Originally Posted by AyeYo
That's unbelievably smooth... wow... Seems like TIM would do more harm than good at that point...
Here's my question though: Yes, it's ridiculously smooth, but how do you know you've made it flat? It can be crazy smooth, but be lapped at a slight angle. How do you guys make sure that you've kept the surface as true as possible? I know people usually lap on a piece of glass, but how do you make sure you've applied even pressure?
Thanks. Using glass is the best method and also it's more important during the thicker grits to watch what youre doing and of course what hickeydog said is to keeping rotating. The method I like is to go straight up and down and count one every time I'm back at my original starting point. I'll do this 30 times (or 60 if you count every stroke) and then rotate 90 degree's and repeat. I then do about 20 full rotations for each grit. It sounds like working out and believe me, its a workout. Make sure you're in front of a tv and have some cold beverages by your side because it will get boring pretty fast.
It took 7 hours to get my cpu the way I was happy with it. When you look at it in the light and tilt it you still see scratches they are just really fine and theres also microscopic ones there I know I can't see so TIM is still very much useful. To be honest I wasnt planning on lapping my cpu but when I took off the heatsink there were two nics in both the surface of the heatsink and the surface of the cpu which I have no idea how they got there. Something about sanding and voiding a warranty on a $200 cpu makes me cringe.
Great shots rocker. Looks really good, 1200 is really all you need to go up to after that it's just for looks and when its all put together no one will see it anyway.