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Many of ya have heard about lapping a CPU or GPU. Involves smoothing the surface of a CPU, usually to a mirror finish. We're gonna show you how to do just that.
What you'll need:
Sandpaper: I usually go with 3 kinds. For our purposes, 40, 60 and 80 grit sandpaper will work great. Unfortunately they don't really sell these very low grits for the sander I'll be using, so I just cut them to match, and used double sided tape to attach em to the sander:
Our selection
Power Sander: Some people waste hours lapping a CPU by hand. For those of us who have real lives, we're going the direct route. Although a nice belt sander would work wonders, I'm just using a small handheld sander I have kicking around.
Flat surface: A flat surface, although not necessary, helps in keeping the surface of the CPU level. Last thing we need is a sloping core.
Now remember, safety first. Lapping any electronic component will produce dust that can be harmful if inhaled. Safety glasses is always a must, but the main thing to note is the dust hazard. Make sure you keep your beer, mixer, pop or milk away from where you're working to prevent unnecessary chemical additives to your favourite drink.
Well, lets get started.
First, clear away your working surface (phone book, carpet, whatever) and put your work piece on it. Our first demonstration will be with one of AMD's very own Duron 700 CPUs.
Previously seen in VH's Duron OCing article
Now everybody knows the AMD cores are very prone to cracking, which is why we'll forego the higher 80 grit sandpaper and just go with the 60. Attach the sandpaper to your sander and away we go:
Looking good already!
Once you see the surface leveling off, stop and clear away any sanding debris. When you're done admiring your handiwork, slap on the 40 grit sandpaper. Now we're going for the home stretch:
Oh yeah baby!
Now she?s looking SWEET. A 'mirror' finish is not as easy on a CPU, especially because of it's non-mirror qualities. But this looks so good you could eat off it!