check this out

fade2green514

Active Member
lapped my cpu - the core 2 duo
100_0778.jpg

100_0773.jpg

100_0767.jpg
 
Last edited:
o_O its a trick of the eyes!!!!!!!!!!! lol

That pic seriously mucks up mine :\

I can't actually see whats what on that pic:P :rolleyes:
 
o_O its a trick of the eyes!!!!!!!!!!! lol

That pic seriously mucks up mine :\

I can't actually see whats what on that pic:P :rolleyes:

what do you mean? thats my processor, i lapped it down to a mirrored finish... 2000grit sandpaper, its probably around 2500-3000grit though just cause i kept at it for so long.

i hope to hit 3.4ghz with my freezer 7. it should do just fine.
this cpu is so tiny, its like 3/4 the size of my athlon 64 X2... :D
 
You should be more careful when you do that.

Otherwise, great work! Did the temps drop much?
 
Its small, but i dont bout 3/4 smaller. It hardly looks smaller to me. But anyway, thats awsome dude, i wanna do that to my X2 and P4, would explain to me how its done and the tools i need? Do you just grind it down with a normal sandpaper grinder? And also, wont that heat up the cpu extremely doing it for a period of time?
 
i was thinking of doing that with my new fx-60 that's coming in a few days. would it be a good idea to use a buffing wheel? or should i do it by hand?
 
you need:
sharpie marker
sandpaper, low grit, medium grit and extremely fine grit (i used 2000grit as my finest)
piece of glass (or any extremely flat surface will do)
neoprene, i used a napkin lol

what you do is you mark an X with the sharpie from corner to corner, and then you sand it with the roughest until the X is completely gone, use the sharpie to place the X back where it was, then use the next finest grit, and repeat until you get it to the FINEST grit that you've got.
what i did was i taped the sandpaper down to the piece of glass, otherwise you get an uneven surface on the cpu, and thats not good. you're looking for the most contact possible.

when i did it to my athlon 64 X2 it actually dropped temps around 7C though.

btw omega, i didnt test temps before i lapped it... and i cant test temps now. my mobo is DOA im waiting for a replacement.
 
Last edited:
Ohhh, you added a second pic and now I can see what you mean:D

I just couldn't get my head round that first pic, so many reflections going on:P

Good job:)
 
[-0MEGA-];445200 said:
Why do you want to do it in the first place?

smoother cpu surface makes better contact with the heatsink, which makes it more efficient. that's what thermal grease really does. it fills in the minute imperfections in the surface to allow better heat dissipation.

did you lap the heatsink surface too? that pic was kind of hard to tell. anybody done this with a buffing wheel? i think i'd get a more even polish than by hand. how much does temp. matter if the cpu is not plugged in? any static electricity issues?
 
smoother cpu surface makes better contact with the heatsink, which makes it more efficient. that's what thermal grease really does. it fills in the minute imperfections in the surface to allow better heat dissipation.
lol, I know why it's better, I was asking why you wanted to do it. I was making sure you were doing that to have better heat transfer, and not just because its cool looking :P
 
[-0MEGA-];445231 said:
lol, I know why it's better, I was asking why you wanted to do it. I was making sure you were doing that to have better heat transfer, and not just because its cool looking :P

who would see it after it was installed? oh wait, i just won't put a heatsink on it. yeah. that way my case lights will reflect off of it. everyone can look in the side of my case and see my shiny processor. :P

can anyone answer my question though?
 
umm, do it by hand. the buffing wheel might give you an uneven surface... flat, but it would lopside the sanding. you would still want most of the pressure from the heatsink to be right in the middle.
mind you, to those who try this mod, you still need thermal compound, just a much smaller amount.

btw, this is the type of thing you do when you are VERY serious about overclocking. i remember awhile back when we were talking about the zalman heatsink and i believe archangel was going to replace the freezer 64 with it... well, you would only want to replace it if you were that serious about it. if the heat couldn't transfer to the fins quickly enough anyways, whats the point of having larger fins right?

though my gains won't be as big as say, phase change cooling... i could get an extra 25-50mhz before i have to start overvolting the thing. this is the same reason people who use phase change cooling can get to 3ghz and beyond with an athlon 64 without an overvolt. colder is simply better.

overclocking is an art :D or at least cooling is... i have fun doing it haha

btw the original place where i found out about this mod was from overclock.net...
http://www.overclock.net/faqs/15897-info-want-lap-your-p4s-a64s.html?highlight=cpu+lapping
 
Last edited:
someone is selling an fx-60 cpu on ebay that has had the ihs professionally removed so the heatsink rests directly on the core. never heard of that one. look it up under fx-60.

i will be doing some overclocking, nothing major, but it can't hurt to lap it. it can only help. i was thinking to use my softest wheel, which is like a polishing cloth. totally non-abrasive. i don't think i'll have to worry about getting it even, i'm more worried about the heat it would generate. the rings i buff get to hot to hold.
 
yea, even with the cpu IHS removed its a good idea to lap the bottom of the heatsink. personally, i'd rather just lap the IHS rather than take it off, since theres a much higher risk when removing the ihs, rather than just sanding it. then again, with cpu's that have pins theres still a pretty high risk of doing either.
 
Back
Top