Originally Posted by fstfrddy

You only need two sheets of waterproof paper from an auto supply, I use a little alcohol to wet it not water. get a sheet of 500-600 and 1 of 1000-1200. Then you need a piece of heavy glass. I used an old door from a toaster oven but now I have a nice piece of granite tile from a tile store. get a small piece of foam rubber to hold the pin side of the CPU with so you are not constantly touching the contacts. Then use circular and figure 8 motion to sand off the nickel. Start with the 500 till you get it all off down to bare copper then switch to the 1000 to finish it off. Just use steady even pressure and be careful not to rock it. It does not need to be like a mirror either but the 1000 paper will make it shine the more you do it. after I am done I clean it up with alcohol then dry it with a hair dryer. you don't need to flood the paper just a little once in a while to keep it wet.

Originally Posted by OverVolter

I say you should bring that cpu to a professional person if you want to lap it that badly.. Dont do this by yourself.
If that's your first, maybe you'll do it just a bit wrong, and thats it, the cpu is "damaged".

Originally Posted by NCspecV81

yep and folding performance equivalently correlates to gaming performance. AMIRTE!?

I wished folding would die. /offtopic

Originally Posted by Syrillian

This may help. It is an old thread, but the principles remain the same.

Originally Posted by jeffries7

YouTube is your friend, there are couple of good videos on there

Originally Posted by Swiftes

Right..

I have lapped numerous cpus and types [775, AM2 etc] and I always, always check my flatness with a razor blade first. Most tend to be concave, where the sides are higher than the center. CPU Heatsinks tend to be the opposite.

What I do:

If it is really concave, I start with 240 Grit.
If not, I start with 400 grit.

All you simply do then is secure your paper down on a good flat surface [Glass is ideal]
and keep working your way up through the numerous different grits. Once all the the copper is exposed and the the IHS is flat.

Then continue onto higher grits for polishing.

Remember, flatness is much more important than bling anyday...

Originally Posted by OverVolter

Glass is absolutely flat so if you do lapping on the surface of a mirror, you won't F up your cpu in the first minutes of the operation.
I don't think you got what i tried to say. If you do it only a bit wrong, the ihs of the cpu will be flat, yes, but maybe it'll be skew a bit. Just 1 or 2 degrees, and that will be it, its worse than the original factory state, because the cooler wont sit on it properly. Or you chop off the edges of the cpu and it becomes concave.
You should be extra careful with lapping, and take your time.

When i did mine, at the first attempt, i made the ihs skew . Hours later, it was still skew but now on the other side. About a day of lapping later, the surface is perfect, the cooler is sitting nice on it, i can push it harder (3440MHz stable). But it was a struggle to get it done properly.