Thermal Grizzly AM5 Lapping Tool im Detail
The AM5 Lapping Tool is designed to grind the heat spreaders of AMD's AM5 processor series. The tolerances of the AM5 lapping tool allow the heatspreader to be ground down in increments of 0.4 mm, up to a total height of 1.6 mm. When using the standard AMD mounting frame (SAM), a maximum grind of 1.0 mm is allowed until the middle steps are reached.
A further 0.6 mm is only possible if the CPU is mounted with a suitable AM5 contact frame, for example (product will follow shortly). The steps of the AM5 lapping tool are diamond milled to achieve high transparency. This makes it clear when grinding which levels have already been reached and which have not.
Lower temperatures thanks to grinding of the heatspreader
The US content creator and tech YouTuber "JayzTwoCents" was able to achieve up to 5 degrees Celsius lower temperatures with slightly 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, it was even possible to achieve 10 degrees Celsius lower temperatures (compared to 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 by grinding the heatspreader are partly due to the heatspreaders of the AM5 platform. The heat spreaders introduced with Ryzen 7000 are thicker than the AM4 heat spreaders to keep AM4 compatible CPU coolers compatible for the AM5 platform. In addition, the surface of the Ryzen 7000 heat spreader is significantly smaller at around 910 mm² compared to AM4 at 1,300 mm².
Note on compatibility with AM5 mainboards:
It should be noted that grinding the CPU will void the warranty. For the largest possible contact area between the IHS and the base plate of the CPU cooler, the latter should also be sanded.
Material: acrylic glass
Compatibility: AMD Ryzen 7000 CPUs
Scope of delivery: template, screws, sandpaper
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