• "For my high end systems, Thermal Grizzly's Kryonaut Thermal Grease is the absolute top product!"

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  • "Thermal Grizzly Kryonaut is #1, just like me"
    Ian "8Pack" Parry, Overclocking World Champion

Lapping-Tool-AMD-Ryzen-7000

The AM5 Lapping-Tool was developed for grinding the heat spreaders of the AM5 processor series from AMD. The tolerances of the AM5 Lapping-Tool allow a gradual grinding of the heat spreader by 0.4 millimetres, up to a total height of 1.6 millimetres. When using the normal AMD mounting frame (SAM), a maximum sanding of 1.0 mm is provided until the middle steps are reached. A further 0.6 mm is only possible if the CPU is mounted e.g. with a suitable AM5 Contact Frame.

The steps of the AM5 Lapping-Tool are diamond-milled to achieve a high degree of transparency. This makes it visible during grinding which steps have already been reached and which have not. The US-American content creator and Tech-YouTuber „JayzTwoCents“ was able to achieve up to 5 degrees Celsius lower temperatures with minimally higher boost clocks of all cores with a Ryzen 9 7950X using a 360 mm AiO by grinding the heat spreader. In combination with the Kryonaut Extreme thermal paste, even 10 degrees Celsius lower temperatures could be achieved (in comparison with commercially available thermal paste).

Even with a 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 due to the grinding of the heat spreader are, among other things, due to the heat spreaders of the AM5 platform. The heat spreaders introduced with Ryzen 7000 are thicker than the AM4 heat spreaders so that AM4 compatible CPU coolers remain compatible for the AM5 platform. In addition, the surface area of the Ryzen 7000 heat spreaders is significantly smaller at approx. 910 mm² compared to AM4 with 1,300 mm².

  • Simplifies the grinding of the AM5 CPU
  • CNC-milled acrylic glass
  • Complete set with sandpaper
  • Single use

It should be noted that grinding the CPU will void the warranty. For the largest possible contact surface between the IHS and the base plate of the CPU cooler, the latter should also be ground.

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