Evo, naso sam
http://www.xtremesystems.org/forums/...light=p180+mod
Here is my method of how i lapped the CPU:
I got the following grits of sandpaper for wet sanding:
320, 800 and 1200
I used a laminated piece of wood for surface as it is close to 100% flat.
Here is how it looked after 10 mins of sanding with 320 grit:

As you can see the IHS was slightyly concave.

15 mins with 320 grit.

45 mins with 320 grit.

And now i was done with 320 grit after aprox. 60 mins. It is quite scratchy as you can see. Time to move on to 800 grit.

And here is how it looked after aprox 30 mins with 800 grit. Still a bit scratchy.

After 30 mins with 1200 grit it started to look quite mirrorish.

And after about 20 mins with some metal polish all the small scratches was gone and it started to look really good.
