smaller at approximately 910 mm² compared to AM4 with 1,300 mm².