[THE_EGG]

Originally Posted by l3p

Thanks my loyal follower :P

Lovely weather yesterday, so went out to lap my Cpu

This time I'm going to lap it faster then normal.
How to with extensive explanation can be found here:
http://www.l3p.nl/other-builds-mods/cpu-lapping/


http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Cpu still WITH warranty here

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


All you need..

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Finding a way to protect the backside of the Cpu since Intel doesn’t
give a nice protection cap any more on boxed s1155 Cpu’s.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


So we use marking / painters tape.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


I’m using some rubber tape too.
This way you have a better grip and don’t get sore fingers.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Starting with P400.
Only a few “wipes” and … gone warranty.
The sanding with P400 is the most important and longest step.
Some people tape the sandpaper to the mirror, but if you hold it tight with your other hand you don’t have to.
Just go from left to right on the paper.
Don’t press on the cpu, just use the weight of your hand.
Every 2 minutes turn the cpu 90° clockwise.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


2 Minutes with P400.
Nothing to see yet.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


7 Minutes with P400.
You can see clearly this Cpu isn’t flat.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Another 3 Minutes with P400.
Total 10 Minutes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Another 10 Minutes with P400.
Total 20 Minutes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


And another 10 Minutes with P400.
Total 30 Minutes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


You can see the IHS is completely flat copper now.
Now the real polishing comes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


10 Minutes with P600.
Total 40 Minutes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Skipping P800.
Straightly to P1000.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


10 Minutes with P1000.
Total 50 Minutes.
You can see it’s already starting to mirror.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Further on with P1500.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


10 Minutes with P1500.
Total 1 hour.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


P2000.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


10 Minutes with P2000
Total 1 hours and 10 Minutes

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Now we need to change our strategy.
First of all clean the mirror and the cpu.
This is because the old copper particles can ruin your polish job by rubbing them into the IHS.
Now you don’t go from left to right with the cpu.
Just move in a circle for 2 minutes and then turn the cpu 90° clockwise again.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


10 Minutes with P2500.
Total 1 hours and 20 Minutes.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


You can see the copper dust already starts to oxidise.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


5 Minutes with P2500.
Total 1 hours and 25 Minutes.
Almost done. :P

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Another 5 Minutes with P2500
Total One and a half hour!

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG


Pictures are clickable for full resolution.

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

http://www.l3p.nl/files/Hardware/Cpu...%5B550x%5D.JPG

Back to the case tomorrow

truly outstanding :O Just out of curiousity, how much would this improve temperatures from the original state?