How hard is it to lap a CPU
How hard is it to lap a CPU
Yes, you're essentially just smoothing the IHS. No, it's not merely about thinning it out; the aim with lapping is achieving an exceptionally flat surface. You must ensure consistent pressure, grind uniformly across all areas, keep your sandpaper firmly pressed down, and avoid repetitive motions to prevent unevenness. If you're unsure, start by using a flat piece of aluminum from a hardware store and practice until you achieve a mirror-like finish, before risking any critical components.
Generally speaking, yes. Secure some sandpaper onto a very flat surface—glass pans are ideal if you don’t have precision glass. Apply water and spread it across the IHS. Keep the CPU steady and gradually remove material until the nickel coating disappears. Whether it’s beneficial depends on your setup. Lapping CPUs only matters when using non-stock ILMs and you intend to cool the CPU below zero degrees, where thermal paste acts more like an insulator. At room temperature, it offers minimal benefit, usually just a 1°C change at best. If you’re doing it for fun or planning a cold CPU run, go ahead—but real gains are unlikely.