Lapping a CPU
The art of CPU lapping, especially the Celeron, has been a well known secret for most overclockers. The main aim for doing this procedure is to get better heat transfer between the hestsink and the processor, thus a cooler CPU temp. By sanding the nickel layer off the CPU core, we are exposing the copper layer which we all know is the best medium when it comes to heat transfer.
A lot of sites have a how-to on doing this procedure but most uses a Socket 370 based Celeron. This time you’ll see it done in both Socket 370 and Slot 1 fashion. I know there’s not much difference but for the sake of request, it will be done both ways.
Processor Lapping: Necessary Materials
Sanding Paper 260, 600, 800, 1200 grit
Piece of Cloth/ Foam
CPU Lapping: Procedure
1.Mask the area around the core with masking tape, making sure that the core is the only area exposed.
4.Prepare the sand block by cutting a piece of sand paper and form it around the shape of the block. Use the sand paper according to this order of grits: 260, 600, 800, and 1200 (you can use higher grits, but for me, this did the trick and I achieved the outcome I wanted).
Lapping a CPU: Here Comes the Sanding
Wet the area to be sanded with a piece of damp cloth or foam (Wet Sanding). Then start sanding. Use one hand to hold the CPU then sand with the other hand using an up and down or back and forth motion. If you don’t have a sanding block, place the CPU on a flat surface then sand it using a figure of 8 motion. Occasionally wet the core area with the foam then proceed again with sanding. Changing of sandpaper grits depends on how the sanded area looks. So for a guide here are the pics of the core at the end of each sanding grit.
Before doing this I thought most OC sites already have a lapping howto, but then I thought again, so why should our site be an exception? A bit late for some but still a guide to our newbies who like to experiment.
BE WARNED THOUGH THAT YOU CAN ONLY SAND UP TO A CERTAIN LEVEL. DON’T OVERDO IT. AS LONG AS THE NICKEL IS GONE AND THE CORE SURFACE IS FLAT, ITS FINE!