thread semi-cleaned.
all casings discussion in the Case and Modding section please

This is my lapped stock AMD Socket 754 heatsink



nothing great but just wanna put out some pointers

1) Altho the tutorial said let the weight of the heatsink carry the workload, I suggest using your strength to push it onto the sandpaper. I could not get a mirror shine without the pressure.

2) Doesn't mean you have to work all the way to 2000 grit. I worked from 600 > 800 > 1000 > 1500 > 2000 > 1500. Yes, I worked backwards on the last one cos it seems that the 2000 grit one gave me worse results.

3) Please use only glass to lap on. The flatter the surface, the better the results.

4) If you have money, go for 3M sandpaper. Unlike me, buy those cheap 'cap ayam' sandpaper from hardware store...

5) Don't lift up the heatsink half way to see your progress. This makes the contact point different and when you place it back on the sandpaper, it will be back to square one.

Got ppl lap their processor or not.... JK...
Wanna how long the time u guys take to lapping the heatsink....? All kind of material are suitable lapping by sandpaper?

2 hours minimum required, if u got the energy all the way without resting

Bro.. r u serious... 2 hours? But u guys really do a good job, heatsink can make it really shinning n like a mirror....

i use around 2hours also...
not using 3M sandpaper, using Swallow brand bought it from hardware shop.

got a tutorial i found, they teach u how to lap ur northbridge chip.

wanna ask for PJ/KL, where do u find the 3m sandpaper and, I went few h/ware shops only manage to find upto 1500grit but not 3m.

And also assuming say the paper is 1ft by 1ft, is 2 pcs enuf per grit size?

thx in advance

If you have the proper equipment which the most important is the flat glass, then 1 hour also can.... be sure to have everything before you start.


I only used one sheet
Buy good quality one that wont tear easily.

looks like my theory of using 1500 is true.... see guys wat did i tell ya...

1pcs is enuf for each grit. quater (1/4) of the sandpaper is enuf.
btw...i read from other site, actually u does not nid to sand till high grit like 1500 and 2000, till 600 grit will do a good job, coz it is already very flat. high grit is for it to be a mirror finish.
ppl have compared b4 with lapping till 600, and till 2000 and there's no different.

what did u tell earlier? lol

Without that mirror finish, where got puas to see your effort of lapping the heatsink

Its the amazing satisfaction of finding that your metal heatsink is now a mirror.

yaya...thats why i am lapping my heatsink to a mirror! lol
is like a reward for our hard job to satisfy us!

Actually, i've slightly lapped my processor. Not to mirror finish, but just the edges of the processor ihs flat only. It still have it's textures But i didnt take a pic

err but where to get 3M guyz....cant find it in h/ware shops in PJ...

does not reli need from 3M. any better quality from hardware shop should do it.

If without using dishwashing liquid, can we complete the progress untill the heatsink got shining surface?
U guys recommend using glass,right? So how i use it? Use the sand paper cover the glass then start lap the heatsink surface?

This post has been edited by nakata101: Jan 10 2007, 10:36 AM

i had before explain like a few times y i always stop at 1500grit sandpaper. coz it makes no difference....

I only got 600 grit and 1500grit, is it enough for me to start to lap the heatsink?

yes...wat i allways do is i jump grits.... first i use a low grit paper then i jumop to high grit.... like for instance 600 to 1500.... can wan.... saves alot of time...

the glass is to give u the needed flat surface.

what u do is place the sandpaper on the glass (better to tape it down so it doesnt move) and start lapping


EDIT: i used whatever wet& dry sandpaper i can get from any hardware shops. not necessarily 3M. the 2000grit sandpaper i got from ACE Hardware in Mid Valley.

This post has been edited by mADmAN: Jan 10 2007, 01:03 PM