Lapping CPU/Cooler - Part 1

[thebighat99]

Why do something like this i think you miss up you cpu and your cooler if there mist up why cant you just return them to manufacture.

[gerry410]

@thebighat99......... LOL... that my friend is a very good point.

I think its both comical and presumptuous that people think they can do a better job than the manufacturers that have spent billions $ on technologies.

However as you know boys will be boys and play with their toys.

I'm the same way. I may try this, need to read more. It may have some merit.

[Raptorman10]

@gerry410 : You can test to see if your cpu or cpu cooler needs lapped by taking a razor blade or straight edge and a flashlight and putting the razor in the cpu at certain angles and see if light shines though anywhere on either of the surfaces. I tested with my cpu/cooler and they were very uneven.

[tricccple]

@SamDeRe81 that's why u put a glass under the sand paper, glass are pretty flat

[JamesCizuz]

@tricccple

Even glass has a variation of 0.015 inch so not it's not very flat, and also a normal CPU has a variation of only 0.0098 inch. So in some cases you would make it worse.

However people fail to realize, that even if you could lap a cpu to a perfect flat, it won't stay that way. When you clamp down a heat sink it does put stress on CPU ruining anything you did you make it flat, and also heat dissipation makes the metal on top of cpu expand a small amount, this is in fact WHY thermal

[Raptorman10]

@JamesCizuz : That's why you also lap the cooler. Two perfectly flat surfaces together isn't going to dent or disform anything.

[JamesCizuz]

@Raptorman10

You are a moron, no one said dent of or deform anything, heat expands and contracts metal, flat surfaces become bended, that is why we bolt heat sinks down to keep them in place from this massive buckling pressure heat expansion causes. Lapping is useless because of this simple fact.

[JamesCizuz]

@tricccple

Paste is used, when the cpu is under stress and metal expands it forms a bubble in middle pushing up on cpu heatsink a small amount so the thermal paste it what keeps absolute contact. I find it funny anyone would lap a cpu "flatter" any real machinist would call them a moron due to heat dissipation which you need to take into account. Lapping is meant for objects that stay at constant temperature and need to be flat, otherwise thermal paste is required.

[tricccple]

@JamesCizuz see, that's good info to know, this is something i attempt since i'm into computers , isn't no professional tutorial or anything which i stated in the beginning

[Raptorman10]

@JamesCizuz : Lapped my Noctua NH-D14 and Phenom II 1090T today and it dropped my max load temps by 8C.

[malpigwalt]

:) LAPP LAPP

[jensderspaten]

are you cooler after lapping your self *g*

cheers!

[devourment8800]

"its going to be fun" i didnt have any fun at all! doing mine took sooo long : /

[jaesungauzakim]

is it easy to lap? and how long does it takes?

[tricccple]

if u try to do a good job, probably takes 2 hours

[jaesungauzakim]

the heatsink looks more easier to lap than CPU... lol you lapped your hand too... lololololol xD

[tricccple]

cpu is easiler, cause cooler's got the edges that makes it real hard to sand down with

[jaesungauzakim]

oh. ok.

[EliteBushido]

the heatsinks weight tends to help a bit

[wikki11]

When you Lapping the waranty will lost :(

but nice lapping

[georgekheiralla]

what is cpu lapping?

[tricccple]

by sanding the surface of the processor to make it very very flat and so to achieve better contact between the heatsink and processor, which helps for better cooling

[georgekheiralla]

ty :), what do u mean by "better cooling" like how many degrees will it drop?

[tricccple]

well the principle of CPU cooler is basically transfer heat to the heatsink and the heatsink fan asist it by blowing cool air to the heatsink, and metal is not perfectly flat, so lapping help it to be flatter then factory made (tho it is still not perfect which is why thermal paste is required) which heat transfers to heatsink faster and better, hence better cooling, and initially 3c drop, and supposely more when thermal pates attaches better

[anpe1001]

All about what chip you got, but around 3-6 C sometimes higher, sometimes lower.

[theor14]

if the sufaces are very bad upto 15oc but normanly 5-10oc

[Twisted86]

To be honest I only use 600 grit and 1500 grit and I can't tell a difference between using 5 different grits vs just 2...cept for saving money.

I just triple how many times I lap since I am using less.

[tricccple]

well i will take that as a tip, this is my first try, therefore i'm more of less follow what most tutorial says

[Twisted86]

oh hey its no issue just stating my ways :)

There is no wrong way to lap...my buddy just uses a dremel tool and 1000 grit and then he uses a polisher to make it sparkle.

I always feared it would destroy my chip but so far none of his has.

[bongman4ghz]

this is really impressive mate nice job.

A+

[coolthevictor]

lmao i was lapping my slef great vis

[Neosferaku]

saw your thread @ ocn.

REALLY nice temps with the Nirvana wow.

I have my e2160 lapped also :3

[tricccple]

thanks, but i know there are lots room for a better job :) after all, i didn't reach my goal, wanted 3.6Ghz. but hey, not all chip can do the same

[toytunergt]

are your fingers any cooler now? lol j/k! good job on that lapping! keep up the good work.

[tricccple]

thanks and will do

and about the finger cooling lol

well it's sensative now, i even get electric shocks from the case when i touch it with that spot, i wonder...

[RickArter]

Great video things looked like they came out very nice and flat. 5/5 Nice overclock on that CPU on air cooling.

Rick Arter

[shegotlockjaw]

Hmm is it really worth the effort?...i mean..does it make much difference?

[shaun928]

just flatter = better contact with HSF

drop in temp would be about 3 degrees

intel cpu's are shocking for flatness on the IHS, always bowed out or in.

[yaiknowscrewme]

Iam gonna do my quad in a few weeks..

[enyceckk101]

Very nice !!

How much did u waste on the sand paper ? I want to try it lol

[tricccple]

mm...just to get it done, one package each is fine, but get 2 each would be the best incase u feel like u want to sand more

[enyceckk101]

Oh , thanks for the tips , But how much did u waste ( like the price )

[tricccple]

oh each of these small packages is about 2-3 dollars at autoshops, which come with 3x sheets, biggerones cost more but that's because they didn't have the small ones, but anyways, all that u see in vid, is about 18 dollars after tax here in toronto

[enyceckk101]

Oh nice .. Thanks

[lnetol]

MAN!

You lapped yourself

tell me

did your temperature (no the cpu) droped?

hehe

cheers

nice video

[tricccple]

matter of the fact yes, but not well enough, going to redo the heatsink agian, right now,

i got same temp at 1.5v 3490Mhz and 1.4v 3400Mhz so there are already some improvements, but Part 2 will have the final results

[lnetol]

hehehe

i was talking about your body temp... it was supposed to be a joke

hehe

but anyways

Nice OC man :)

wanna see part 2 soon

Cheers

[tricccple]

i was joking too man lol lol

[tricccple]

tho it is true lol

[lnetol]

LOL

[LoCoBoi187]

yes u actually listened to my last month's request!

[lollipop2kewl]

I fucked up

[tricccple]

hahahahaha

[lollipop2kewl]

aww shit

[lollipop2kewl]

why didnt you take off the bracket when you lapped it

i did that's not bracket part of The base where u can screw on the bracket slide the heatpipes out of the fins uhhhh

ur joking right?

[lollipop2kewl]

NOICE MAN!

[tricccple]

thanks man