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lapping a Q6600 Go, temp drops 10 degrees

post #1 of 28
Thread Starter 
Here is a little guide of lapping for a Q6600 G0 and HSF THERMALRHIT 120 XTREME.

What is lapping? : is let the surface of the IHS the most smooth using sandpaper until can see the true color of the IHS (copper) with this we will find that the heat drops ~10 degrees Celsius.

Mats we need
3 sandpaper, one of the numbers 400, 1000, and 1500.
A totally smooth surface
Metal polish liquid (optional), just to give it mirror effect not necessary.
Important is the let the surface a totally smooth surface, without impurities of any kind.

What we are doing here is, paste the sandpaper on the smooth surface, were starting with the number 400 sandpaper this one is for the first part of the job take the micro carefully doing move up and down at every 30 moves turn it 90 degrees , in this picture were see an example of how to set the sandpaper.






At this time we should be notice that the micro start to show the IHS true color, when you that all the aluminum color is out and the copper color start to appear, then is time to switch the number 1000 sandpaper , here we see how the edges start to show the true color.




And now… do the same to the THERMALRHIT 120 XTREME



Finally we have the micro and IHS well polished with the number 1000 sandpaper, so… at the final touch were going to use the number 1500 sandpaper.





And finally after 4 hours of job and with the arms hurting as hell… we almost finish, the last phase and optional is apply the metal polish liquid.



And…… Were done!!!




Q6600 G0 @ stock

Without lapping
IDLE-31-26-31-26
FULL-51-46-51-46

Lapping
IDLE-28-23-28-23
FULL-45-40-45-40

Q6600 G0 @ 3.2 Vcore 1.4

Without lapping
IDLE-36-31-36-31
FULL-67-63-67-63

Lapping
IDLE-31-26-31-26
FULL-57-52-57-52

hope this is useful for you guys and enjoy!
post #2 of 28
nice guide, you know mirror finish isnt important right

rep for the effort
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post #3 of 28
Damn thats pretty impressive
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post #4 of 28
Thread Starter 
yup, mirror effect is not important, just looks cool tho
post #5 of 28
Androsk just a idea make sure the polish isnt a real grease based one because it can cause the thermal paste to not work as well. Like putting oil and water together and trying to get them to be one. lol
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post #6 of 28
Nice work

That TRUE sure is a fun hunk of metal to lap, HUH?
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post #7 of 28
This is the lapping guide I have been looking for!

Thanks!!!!!
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post #8 of 28
It is important to note that if you leave a fingerprint on the exposed copper of the IHS or the heatsink, it will tarnish over time. It is important to clean both suraces completely and not touch the exposed copper afterwards unless you have a latex glove on.

Excellent Thread! rep+
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post #9 of 28
You usually get a huge drop in temp if you lap both the IHS and HS, if you don't want to void your CPU warranty though just lapping the TRUE might only see a 5C temp drop. Then again 5C drop is pretty impressive in itself.
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post #10 of 28
when you lapped the HS where did you hold onto it while sanding?
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