what happen to his finger?..

neoxz is still a overclocker at a great age of 95
way to go granpa

jz jk

normal-lah,
for lapper to get that shine
"hundreds" of hours wetting the sandpaper
have that effct to your hands

neoxz good lap

nah, maybe he juz nid another mirror to comb his hair... it doesn't matter with the temp of his cpu...

jk jk... i juz wonder how to keep the pin (LGA) area clean while lapping huh???

Omg, how did u know?

I thought the whole processor is molded shut
and the lga775 is pin-less?

ebit: i also lapped my pentium d 930
literally drench the whole proc in water

This post has been edited by mcchin: Aug 31 2007, 07:23 PM

oic, so juz simply cover the back of the proc with selotape n then clean it up with alcohol after lapping lar... hmmm gonna gif it a try...

glad to know that ur pc run under water cooler

actually u don't need to cover it up the contact points i mean... just lap with a few drops of water on the sand paper... max i would go is 600 grit.. as lapping ihs is different than lapping heatsink.. in ihs ur not looking for mirror shine, just two factors.. flatness , and thinner ihs... The idea is to keep sanding until you see nothing but copper. You are actually removing a relatively thin layer of tin which is used to prevent oxidation of the underlying coper layar and at the same time provide a suitable surface for the lazer etching used to brand the CPUs.
Copper is better than tin, meaning that simply removing the tin provides a small gradient (and a lower CPU die temperaure for equivalent heat removal capability). At that same time we are making the IHS just a little less thick meaning less thermal resistance there to since the over function (simplified above) we for a given material thickness

then once ur done lapping, just take artic cleaner bottle (2) surface cleaner/purifier , or isopropyll alcohol (90%) mix recomended, to clean teh contact points... and ur done... no need messy masking tape and all that...


key point here is to use very little water.. maybe a drop or two... to lubricate teh sand paper... for easier snading.. u can also do it with out the water

also my points are facts based from an ihs lapping guide by freecableguy over at thetechrepository.com forums aka TTR.COM
cheers.,
reggie..

p/s. to neoxz
this is not to say that ur lapping was not right... but to tell those that are going to lapp their ihs that a irror is not needed.. but by all means if its what he/she wants u can do it... neway nice lapping job...

This post has been edited by lolhalol: Sep 3 2007, 03:58 PM

I think u meant nickel plating there lol. I dunno about u, but i actually yield better results with mirror

My Results:

Requirement:
2x400grit sandpaper
2x800grit sandpaper
2x1200grit sandpaper
2x1500grit sandpaper
1x2000grit sandpaper
a flat surface
some patience and time

This is the original heatsink...


As you can see that it is very rough and not balanced...

Firstly, you use the flat surface to lay your sandpaper so that it wont be the heatsink wont be imbalance.. Start with 400grit you put the heatsink on the sandpaper.. then you push it(don't use force as it may cause the heatsink to have rounded edge) up and down after a few rounds turn the heatsink 180degrees and do it again... repeat until you have a full polished surface... Go either horizontally or vertically to make it easier to see which part of it is not polished... Repeat with ascending grit sandpapers..

Note: Start with 400grit if you have a very rough heatsink surface ... Otherwise you can start with 800 or so...

After 400grit


After 800grit


After 1200grit


After 1500grit


After 2000grit


After I finished polishing with the sandpaper... I used some industrial grade metal polish to make it shine further...

After metal polish


You can do the same to the CPU but start with 1200grit as CPU IHS is made of soft metals...

After polishing CPU(my e6600)


Results of hardwork:
Before polishing(ambient temp 24°C)

After polishing(ambient temp 30.1°C)


As you can see it shove of 2°C of the idle temp and almost 6­­°C of the load temp...

This post has been edited by IcEMoCHa: Nov 13 2007, 10:03 AM

Well now, that another shiny proc+ heatsink done to perfection... Great results too

Ur work deserves a place in the front page

Here

This post has been edited by neoxz: Nov 16 2007, 02:02 AM

Thanks man..

nice one there bro... short and simple

Your in air cond room? noticed ur room is cooler at 1pm with ambient of 24 than 9am

Afternoon hot mah... So on air cond lor... haha..

eh..doing it on the proc,will the whole IHS came off due to the stress cause we are holding on another side..?

ice mocha,what is metal polish?where can i get it from?

Erm... Doing it on the proc is okay... All proc got a copper IHS inside... Metal polish ... Hmmm .... I got mine from hardware shop....

Can void warranty for lapping ihs?

er...this thread is not pinned up yet ?

Yea... It does void the warranty... But I don't think it will spoil by lapping it...